Looking for the best diesel fuel system kit to boost your engine’s performance? Our top-rated kits, like the Archoil Diesel Fuel System Kit and Lang Tools, deliver deep cleaning, lasting protection, and proven results for smoother starts, fewer repairs, and cleaner emissions.
Diesel engines demand precision. A clean fuel system boosts power, efficiency, and engine life. The right additives and kits deliver both.
The Archoil Diesel Fuel System Kit tackles grime with deep cleaning and lasting protection. Lang Tools and Fuel Tank Sump Kits ensure durability and smooth performance.
Drivers report smoother starts, fewer repairs, and cleaner emissions. Trust this guide to pick the perfect kit for your diesel engine’s needs.
List of Top 10 Diesel Fuel System Kit
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Archoil Diesel Fuel System Kit – AR6400-D (12 oz) + AR6500 (40 oz) – Complete Restoration For All Diesel Engines, Injector Cleaner, Lubricity Improver, DPF & Turbo Deposit Control, Cetane Booster |
This Archoil Diesel Fuel System Kit is perfect for diesel vehicle owners who want to keep their engines running smoothly. It’s great for anyone with a diesel car, truck, or equipment looking to clean injectors, boost performance, and protect their fuel system. |
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Archoil Ultimate Diesel Kit – AR9100 Friction Modifier (16oz) + AR6500 Diesel Treatment (40oz) + AR6400-D Diesel Fuel System Cleaner (12oz) |
Diesel vehicle owners seeking smooth performance and long-term protection will love this kit. It’s a three-step system to clean, maintain, and protect engines—no tools needed. Perfect for modern diesel engines, including high-pressure systems. |
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Lang Tools TU-32-4 Ford Power Stroke Diesel Fuel System Kit, One Size |
This Lang Tools TU-32-4 Ford Power Stroke Diesel Fuel System Kit is a must-have for any Ford Power Stroke diesel owner who wants to maintain their vehicle’s fuel system with top-quality parts. |
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Fuel Tank Sump Kit for Diesel Truck Airdog Fass, Fuel Sump Kit for Diesel Fuels Tank with Integrated Return & Hole Saw Includes 1/2″ Fittings, Compatible with Cummins/Duramax/Powerstroke, Diesels Kit |
This diesel truck fuel tank sump kit is perfect for Cummins, Duramax, and Powerstroke owners looking to upgrade their fuel system. It’s designed for seamless integration with Airdog and Fass systems, making it a must-have for diesel enthusiasts seeking improved fuel efficiency and reduced air in their fuel. |
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Archoil AR6400-D Diesel Fuel System Cleaner (12 oz) Deep Clean – Injector Cleaner, Turbo & DPF Deposit Control |
This powerful diesel fuel system cleaner is perfect for diesel vehicle owners who want to restore their engine’s performance and prevent costly repairs. If you’re experiencing rough running, poor acceleration, or reduced fuel efficiency, this cleaner is your quick and easy solution. |
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Hot Shot’s Secret Everyday Diesel Treatment EDT 16 oz Squeeze – Treats 400 Gallons – 6-in-1 Diesel Fuel Additive, Injector and Fuel System Cleaner, Boosts Cetane |
This 6-in-1 diesel fuel additive is perfect for diesel drivers who want to keep their engine in top shape. It’s easy to use and saves money by boosting fuel economy and preventing costly repairs. |
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SMALLFATW Diesel Fuel Tank Sump Kit Dual-Port Integrated Return Compatible with Airdog FASS Cummins Duramax Powerstroke |
This SMALLFATW Diesel Fuel Tank Sump Kit is perfect for Cummins, Duramax, and Powerstroke owners who want to eliminate low-fuel issues and boost fuel flow. It’s a simple, effective upgrade for anyone running Airdog or FASS fuel pumps. |
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RDS MFG INC 11025 Diesel Install Kit |
Vehicle owners needing extra fuel capacity for diesel engines will benefit. The kit includes tanks in various sizes and allows gasoline auxiliary fueling with an electric fuel pump. |
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Auxiliary Fuel Tank Install Kit Diesel Installation Kit Compatible With 1999-2024 Ford 1999-2012 Dodge 2011-2022 Chevy/GMC, Gravity Fueled Auxiliary Fuel Tank With 1 1/2″ Fill Line Replace# 11025 |
This Auxiliary Fuel Tank Install Kit is perfect for Ford, Dodge, and Chevy/GMC diesel truck owners who want a stable, gravity-fed fuel supply. It’s designed for easy installation and ensures your engine gets the fuel it needs, smoothly and reliably. |
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Verdanzia 2 Set 6M Diesel Heater Fuel Line Kit, Fuel Tank Hose Clip Kit with Fuel Filter, Fuel Line Clamps and Connecting Hoses, Diesel Heater Accessories for Replace 1320399a 35320a |
This kit is perfect for vehicle owners and DIYers working on diesel heaters that need part numbers 1320399A or 35320A. It offers a complete set of fuel lines, clamps, hoses, and filters to save time, ensure secure connections, and keep heaters running reliably. |
Detailed Reviews
Discover the top 10 Diesel Fuel System Kits handpicked for performance and value. Each kit is expert-reviewed and backed by customer feedback, ensuring you find the perfect match for your diesel engine. Whether you need deep cleaning, ongoing protection, or enhanced fuel efficiency, this guide has you covered.
1. Archoil Diesel Fuel System Kit – AR6400-D (12 oz) + AR6500 (40 oz) – Complete Restoration For All Diesel Engines, Injector Cleaner, Lubricity Improver, DPF & Turbo Deposit Control, Cetane Booster

