Best Exhaust Manifold For 6.7 Cummins: Ultimate Power Boost!

Improving the performance and durability of your 7 Cummins engine often starts with upgrading key components like the exhaust manifold. Many owners face issues such as cracking, poor exhaust flow, or excessive heat buildup with factory-installed manifolds.

Finding the best exhaust manifold for 7 Cummins can help address these problems by providing better airflow and increased strength.

This type of exhaust manifold is designed specifically for heavy-duty use, making it suitable for truck owners who need reliable performance under demanding conditions. Along with enhanced durability, a quality manifold can lead to improved engine efficiency and reduced turbo lag.

In this review, we will explore various options for exhaust manifolds compatible with the 7 Cummins engine. The discussion will cover design features, materials, and how each product performs in real-world situations to help you make an informed choice.

Unlock Maximum Power and Efficiency with Top-Tier Turbo Upgrades for Your Diesel Engine

Image	Product	Price
Our Top Picks 1	APDTY 158060 Ceramic Coated Exhaust Manifold Kit 6.7L Cummins Turbo	Buy Now
Our Top Picks 2	BD Diesel 1043007 Exhaust Manifold Kit Incl. Manifold/Cross Over Tube/EGR	Buy Now
Our Top Picks 3	Intake Manifold Kit for 6.7L Cummins 2007-2012 Dodge Ram 2500/3500	Buy Now

1. APDTY 158060 Ceramic Coated Exhaust Manifold Kit 6.7L Cummins Turbo

Upgrade your 7L Cummins turbo system with the APDTY 158060 Ceramic Coated Exhaust Manifold Kit. This carefully crafted kit serves as an excellent replacement for damaged or leaking exhaust manifolds, combining durability with reliable performance.

Its ceramic coating helps manage heat more efficiently, providing long-lasting protection.

Designed to meet exact vehicle specifications, the kit includes all necessary components to simplify installation. Whether restoring or improving your exhaust system, this manifold kit offers a dependable solution that ensures smooth operation and enhanced longevity.

The APDTY 158060 comes complete with a ceramic coated exhaust manifold, manifold gasket, flange gasket, EGR cooler gasket, and hardware, making it a comprehensive replacement option. Its ceramic coating improves heat resistance, which minimizes the risk of warping and extends part life. The manifold fits precisely, thanks to a design that matches original equipment specs.

Durability is emphasized with high-quality materials that withstand the rigors of heavy engine use. The kit is simple to install, compatible with various vehicle models, and supported by a compatibility chart to verify fitment. It suits mechanics and vehicle owners seeking to restore exhaust integrity without hassle or extensive modifications.

Compared to some aftermarket alternatives, this kit offers a balanced combination of cost-effectiveness and reliability. Its robust design helps maintain engine efficiency and reduces exhaust leaks.

Pros

• Ceramic coating enhances heat resistance and durability.
• Complete kit with all necessary gaskets and hardware included.
• Designed to fit specific vehicle models accurately for easy installation.

Cons

• Exterior requires painting if aesthetic finish is desired.

The APDTY 158060 Ceramic Coated Exhaust Manifold Kit delivers a reliable and efficient exhaust solution for 7L Cummins turbo setups.

It strikes a strong balance between durability, functionality, and simple installation. With its full gasket and hardware set, replacement becomes hassle-free and restores proper exhaust flow effectively.

2. BD Diesel 1043007 Exhaust Manifold Kit Incl. Manifold/Cross Over Tube/EGR

Experience improved engine efficiency and durability with the BD Diesel 1043007 Exhaust Manifold Kit. Designed specifically for various vehicle models, it delivers a reliable fit and outstanding performance. Crafted for durability, this kit includes everything needed for a complete manifold upgrade.

Crafted for durability, this kit includes everything needed for a complete manifold upgrade.

The kit features a vehicle-specific design assuring seamless compatibility. Included components cover the exhaust manifold, cross over tube, and EGR parts to maintain proper functionality.

Users have praised its long-lasting quality, with many reporting months of trouble-free use after installation.

Performance gains come from the optimized flow of exhaust gases, enhancing engine power and efficiency. Installation is straightforward when matched to the correct model, thanks to clear specifications and complete included components. This exhaust manifold kit caters well to truck owners seeking dependable replacement parts that ensure original equipment standards.

This exhaust manifold kit caters well to truck owners seeking dependable replacement parts that ensure original equipment standards.

Compared to similar aftermarket exhaust manifolds, this BD Diesel kit balances durability with ease of installation. It avoids common fitting issues thanks to precise engineering by BD Diesel Performance.

Whether for daily drivers or work vehicles powered by the 7 Cummins engine, users receive an upgrade that preserves emissions control while boosting exhaust flow.

