Best Delete Kit Options for 6.7 Cummins Diesel Engines

So, you’re looking to upgrade your 6.7 Cummins? I’ve been wrenching on these engines for years, and let me tell you, the aftermarket options can be overwhelming. This guide cuts through the noise, offering a detailed look at ten different delete kit options—from fuel filter bypasses to cold air intakes—and helping you choose the right one for your needs and budget. We’ll explore their features, pros, cons, and real-world performance to give you the information you need to make a confident purchase.

IMAGE	PRODUCT NAME	AMAZON LINK
	New Fuel Filter Delete Tool Bypass Removal Kit for…	View on Amazon
	Doc’s Diesel Filter Combo Kit DGF430+DGF401+DPA6314+D5335 |…	View on Amazon
	Coolant Bypass Kit Compatible with Dodge Ram 6.7L…	View on Amazon
	Deecaray Fuel Filter Delete Tool, Fuel Filter Bypass Kit,…	View on Amazon
	Fuel Filter Delete Tool, Bypass Removal Kit for 2003-2009…	View on Amazon
	RJSPHH Fuel Filter Delete Fuel Filter Bypass Kit Compatible…	View on Amazon
	Fleece Performance Engineering FPE-FFD-RO-4G Fuel Filter…	View on Amazon
	4-Inch Cold Air Intake Kit with Filter Compatible with…	View on Amazon
	iDeretool 18MM Common Rail Fuel Injector Block-Off Tool M18…	View on Amazon
	6.7 Cold Air Intake Kit Fits for Dodge Ram 2500…	View on Amazon

1. New Fuel Filter Delete Tool Bypass Removal Kit for 2003-2009 Dodge Ram Cummins

This kit promises improved fuel flow by eliminating the factory fuel filter. It’s a simple, straightforward design that’s easy to install for those familiar with basic engine work.

• Key Features: Designed for 2003-2009 Dodge Ram 5.9L and 6.7L Cummins; Uses factory fuel return lines; Includes WIF sensor port; Billet aluminum construction.
• Pros: Relatively inexpensive; Simple installation; Improves fuel flow.
• Cons: Only addresses fuel filter; May void warranty; Limited compatibility.
• User Feedback Summary: Mostly positive reviews praising ease of installation and noticeable improvement in fuel flow. Some users reported minor leaks initially, resolved with proper sealing.
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2. Doc’s Diesel Filter Combo Kit DGF430+DGF401+DPA6314+D5335

Instead of a single delete, this is a complete filter replacement kit. It’s a good option for those looking to improve overall engine health and performance with high-quality filters.

• Key Features: Includes fuel/water separator, fuel filter, oil filter, and air filter; Compatible with 2019-2024 Ram 6.7L Cummins; Third-party tested for efficiency.
• Pros: Convenient all-in-one kit; High-quality filters; Improves overall engine efficiency.
• Cons: More expensive than individual filter replacements; Doesn’t include any “delete” functionality, it is a replacement kit.
• User Feedback Summary: Users consistently praise the quality of the filters and the convenience of the combo kit. Some found the price point a bit high, but many felt it was worth it for the long-term benefits.
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3. Coolant Bypass Kit Compatible with Dodge Ram 6.7L Cummins

This kit addresses a common issue with 6.7 Cummins engines: inconsistent coolant flow, particularly to the rear cylinders.

• Key Features: Improves coolant flow to rear cylinders; Prevents overheating; Made from high-quality aluminum and steel; Compatible with 2003-2018 Dodge Ram 5.9L and 6.7L Cummins.
• Pros: Addresses a critical cooling issue; Potentially prevents engine damage; Relatively easy installation.
• Cons: Can be costly; May require some mechanical knowledge to install correctly.
• User Feedback Summary: Users who experienced overheating issues reported significant improvements after installing this kit. Installation difficulty varied based on user experience.
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4. Deecaray Fuel Filter Delete Tool, Fuel Filter Bypass Kit

Similar to the first product, this fuel filter bypass kit focuses on improving fuel flow by removing the restrictive factory filter.

• Key Features: Compatible with 2003-2009 Dodge Ram 5.9L and 6.7L Cummins; Includes WIF sensor port; CNC-machined billet aluminum construction.
• Pros: Relatively inexpensive; Simple design; Improves fuel flow.
• Cons: Only addresses fuel filter; May void warranty; Similar to other fuel filter deletes.
• User Feedback Summary: Generally positive reviews, echoing the pros and cons of similar fuel filter delete kits. Some users reported needing to modify the kit slightly for a perfect fit.
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5. Fuel Filter Delete Tool, Bypass Removal Kit for 2003-2009 Dodge Ram Cummins

Another fuel filter delete option, this one emphasizes ease of installation.