The Archoil Diesel Fuel System Kit includes two products: AR6400-D for deep cleaning and AR6500 for ongoing protection. AR6400-D cleans injectors, restores engine response, and improves fuel efficiency. AR6500 boosts cetane, supports DPF systems, and keeps turbos clean.
This kit works for all diesel engines, including modern HPCR systems. It reduces emissions, lowers regen frequency, and protects fuel pumps with improved lubricity.
| Pros | Cons |
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Perfect For:
This Archoil Diesel Fuel System Kit is perfect for diesel vehicle owners who want to keep their engines running smoothly. It’s great for anyone with a diesel car, truck, or equipment looking to clean injectors, boost performance, and protect their fuel system.
Ready to Purchase?
2. Archoil Ultimate Diesel Kit – AR9100 Friction Modifier (16oz) + AR6500 Diesel Treatment (40oz) + AR6400-D Diesel Fuel System Cleaner (12oz)

The Archoil Ultimate Diesel Kit includes three powerful products: AR6400-D Diesel Fuel System Cleaner, AR6500 Diesel Treatment, and AR9100 Friction Modifier. These products work together to clean, maintain, and protect your diesel engine.
Start with the AR6400-D to clean the fuel system. Use AR6500 at each fill-up. Add AR9100 to the oil at your next oil change for smoother operation.
| Pros | Cons |
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Perfect For:
Diesel vehicle owners seeking smooth performance and long-term protection will love this kit. It’s a three-step system to clean, maintain, and protect engines—no tools needed. Perfect for modern diesel engines, including high-pressure systems.
Ready to Purchase?
3. Lang Tools TU-32-4 Ford Power Stroke Diesel Fuel System Kit, One Size

Keep your Ford Power Stroke Diesel running smoothly with the Lang Tools TU-32-4 Fuel System Kit. This essential auto accessory is built for durability and performance. It’s a must-have for any diesel owner.
This kit is designed for easy installation. Get your vehicle back on the road quickly.
Made in the United States, this kit ensures top quality. Trust Lang Tools for your diesel fuel system needs.
| Pros | Cons |
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Perfect For:
This Lang Tools TU-32-4 Ford Power Stroke Diesel Fuel System Kit is a must-have for any Ford Power Stroke diesel owner who wants to maintain their vehicle’s fuel system with top-quality parts.
Ready to Purchase?
4. Fuel Tank Sump Kit for Diesel Truck Airdog Fass, Fuel Sump Kit for Diesel Fuels Tank with Integrated Return & Hole Saw Includes 1/2″ Fittings, Compatible with Cummins/Duramax/Powerstroke, Diesels Kit