Pros

• Durable, thick casting material provides a factory-like fit
• Complete kit includes exhaust manifold, cross over tube, and EGR components
• Improves exhaust flow and engine performance without compromising emissions

Cons

• Compatibility requires confirmation with the seller for specific vehicle fitment

The BD Diesel 1043007 Exhaust Manifold Kit stands out for its combination of quality construction and comprehensive design. It suits those looking to replace or upgrade exhaust components on

7 Cummins engines with a reliable, well-engineered option. For a balanced blend of performance and durability, this kit offers significant value in the replacement manifold category.

3. Intake Manifold Kit for 6.7L Cummins 2007-2012 Dodge Ram 2500/3500

Upgrade your 7L Cummins engine with the SPBREW Intake Manifold Kit designed specifically for

5 to 2012 Dodge Ram 2500/3500 models. This kit offers a precise fit that enhances airflow and maximizes engine power. Experience a noticeable improvement in throttle response and fuel efficiency right after installation.

Crafted for durability and efficiency, the kit replaces the original grille heater to prevent loose parts from compromising engine performance. Installation is straightforward with all necessary hardware included, making it accessible for both professional mechanics and DIYers.

The SPBREW Intake Manifold Kit redefines performance by doubling the OEM intake port diameter. This feature increases air intake by 88%, which improves combustion efficiency and supports higher horsepower.

The manifold perfectly fits factory mounting points, eliminating the need for modifications or additional parts.

Every component, from washers to special fuel lines, comes included to ensure a seamless setup process. The kit also incorporates a vertically mounted coil heater for dependable cold starts and enhanced intake efficiency.

Designed with the needs of Dodge Ram owners in mind, the kit suits those looking to upgrade their truck’s engine performance without complex installs. It stands out against competitors by addressing common issues such as dropped bolts and provides extra protection with the grille heater plate upgrade.

Ideal for models without chassis cab configurations, it offers a meaningful performance boost over stock manifolds.

Pros

• 2× larger intake port than OEM, increasing airflow by 88%
• Includes all necessary hardware for easy, direct-fit installation
• Prevents dropped bolts with upgraded grille heater plate

Cons

• Not compatible with chassis cab versions of Dodge Ram

This intake manifold kit delivers noticeable enhancements in power and efficiency for 7L Cummins engines while simplifying upgrades through its precision fit and comprehensive hardware package.

4. BD Diesel 1041463 Exhaust Manifold Kit Dodge/Ram 1500/2500/3500 09-22 5.7L

Upgrade your Dodge/Ram with the BD Diesel 1041463 Exhaust Manifold Kit, designed to enhance performance and durability. Crafted from high-silicon ductile iron, this manifold provides reliable strength built to withstand demanding conditions.

Engineered specifically for 2009-2022 models with a 7L engine, this kit offers a complete solution with all necessary gaskets and longer fasteners for secure installation.

The BD Diesel Exhaust Manifold Kit features robust construction with high-silicon ductile iron, delivering excellent heat resistance and longevity. It replaces common OEM issues such as broken bolts and ticking sounds, ensuring a more dependable upgrade.

Installation is simplified with included longer fasteners and spacers, making it easier to replace the factory manifold and preventing future failures. Compatibility is streamlined for select Dodge/Ram 1500, 2500, and 3500 models, excluding 2019+ DT body styles.

Users have reported improvements in throttle response and reduced exhaust noise after the upgrade. This manifold maintains sensor performance and looks to extend your vehicle’s life by preventing repeat issues commonly found with original parts.

Pros

• Durable high-silicon ductile iron construction resists heat and wear
• Comes with all gaskets and longer fasteners for secure fitment
• Reduces exhaust noise and improves throttle response

Cons

• Does not fit 2019+ DT body style trucks

For those seeking a reliable and more durable exhaust manifold kit for their Dodge or Ram truck, the BD Diesel 1041463 is a solid choice. Its quality materials and thoughtful design address common OEM weaknesses. This upgraded manifold offers quieter performance and improved driving feel, contributing to long-term vehicle reliability.

This upgraded manifold offers quieter performance and improved driving feel, contributing to long-term vehicle reliability.

5. BD Diesel Performance 1045987 Pulse Exhaust Manifold for 03-07 Dodge

Enhance the performance and durability of your 03-07 Dodge diesel engine with the BD Diesel Performance 1045987 Pulse Exhaust Manifold. Designed to deliver reliable exhaust flow and withstand high temperatures, it offers a solid upgrade over stock manifolds.

Built to replace Cummins part numbers 3967995, 3943871, and 3943875, this manifold ensures a direct fit without modifications. The painted exterior adds corrosion resistance while maintaining an attractive finish suitable for daily use and performance driving.

Whether upgrading for better exhaust pulse management or replacing a worn part, this manifold meets the need with consistency and strength.

Featuring a robust construction, the BD Diesel Performance manifold is engineered for long-lasting service and enhanced engine efficiency. Its pulse design improves exhaust scavenging, which can aid in maintaining steady backpressure and reducing turbo lag. This contribution supports smoother engine operation and throttle response.