• Key Features: Compatible with 2003-2009 Dodge Ram 5.9L and 6.7L Cummins; Simple design; Tool-free or minimal-tool installation.
• Pros: Inexpensive; Easy installation.
• Cons: Only addresses fuel filter; May void warranty; Basic design with no extra features.
• User Feedback Summary: Reviews are mixed, with some praising the ease of installation while others experienced minor fitment issues.
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6. RJSPHH Fuel Filter Delete Fuel Filter Bypass Kit

This fuel filter delete kit offers a similar function to others on this list but has a simpler, less featured design.

• Key Features: Compatible with 2003-2009 Dodge Ram 5.9L and 6.7L Cummins; Includes WIF sensor port; Uses factory fuel return lines.
• Pros: Inexpensive; Simple design; Improves fuel flow.
• Cons: Only addresses fuel filter; May void warranty; Lacks some features of higher-end kits.
• User Feedback Summary: Reviews are generally positive for basic functionality but lack the detailed feedback of more popular options.
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7. Fleece Performance Engineering FPE-FFD-RO-4G Fuel Filter Delete

Fleece Performance is a known name in the Cummins community, offering a higher-quality fuel filter delete.

• Key Features: Compatible with 2010-2018 Dodge Ram 6.7L Cummins; Uses factory fuel return lines; Includes WIF sensor port; High-quality construction.
• Pros: High-quality construction; Good fit and finish; Reliable performance.
• Cons: More expensive than other fuel filter deletes; Limited compatibility.
• User Feedback Summary: Users consistently praise the quality and performance of this kit, noting its superior build compared to budget options.
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8. 4-Inch Cold Air Intake Kit with Filter

This kit focuses on improving air intake, potentially boosting horsepower and throttle response.

• Key Features: Compatible with 2007.5-2012 Dodge Ram 6.7L Cummins; 4-inch diameter intake; Aluminum alloy and steel construction.
• Pros: Improves airflow; Potentially increases horsepower and torque; Relatively easy installation.
• Cons: May not be noticeable performance gain for all users; Limited compatibility.
• User Feedback Summary: User reviews are mixed. Some report a noticeable improvement in performance, while others see minimal gains.
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9. iDeretool 18MM Common Rail Fuel Injector Block-Off Tool

This is a specialized tool for blocking off fuel injectors, often used in conjunction with other modifications.

• Key Features: Compatible with several diesel engines, including some 6.7L Cummins; Carbon steel construction; M18 x 1.5 thread size.
• Pros: Durable construction; Useful for specific modifications.
• Cons: Not a complete delete kit; Requires specific knowledge to use correctly; Limited application on some 6.7 Cummins models.
• User Feedback Summary: Reviews are generally positive for those needing this specialized tool, but limited feedback exists for 6.7 Cummins applications specifically.
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10. 6.7 Cold Air Intake Kit Fits for Dodge Ram 2500/3500

Another cold air intake kit, similar in function to #8, but with different compatibility and potentially different performance.

• Key Features: Compatible with 2007.5-2012 Dodge Ram 6.7L Cummins; Aluminum alloy and steel construction; CNC mandrel-bent tubes.
• Pros: Improves airflow; Potentially increases horsepower and torque; Relatively easy installation.
• Cons: May not be noticeable performance gain for all users; Limited compatibility.
• User Feedback Summary: Similar to #8, the feedback is mixed, with performance gains varying by user and vehicle conditions.
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Practical Buying Advice:

Before purchasing any delete kit, carefully consider your budget, mechanical skills, and the specific needs of your truck. Some kits are simple plug-and-play, while others may require more mechanical expertise. Always check compatibility with your specific year and model of 6.7 Cummins engine. Finally, be aware that installing delete kits may void your warranty.

Final Verdict:

The “best” delete kit depends entirely on your individual needs and goals. For simple fuel flow improvements, a fuel filter delete is a budget-friendly option. For comprehensive upgrades, consider a filter combo kit. If you’re dealing with cooling issues, a coolant bypass kit is crucial. Always prioritize quality components from reputable brands, and don’t hesitate to seek professional installation if you’re uncomfortable doing it yourself.

FAQ:

Q: Will installing a delete kit void my warranty?
A: Highly likely. Modifying your engine’s emissions system almost always voids warranties.

Q: What are the potential risks of installing a delete kit?
A: Potential risks include engine damage from overheating or other issues if not installed correctly.

Q: Do I need special tools to install these kits?
A: The complexity varies by kit. Some are very simple, while others require specialized tools and mechanical knowledge.

Q: How much horsepower can I expect to gain with a delete kit?
A: Gains vary greatly depending on the specific kit and your truck’s condition. Results are not guaranteed.

Q: Can I install these kits myself, or should I hire a professional?
A: Your mechanical skills determine whether you can DIY. If you’re unsure, hire a professional to avoid potential damage.

Q: Are there any legal implications to installing delete kits?
A: Legality varies by region. Check local laws and regulations regarding emissions modifications before installing a delete kit. Some areas have strict emissions testing.

Q: What is the expected lifespan of these products?
A: Lifespan varies greatly based on usage, quality of the product, and how well it’s maintained. Consult the product documentation for specific recommendations.