Upgrade your diesel truck’s fuel system with this Fuel Tank Sump Kit. It works perfectly with Airdog and Fass systems. The kit includes everything for easy installation.
It’s compatible with Cummins, Duramax, and Powerstroke engines. The integrated return feature boosts performance. This kit is a must-have for diesel enthusiasts.
The durable design handles tough conditions. It comes with a hole saw and 1/2″ fittings. Improve fuel efficiency and reduce air in your system today.
| Pros | Cons |
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Perfect For:
This diesel truck fuel tank sump kit is perfect for Cummins, Duramax, and Powerstroke owners looking to upgrade their fuel system. It’s designed for seamless integration with Airdog and Fass systems, making it a must-have for diesel enthusiasts seeking improved fuel efficiency and reduced air in their fuel.
Ready to Purchase?
5. Archoil AR6400-D Diesel Fuel System Cleaner (12 oz) Deep Clean – Injector Cleaner, Turbo & DPF Deposit Control

Archoil AR6400-D is a powerful diesel cleaner that fights tough deposits. Just pour it into your fuel tank and drive—one bottle treats 30-40 gallons. It works fast to deep-clean injectors, turbo, and DPF systems.
This cleaner boosts engine performance by restoring smooth fuel flow and reducing harmful buildup. For lasting results, pair it with Archoil AR6500 at every fill-up.
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Perfect For:
This powerful diesel fuel system cleaner is perfect for diesel vehicle owners who want to restore their engine’s performance and prevent costly repairs. If you’re experiencing rough running, poor acceleration, or reduced fuel efficiency, this cleaner is your quick and easy solution.
Ready to Purchase?
6. Hot Shot’s Secret Everyday Diesel Treatment EDT 16 oz Squeeze – Treats 400 Gallons – 6-in-1 Diesel Fuel Additive, Injector and Fuel System Cleaner, Boosts Cetane

Keep your diesel engine running smoothly with Hot Shot’s Secret Everyday Diesel Treatment. This 6-in-1 additive cleans injectors, boosts cetane, and prevents rust. It’s the easy way to maintain your engine’s health.
Simply add it at every fill-up for better fuel economy and reduced maintenance. Your engine will thank you!
| Pros | Cons |
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Perfect For:
This 6-in-1 diesel fuel additive is perfect for diesel drivers who want to keep their engine in top shape. It’s easy to use and saves money by boosting fuel economy and preventing costly repairs.
Ready to Purchase?
7. SMALLFATW Diesel Fuel Tank Sump Kit Dual-Port Integrated Return Compatible with Airdog FASS Cummins Duramax Powerstroke

This SMALLFATW Diesel Fuel Tank Sump Kit works with Airdog, FASS, Cummins, Duramax, and Powerstroke fuel pumps. It’s built from strong aluminum with a rustproof finish and includes four brass fittings. The kit solves low-fuel issues at 1/4 tank and boosts fuel flow.
The dual-ports design allows return line setups or double fuel feeds for better performance. It’s easy to mount on any flat tank surface, plastic or metal, gas or diesel.
| Pros | Cons |
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Perfect For:
This SMALLFATW Diesel Fuel Tank Sump Kit is perfect for Cummins, Duramax, and Powerstroke owners who want to eliminate low-fuel issues and boost fuel flow. It’s a simple, effective upgrade for anyone running Airdog or FASS fuel pumps.
Ready to Purchase?
8. RDS MFG INC 11025 Diesel Install Kit