This contribution supports smoother engine operation and throttle response.

Installation is straightforward thanks to the exact OEM specifications, fitting perfectly within the engine bay of compatible Dodge trucks. Weighing 25 pounds, it is sturdy yet manageable during replacement procedures. Users have reported excellent packaging and rapid delivery, meaning the part arrives ready without damage or delay.

Users have reported excellent packaging and rapid delivery, meaning the part arrives ready without damage or delay.

Compared to other aftermarket options, this manifold stands out for its consistent manufacturing quality and direct compatibility. It suits truck owners aiming to maintain or improve their

9L Cummins diesel’s exhaust system without complications. The performance gains coupled with ease of installation make it a practical choice for maintenance or upgrades.

Pros

• Direct replacement for Cummins OEM numbers, ensuring perfect fitment
• Pulse exhaust design enhances exhaust flow and engine responsiveness
• Durable painted finish resists corrosion and harsh conditions

Cons

• Higher weight compared to some lightweight aftermarket exhaust manifolds

The BD Diesel Performance 1045987 Pulse Exhaust Manifold provides a reliable and efficient solution for Dodge owners seeking quality and dependability. Its thoughtful design and robust construction support improved exhaust dynamics and long service life. Ideal for those wanting a straightforward upgrade or replacement, it offers solid value within its category.

Ideal for those wanting a straightforward upgrade or replacement, it offers solid value within its category.

6. Mishimoto Exhaust Manifold Stud Kit, Compatible with Dodge Ram Cummins

Upgrade your Dodge Ram Cummins engine with the Mishimoto Exhaust Manifold Stud Kit. Designed for flawless compatibility with

9L and 7L diesel engines spanning from 1994 to 2018, it promises enhanced reliability and performance. Experience smoother turbo response thanks to improved boost sealing and decreased risk of manifold warpage.

Crafted from machined chromium-infused steel, the studs withstand corrosion and intense heat for lasting durability. The 12-point design prevents bolt rounding and helps maintain a secure fit.

Installation is straightforward, even within constrained engine bays, making alignment and bolt fitting hassle-free.

The Mishimoto Exhaust Manifold Stud Kit is built with high-quality materials that stand up to demanding engine conditions. Its compatibility across numerous Cummins models ensures wide adaptability for many Dodge Ram owners. The corrosion-resistant finish prolongs the studs’ lifespan, reducing maintenance needs over time.

The corrosion-resistant finish prolongs the studs’ lifespan, reducing maintenance needs over time.

Performance benefits include maintaining manifold integrity under thermal stress and enhancing turbocharger efficiency with steady boost retention. This kit simplifies installation, saving valuable time and effort during upgrades or repairs.

The precise fitment minimizes the chance of leaks and alignment problems that can affect engine output.

Designed for mechanics and vehicle owners who require dependable components, this stud kit fits seamlessly into existing setups. Its robust construction justifies the investment by supporting consistent engine performance.

Compared to generic kits, Mishimoto provides a tailored solution optimized for Cummins powertrains.

Pros

• Engineered for perfect fitment on 5.9L and 6.7L Cummins engines
• Chromium-infused steel studs resist corrosion and heat damage
• Installation-friendly design simplifies alignment and bolt installation

Cons

• Specific to Dodge Ram Cummins engines from 1994–2018, limiting broader use

Choosing the Mishimoto Exhaust Manifold Stud Kit reinforces engine durability and reliable turbo performance. Its precise engineering paired with sturdy materials offers great longevity.

7. Exhaust Manifold Gaskets, Stud & Nut kit Fit for Dodge

Upgrade your Dodge Cummins engine with the Exhaust Manifold Gaskets, Stud & Nut Kit designed for 9L and 7L diesel models from 1998 to

This comprehensive gasket set supports a stable exhaust flow by maintaining a tight seal under extreme conditions.

Crafted to fit Dodge engines perfectly, it offers enhanced reliability and performance by preventing exhaust leaks that can reduce engine efficiency. The kit provides essential components to restore your exhaust manifold’s integrity and durability.

Designed specifically for Dodge Cummins 9L and

7L diesel engines, the gasket kit replaces OEM parts 1045986, 1045985, and Each piece is manufactured from high-quality materials built to withstand high heat and pressure without warping or cracking. This ensures the exhaust manifold holds a consistent seal for optimal engine operation.

The package includes six exhaust manifold gaskets, two turbo oil drain tube gaskets, twelve M10x1.50 studs, and twelve stainless steel flanged serrated nuts.

Together, these parts create a reliable connection that resists corrosion and rust, extending the engine’s service life. Installation is straightforward when compatible with the designated Dodge Cummins models, making it suitable for DIY repairs and professional maintenance alike.

Those seeking durability and stable performance for their diesel engines will find this kit valuable. While some users noted that the bolt holes might be slightly large for studs, the overall kit maintains engine efficiency by preventing exhaust leaks effectively.

Pros

• High-temperature and corrosion-resistant materials for long service life
• Complete kit including gaskets, studs, and nuts for a comprehensive replacement
• Designed for a perfect fit on Dodge Cummins 5.9L and 6.7L diesel engines

Cons

• Bolt holes may be slightly oversized, potentially affecting fit on some studs

Combining quality materials and a complete set of components, the Exhaust Manifold Gaskets, Stud & Nut Kit offers dependable sealing and durability for Dodge diesel engines. It supports efficient engine operation while resisting wear from extreme heat and pressure.

8. Intake Manifold Kit for 6.7L Cummins 2013-2018 Ram 2500/3500 Engine

Enhance your Ram 2500 or 3500 with the Intake Manifold Kit designed specifically for 7L Cummins engines from 2013 to

Crafted with precision, it fits seamlessly without requiring modifications.

Built to replace the original manifold and grille heater, this kit also prevents loose bolts from damaging your engine and supports reliable cold starts. Experience better fuel efficiency and quicker throttle response with a design that truly complements the power of your Cummins engine.

The SPBREW Intake Manifold Kit stands out with its innovative 2× larger intake ports, allowing 88% more air to enter the engine cylinders. This increase improves combustion efficiency and boosts overall horsepower.

Alongside the upgraded grille heater, the vertical coil heater ensures consistent cold start performance, critical for durability in various conditions.

Installation is straightforward, requiring no modifications thanks to factory mounting compatibility. The kit comes complete with gaskets, bolts, washers, and specialized fuel lines, simplifying the replacement process.

Offering a substantial performance enhancement over stock components, this intake manifold suits drivers seeking increased power and smoother operation in their 7L Cummins trucks.

While the included instructions may be a bit challenging, careful attention results in a secure and precise fit, as reported by users who installed it on similar models.

Pros

• Significantly larger intake ports increase airflow by 88%
• Includes upgraded grille heater to prevent engine damage
• Direct bolt-on installation with complete hardware kit

Cons

• Installation instructions can be difficult to follow

This intake manifold kit delivers tangible performance gains and improved engine reliability for 7L Cummins Ram trucks. Its combination of increased airflow, durable build, and practical design make it a valuable upgrade option.

Its combination of increased airflow, durable build, and practical design make it a valuable upgrade option. For those comparing similar products, the integrated grille heater upgrade adds an extra safety measure against engine failures caused by dropped bolts.

9. MAHLE MS19225 Exhaust Manifold Gasket Set

Upgrade your vehicle’s exhaust system with the MAHLE MS19225 Exhaust Manifold Gasket Set. Designed to provide a secure and reliable seal, this gasket set prevents exhaust leaks and enhances overall engine performance.

Crafted with precision, it fits seamlessly to ensure a perfect match every time.

Manufactured with quality materials, the set withstands extreme temperatures and pressures typical in exhaust systems. Its durability helps maintain engine efficiency and reduces noise caused by leaks.

Easy to install and engineered for long-lasting service, it is suitable for drivers seeking dependable repairs.

The MAHLE MS19225 gasket set offers an effective solution to exhaust manifold sealing issues. Each gasket provides a snug fit that resists wear and tear from heat cycles. This reduces the risk of exhaust gas leaks that can affect engine operation and emissions.

Its high-quality construction ensures longevity and reliable performance under demanding conditions. Installation is straightforward, even for those with moderate mechanical skills.

By maintaining an airtight seal, the gasket set contributes to better fuel economy and less noise pollution. It provides value by extending the life of your exhaust manifold and related components. Ideal for anyone looking for an effective replacement part without compromising on quality.

Pros

• Durable construction resistant to high temperature and pressure
• Precise fit ensures an effective seal to prevent exhaust leaks
• Easy installation compatible with various 6.7 Cummins engines

Cons

• Limited warranty coverage

For those seeking a dependable exhaust manifold gasket, the MAHLE MS19225 delivers consistent performance and reliability. It stands out as a solid replacement option compared to some generic gaskets by providing a tailored fit and lasting durability.

With positive user feedback, it’s a trustworthy choice for maintaining your vehicle’s exhaust integrity.

10. A-Premium Right Side Exhaust Manifold Kit [6.7L] Compatible with Ram

Upgrade your Ram 7L diesel engine with the A-Premium Right Side Exhaust Manifold Kit designed for models from 2013 to This direct replacement part offers a seamless fit and reliable performance for your vehicle.

This direct replacement part offers a seamless fit and reliable performance for your vehicle. Enhance engine efficiency and maintain optimal exhaust flow with precision-engineered components.

Built specifically to match original equipment specifications, this exhaust manifold ensures a trouble-free installation and consistent operation. Crafted from durable stainless steel, it withstands high temperatures and resists corrosion for long-lasting use.

The kit fits various Ram models including 3500, 4500, and 5500 equipped with the ETN engine design. Its natural finish provides a clean and professional look beneath your hood.