The RDS MFG INC 11025 Diesel Install Kit is a motor engine fuel tank designed for various needs. It comes with a range of tank sizes to match your specifications.
This kit is easy to use. It allows gasoline auxiliary fueling. The tank is simple to install.
| Pros | Cons |
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Perfect For:
Vehicle owners needing extra fuel capacity for diesel engines will benefit. The kit includes tanks in various sizes and allows gasoline auxiliary fueling with an electric fuel pump.
Ready to Purchase?
9. Auxiliary Fuel Tank Install Kit Diesel Installation Kit Compatible With 1999-2024 Ford 1999-2012 Dodge 2011-2022 Chevy/GMC, Gravity Fueled Auxiliary Fuel Tank With 1 1/2″ Fill Line Replace# 11025

This auxiliary fuel tank install kit uses high-quality aluminum & rubber to resist rust and last long. It works with diesel engines in 1999-2024 Ford, 2011-2022 Chevy/GMC, and 1999-2012 Dodge models. The 1 1/2″ fill line ensures steady fuel flow and easy setup.
Always close the fuel tank valve with a tool during install to prevent spills. The package has 1-set kit with OE part numbers 11025/011025 for exact fits.
| Pros | Cons |
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Perfect For:
This Auxiliary Fuel Tank Install Kit is perfect for Ford, Dodge, and Chevy/GMC diesel truck owners who want a stable, gravity-fed fuel supply. It’s designed for easy installation and ensures your engine gets the fuel it needs, smoothly and reliably.
Ready to Purchase?
10. Verdanzia 2 Set 6M Diesel Heater Fuel Line Kit, Fuel Tank Hose Clip Kit with Fuel Filter, Fuel Line Clamps and Connecting Hoses, Diesel Heater Accessories for Replace 1320399a 35320a

The Verdanzia 2 Set 6M Diesel Heater Fuel Line Kit includes all parts for diesel heater repairs. It has 2 fuel lines, 10 connecting hoses, 20 clamps, and 2 fuel filters. This kit saves time and ensures reliable fixes for fuel line issues.
Each 6-meter fuel line has a 2.5mm inner diameter for smooth fuel flow. Stainless steel clamps (9-11mm range) and durable hoses secure connections. It fits systems needing OEM parts 1320399A and 35320A.
Follow simple steps: attach hoses, link filters, and secure clamps. Always depressurize before work. This kit boosts heater efficiency and prevents leaks. It keeps your system running safely and smoothly.
| Pros | Cons |
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Perfect For:
This kit is perfect for vehicle owners and DIYers working on diesel heaters that need part numbers 1320399A or 35320A. It offers a complete set of fuel lines, clamps, hoses, and filters to save time, ensure secure connections, and keep heaters running reliably.
Ready to Purchase?
Buying Guide
Diesel engines need precision. A clean fuel system boosts power, efficiency, and longevity. The right kits ensure smooth performance and fewer repairs.
- Engine Compatibility: Match the kit to your diesel engine type, like HPCR, Cummins, or Ford Power Stroke. Some kits work for all diesel engines, while others target specific models.
- Cleaning Power: Look for deep-cleaning additives that tackle injectors, turbos, and DPF systems. Products like AR6400-D remove grime and restore fuel flow fast.
- Protection Features: Choose kits with lubricity boosters and cetane improvers. These reduce wear, lower emissions, and protect fuel pumps for long-term health.
- Ease of Installation: Opt for kits designed for quick setup, like pre-sized fittings or tools included. Fuel Tank Sump Kits with hole saws save time and effort.
- Value and Versatility: Consider multi-use kits like the Ultimate Diesel Kit with AR9100 for friction control. Combining cleaning, maintenance, and oil additives maximizes savings.
- Durability: Pick kits made in the USA with rustproof materials like aluminum or brass. Durable designs handle tough conditions and last longer.
- User Experience: Drivers report smoother starts and fewer regens with regular use. Pair additives like Hot Shot’s EDT with deep cleaners for best results.