Without a heat shield included, it optimizes dissipation of heat generated during engine operation.

A-Premium’s strict quality control and adherence to OEM dimensions guarantee stability once mounted. The product’s balance of strength and precision contributes to smoother engine performance and helps reduce potential exhaust leaks. Users who prioritize reliability and ease of installation will find this replacement manifold a solid choice.

Users who prioritize reliability and ease of installation will find this replacement manifold a solid choice.

Compared to aftermarket exhaust manifolds, this option maintains close conformity to factory standards while being more affordable than dealer parts. It serves well for owners needing a dependable repair or upgrade component compatible with their Cummins-powered Ram.

Pros

• Stainless steel construction for durability and corrosion resistance
• Direct replacement with OEM-spec dimensions for easy installation
• Compatible with multiple Ram 6.7L ETN engine models from 2013-2018

Cons

• Does not include a heat shield for added thermal protection

This exhaust manifold kit delivers a balanced combination of durability, fitment accuracy, and thermal handling designed for heavy-duty Ram trucks. Its quality materials and OEM-matched design make it a dependable choice for replacing worn or damaged manifolds. Below are the detailed specifications for quick reference.

Below are the detailed specifications for quick reference.

11. Intake Manifold Kit for 6.7L Cummins 2019-2024 Ram 2500/3500 Engine

The Intake Manifold Kit for 7L Cummins (2019-2024 Ram 2500/3500) elevates engine performance with precise engineering. Designed to enhance airflow and fuel efficiency, it offers a substantial boost to your truck’s driving dynamics.

This upgrade fits perfectly and supports reliable cold starts for daily and heavy-duty use.

Crafted by SPBREW, the kit improves engine breathing by doubling the intake port size compared to OEM parts. Besides performance gains, it focuses on durability and ease of installation.

Engineers designed the manifold specifically for the 2019-2024 Ram 7L Cummins models to match factory specifications.

The kit delivers an 88% increase in air intake, enhancing combustion and power output. These enhancements directly translate into quicker throttle response and possible fuel savings.

Installation is straightforward, as the manifold mounts onto existing factory points without modification. The package contains necessary hardware, including washers, gaskets, bolts, and special fuel lines, ensuring a clean fit and secure assembly. An upgraded grille heater plate replaces the original, minimizing the risk of dropped bolts damaging the engine.

An upgraded grille heater plate replaces the original, minimizing the risk of dropped bolts damaging the engine.

Performance improvements extend to cold starts, thanks to a vertically mounted coil heater atop the manifold. The build quality assures longer-lasting service under demanding conditions. Ideal for Ram owners seeking both everyday reliability and upgrading power delivery with minimal hassle.

Pros

• Increases air intake by 88% with 2x OEM diameter ports
• Easy installation using original factory mounting points
• Improves throttle response and engine efficiency noticeably

Cons

• Installation instructions could be clearer with larger images

Overall, the SPBREW Intake Manifold Kit offers an efficient way to enhance your Cummins-powered Ram truck’s breathing capability and performance. It stands out for its thoughtful design, including safeguards against dropped bolts and added cold-start support. This quality upgrade balances power benefits with ease of installation to suit a wide range of users.

This quality upgrade balances power benefits with ease of installation to suit a wide range of users.

12. 1045986 Exhaust Manifold Gaskets, Stud & Nut kit Fit for

The 1045986 Exhaust Manifold Gaskets, Stud & Nut Kit offers a reliable solution for maintaining your Dodge Cummins 9L and

Engineered to match original equipment specifications, this kit provides a durable and efficient seal to optimize exhaust flow and performance. It is designed to fit precisely, ensuring a hassle-free installation experience.

Built from high-quality materials, this manifold gasket set combines durability with resistance to extreme temperatures and pressure. The comprehensive kit includes gaskets along with studs and nuts, replacing the common wear parts that may cause leaks or engine inefficiencies.

Ideal for those looking for a dependable replacement without compromising on quality.

Offering compatibility with multiple OE part numbers such as 1045986, 1045985, and 1045987, this product covers a wide range of Dodge Cummins models. The high-grade materials enhance long-term performance by withstanding engine heat cycles.

The inclusion of studs and nuts enables a complete replacement, reducing the need for additional purchases.

Ease of installation is enhanced by precise fitment that aligns seamlessly with existing engine components. While the kit does not include installation instructions, it is best suited for experienced mechanics or professionals. This ensures proper sealing and prevents exhaust leaks which can affect engine efficiency and emissions.

Compared to other gasket sets, the 1045986 kit provides a balanced quality-to-cost ratio, especially for users needing a full manifold hardware replacement. Its robust construction offers better longevity than many aftermarket alternatives, though some users may prefer to reuse existing hardware to reduce expense.

Pros

• Compatible with multiple Dodge Cummins engine models from 1998-2019
• High-quality materials improve durability and resistance to engine heat
• Complete kit including gaskets, studs, and nuts for a full replacement

Cons

• Hardware quality described as basic; some users prefer using original studs and nuts

This manifold gasket kit delivers solid performance and fit for Dodge Cummins diesel engines. It is a practical choice for those needing a reliable gasket replacement backed by original equipment compatibility.

13. 1045986 Exhaust Manifold Gaskets Kit, Compatible with Cummins 24-Valve Engine

Upgrade your Cummins 24-Valve diesel engine with the 1045986 Exhaust Manifold Gaskets Kit. Designed to fit models from 1998 to 2019, this gasket set aims to provide a reliable seal for the exhaust manifold and enhance your engine’s performance.

Its compatibility with both 9L and 7L Cummins engines makes it a versatile choice for diesel truck owners seeking a cost-effective repair solution.

The kit includes six exhaust manifold gaskets, constructed to meet original equipment specifications. This ensures a tight and durable seal that helps prevent exhaust leaks, improving engine efficiency and reducing noise.

Each gasket in the set is crafted by E-Gaultra with an emphasis on durability and fitment accuracy. The materials used resist heat and corrosion, which prolongs the life of the gasket in harsh operating conditions. This prevents common issues like exhaust leaks and misfires, contributing to smoother engine performance.

The gasket kit replaces several OEM parts (1045986, 1045985, 1045987), streamlining your search for compatible components. While designed to fit a broad range of Dodge Cummins engines, confirming your engine model prior to purchase is recommended to ensure compatibility.

The product also benefits from accessible customer support for any inquiries during installation or use.

Entry-level users will find the kit affordable and simple enough to install without specialized tools. Experienced users appreciate the fit and function that help sustain engine efficiency. Compared to some aftermarket options, its adherence to original specifications helps maintain proper engine management and emissions control.

Compared to some aftermarket options, its adherence to original specifications helps maintain proper engine management and emissions control.

Pros

• Compatible with a broad range of Dodge Cummins 24-Valve engines from 1998 to 2019
• Durable materials designed to resist heat and corrosion
• Includes a complete set of six gaskets for thorough manifold sealing

Cons

• Reported fitment issues by some users on specific engine models

Overall, the 1045986 Exhaust Manifold Gaskets Kit offers a solid option for those doing routine maintenance or addressing exhaust leaks on compatible Cummins engines. Its original equipment replacements and material quality provide reliable sealing, helping maintain engine performance. Always verify engine compatibility to ensure proper fitment and avoid installation issues.

14. Exhaust Manifold Stainless Stud Kit for 1989-19 5.9l & 6.7l

Upgrade your 9L or

The Exhaust Manifold Stainless Stud Kit by KB Diesel Performance ensures a secure, long-lasting connection that stands up to rigorous use.

Designed specifically for models spanning 1989 through 2019, this kit offers a perfect replacement set of studs made from stainless steel. It delivers corrosion resistance and strength, providing peace of mind for those maintaining or restoring their diesel engine’s exhaust system.

The kit includes all necessary stainless steel studs engineered for a precise fit on 9L and

7L Cummins engines. Installation is straightforward, making maintenance quicker and less stressful. Strong material quality minimizes the risk of breakage during assembly or operation.

Thanks to corrosion-resistant components, this stud kit withstands extreme temperatures and exposure to exhaust gases. It is an excellent option for owners seeking durable and dependable manifold mounting hardware.

Ideal for mechanics and diesel enthusiasts who demand quality parts, it balances comfort during installation with long-term use stability. Replacement studs reduce exhaust leaks caused by worn or damaged fasteners, improving overall engine performance and efficiency.

Pros

• High-grade stainless steel offers excellent corrosion resistance
• Precise fit for 1989–2019 5.9L and 6.7L Cummins engines
• Includes full kit necessary for manifold stud replacement

Cons

• One user reported a threading issue with a single stud

Overall, this stud kit provides a cost-effective and sturdy solution to maintain the integrity of the exhaust manifold connection. KB Diesel Performance’s commitment to quality helps prevent common hardware failures in diesel engines.

Whether replacing worn studs or upgrading for better resistance, this kit fits the bill efficiently.

15. 3901448 12PCS Exhaust Manifold Hexagonal Flange Bolts Compatible With Cummins

Upgrade your Cummins diesel engine’s performance with the 3901448 12PCS Exhaust Manifold Hexagonal Flange Bolts. These bolts provide a reliable and secure connection, designed specifically for compatibility with essential Cummins engine models.

Perfectly matching the specifications for engines ranging from 9L to 7L, these bolts ensure a seamless fit.

Whether you’re maintaining a Freightliner truck or a Cummins-powered vehicle, this set addresses the need for quality fastening hardware. Their precision-machined finish supports consistent performance over time.

These flange bolts suit a variety of Cummins diesel engines, including ISL, ISC, and ISLG series, making them a versatile choice. The package contains 12 bolts with dimensions M10 x 5 x 65 mm, each crafted to meet

5 x 65 mm, each crafted to meet 9 strength class standards. This ensures robust clamping force, which minimizes the risk of engine leaks or loosening under vibration.

Constructed from durable materials, the bolts offer excellent resistance against corrosion and wear. This longevity prevents frequent replacements, saving maintenance costs and downtime. Their machined exterior finish guarantees smooth installation and optimal flange contact, which is important for maintaining engine integrity.

Installing these bolts is straightforward, with a design that fits existing factory specifications. They are ideal for mechanics or vehicle owners seeking dependable exhaust manifold hardware that can endure intense operating environments.

Pros

• Compatible with multiple Cummins diesel engine models (5.9L, 6.7L, ISL, ISC, ISLG).
• Durable construction with 10.9 class flanged hex bolts for superior strength.
• Precision-machined finish ensures easy installation and secure sealing.

Cons

• The set includes only bolts; gaskets or additional hardware must be sourced separately.

For those seeking dependable exhaust manifold bolts to maintain Cummins diesel engines, this set stands out through its tailored design and solid durability. The compatibility with both Cummins and Freightliner trucks positions it as a practical replacement choice.

Top 6.7 Cummins Exhaust Manifolds Buying Guide 2024

Engine compatibility

Choosing the right exhaust manifold involves understanding how it will align with various 7 Cummins engine models, including both standard and modified versions. Compatibility plays a significant role because a good match helps maintain the integrity of the engine’s performance while supporting any upgrades that may have been made.

Compatibility plays a significant role because a good match helps maintain the integrity of the engine’s performance while supporting any upgrades that may have been made. Exhaust manifolds designed to fit these engines typically enhance the flow of exhaust gases, which can improve overall engine efficiency and responsiveness. Selecting a manifold that suits the specific setup not only ensures a proper fit but can also contribute to better fuel economy and increased power output.

When making a purchase, pay attention to the materials used, ease of installation, and whether the design helps reduce back pressure, as these factors directly impact how well the component integrates with the engine and improves its functionality.

Material and build quality

When selecting a manifold for a 7 Cummins engine, considering how the construction material affects performance and longevity is key.

On the other hand, stainless steel options provide a strong resistance to corrosion and rust, making them suitable for environments exposed to moisture and road salt. The durability of the manifold is closely tied to its ability to withstand constant thermal cycling, so a well-built, robust design can help prevent cracks and warping over time.

Paying attention to features that reduce oxidation or apply protective coatings contributes to extending the manifold’s service life. Selecting a manifold with appropriate thermal resistance and corrosion defenses not only supports reliable engine performance but also reduces the need for premature replacements or repairs, balancing quality with value for those using the 7 Cummins engine in various driving conditions.

7 Cummins engine in various driving conditions.

Heat management

When choosing an exhaust manifold, consideration of how it handles heat plays a significant role in maintaining engine performance and longevity. Many manifolds come with heat shielding or insulation options that help reduce the amount of heat radiated into the engine bay, which can protect surrounding components from excessive temperatures. This reduction in engine bay heat can improve overall vehicle reliability and comfort during operation.

This reduction in engine bay heat can improve overall vehicle reliability and comfort during operation. Some designs incorporate ceramic coatings or wrapped materials to serve as barriers, helping to contain the heat within the exhaust gases. Depending on the level of heat insulation provided, there may be less need for adding extra cooling components such as fans or heat exchangers, simplifying the installation and maintenance process.

Taking these factors into account can help in selecting a manifold that not only fits mechanical needs but also contributes positively to managing the thermal environment under the hood.

Installation and fitment

When choosing a manifold for a 7 Cummins engine, paying attention to ease of installation can save a lot of time and effort.

Opting for a design that closely matches the original mounting points and bolt patterns will reduce the need for extensive modifications, allowing it to fit smoothly into the existing setup. Compatibility with other components of the exhaust system such as downpipes, gaskets, and sensors enhances overall performance and prevents potential issues during assembly. It helps to look for products that come with clear installation instructions along with all the necessary hardware like bolts and seals, which makes the process more straightforward for those new to working on diesel engines.

This thoughtful approach to choosing a manifold not only streamlines the upgrade but also maintains the integrity of the truck’s exhaust flow and emissions controls.

Design and performance features

Choosing the right exhaust manifold involves understanding how tube diameter and flow dynamics influence engine performance. Larger tube diameters generally allow for improved exhaust gas flow, reducing backpressure and supporting better engine breathing.

The distinction between long tube and short tube header designs plays a part in determining how efficiently exhaust gases are scavenged from the cylinders. Long tube headers tend to enhance exhaust scavenging by allowing smoother, more separated gas pulses, which can contribute to increased power and enhanced turbo response. Short tube headers offer a more compact fit and often improve low-end torque by promoting quicker turbo spool-up.

Considering how these design choices affect the interaction of exhaust pulses and the resulting pressure waves is key to matching the manifold to your engine’s desired characteristics and usage scenarios. Understanding these dynamics helps in selecting a manifold that complements specific power goals and driving conditions.

Price and warranty

Selecting the right exhaust manifold for a 7 Cummins engine involves balancing several factors beyond mere cost. Understanding the price range for available options can help set realistic expectations, as manifolds vary depending on materials and construction quality.

Considering the length and type of manufacturer support, including how defects and replacements are handled, offers insight into the reliability of both the product and the company behind it. It’s beneficial to focus on features that enhance durability, such as robust materials and corrosion resistance, ensuring longer service life and dependable performance.

Matching these qualities with your specific use cases, whether for daily driving or heavy-duty applications, can optimize value. Ultimately, a choice that aligns well with your operational needs while providing sturdy construction and strong backing from the manufacturer tends to offer the most satisfying long-term investment.

Frquently Asked Questions

How Does An Aftermarket Exhaust Manifold Improve The Performance Of A 6.7 Cummins?

An aftermarket exhaust manifold for a 6.7 Cummins improves performance by enhancing exhaust flow efficiency. Unlike the stock manifold, which can cause restrictions and backpressure, aftermarket versions are designed with smoother bends and larger diameter tubing. This optimized flow reduces engine strain and allows exhaust gases to exit more quickly, improving combustion efficiency. As a result, the engine can breathe better, leading to increased horsepower and torque. Additionally, better exhaust scavenging can improve turbo spool times, providing quicker throttle response and enhanced overall performance.

Are There Any Budget-Friendly Exhaust Manifold Options For The 6.7 Cummins That Still Offer Good Performance?

Yes, there are budget-friendly exhaust manifold options for the 6.7 Cummins that still provide good performance. Companies like Banks Power and BD Diesel offer affordable manifolds that improve exhaust flow and turbo spool without breaking the bank. These options often use durable materials and engineered designs to enhance power and efficiency compared to the stock manifold. While they may not match the performance of high-end, fully stainless steel aftermarket manifolds, these budget options strike a good balance between cost and gains. They are ideal for daily drivers or mild performance enthusiasts looking to upgrade without spending excessively.

How Difficult Is It To Install An Upgraded Exhaust Manifold On A 6.7 Cummins Truck?

Installing an upgraded exhaust manifold on a 6.7 Cummins truck can be moderately challenging, especially for those without extensive mechanical experience. The process involves working around tight engine spaces, dealing with rusted or seized bolts, and ensuring proper gasket placement to avoid leaks. Having the right tools, such as penetrating oil, torque wrenches, and possibly a lift, can make the job smoother. Additionally, careful attention must be paid to the manifold’s alignment and connection to the turbocharger and exhaust system. While the upgrade can improve performance and sound, patience and mechanical know-how are essential to avoid damage and ensure a successful installation.

What Are The Top-Rated Exhaust Manifolds For A 6.7 Cummins Engine?

The top-rated exhaust manifolds for a 6.7 Cummins engine are typically from brands like Banks Power, MBRP, and BD Diesel. Banks Power is well-known for its high-quality stainless steel manifolds that improve exhaust flow and boost engine performance. MBRP offers durable, performance-oriented manifolds with a focus on heat management and sound optimization. BD Diesel also provides heavy-duty manifolds designed to enhance power and torque while ensuring longevity. These brands are favored by enthusiasts for their combination of performance gains, reliability, and fitment precision, making them excellent choices for upgrading a 6.7 Cummins exhaust system.

What Materials Are Best For Exhaust Manifolds On A 6.7 Cummins For Durability And Heat Resistance?

For a 6.7 Cummins engine, exhaust manifolds made from high-grade stainless steel are ideal due to their excellent durability and superior heat resistance. Stainless steel can withstand the extreme temperatures produced during engine operation without warping or cracking, ensuring long-lasting performance. Additionally, stainless steel resists corrosion, which is crucial given the exposure to exhaust gases and environmental conditions. Another popular material is cast iron, known for its robustness and ability to handle high heat. While heavier than stainless steel, cast iron manifolds are less expensive and provide good thermal mass, helping to evenly distribute heat and reduce thermal stress. Ultimately, stainless steel and cast iron are the top choices for reliable exhaust manifolds on a 6.7 Cummins.

Conclusion

Choosing the best exhaust manifold for 7 Cummins largely depends on your specific needs, such as performance gains, durability, and budget. High-quality options often offer improved exhaust flow and reduced engine heat, which can enhance power and efficiency.

However, some manifolds may require adjustments or additional parts for a perfect fit, potentially increasing installation time and cost. Those seeking reliable improvements for towing, hauling, or daily driving will find many suitable choices within this category.

While no single product is flawless, balancing the benefits against potential drawbacks will help you select the right manifold that complements your vehicle’s performance goals. The best exhaust manifold for

7 Cummins ultimately provides a solid upgrade for those aiming to enhance engine output without compromising reliability.