Your Chevy GMC Duramax’s fuel injection system is central to the vehicle’s performance, so it’s best to keep it in good condition. Norcal Diesel Performance is on hand with a range of maintenance supplies like DPF Clean Dynomite Diesel and Justice Brothers Diesel Fuel Supplement, which are designed to keep your fuel system in top shape. Proper maintenance can significantly extend the life of your 6.6L L5P Fuel System, but parts will still eventually fail. Luckily, we have a wide range of reliable components you can use to get your fuel system back in working order. That’s everything from replacement fuel tanks to more complex parts like the Alliant Power Reman Common Rail Injector GM L5P 17-22.
Browse 6.6L L5P Fuel System & Components Products
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ALLIANT POWER AP54821 2019-2023 L5D CHEVY INTERNATIONAL Reman (FUEL CONTAMINATION KIT)New843497107773
ALLIANT POWER AP54821 2019-2023 L5D CHEVY 4500HD, 5500HD, 6500HD, INTERNATIONAL Reman (FUEL CONTAMINATION KIT)
FITS MEDIUM DUTY 4500HD, 5500HD AND 6500HD L5D TRUCKS ONLY
Dynomite DCR Pump Conversion Kit for 2017–2022 L5P DuramaxNew
Protect your 2017–2022 L5P Duramax from costly HP4 pump failures with the Dynomite Diesel DCR Pump Conversion Kit, now available at NorCal Diesel Performance. This kit upgrades the factory D...
Direct‑fit fuel injector connector repair kit with 16 gauge grey wire pigtails for GM 6.6L LML/L5P and 3.0L LM2/LZ0 Duramax applications.
Set of 8 connectors with approximately 4....
Lowers pour point of Diesel Fuel as much as 35° F
Disperses Water
Lubricates Rotary Pumps
Lowers Cloud Point
Prevents Filter Icing & Wax Formation
Improves Cold-Weathe...
S&B Tanks 62 Gallon Fuel Tank for 2011-2021 Duramax Crew Cab Short BedNew841372040627
Fits 2011-2021 Chevy / GMC 2500 / 3500 Crew Cab Short Bed Duramax Diesel
Save Time. Go Further. Get More Out of Your Truck. Being stuck with the OEM 36 gallon tank isn't fair. You spend more...
The Stanadyne 608990 is a premium high-pressure fuel pump conversion kit designed for 2017-2025 L5P Duramax engines. It replaces the factory Denso HP4 with a proven Stanadyne DCR (Denso Common R...
Titan 56 Gal Fuel Tank for 2020 GMC 2500 & 3500 Crew Cab, Short Bed L5P (7010220)New848135000331
56 Gallon*, extra capacity, extra heavy duty, midship replacement fuel tank for 2017-2019 GM 2500HD and 3500HD pickups with Crew Cabs, 6 ½ ft. beds, and Duramax diesel L5P engines.
For model y...
Titan 60 Gallon Fuel Tank for 2020-2021 GM 2500 & 3500 Crew Cab, Long BedNew848135001703
60 Gallon*, extra capacity, extra heavy duty, midship replacement fuel tank for 2020-2021 GM 2500HD and 3500HD pickups with Crew Cabs, Long Beds, and Duramax diesel engines.
For model years 2020+.
Each new generation of engine is more capable than the last, but not every engine that goes out is as powerful as it could be. Even the new L5P Duramax engine needs some extra work if you want to get the most horsepower and torque out of it. At Norcal Diesel Performance, we can help you with our 2020–2021 L5P fuel system parts. We have everything you’ll need to get the most out of this engine.
We have the standard L5P fuel system parts you want, like a rail injection system cleaner, but we also have L5P fuel pump parts. And if you want more out of your fuel, consider some L5P Duramax fuel additives. The engine itself is high-quality, but if you want to take things to the next level, you can work with us at Norcal Diesel Performance!
2020–2021 L5P Fuel System
Each new generation of engine is more capable than the last, but not every engine that goes out is as powerful as it could be. Even the new L5P Duramax engine needs some extra work if you want to get the most horsepower and torque out of it. At Norcal Diesel Performance, we can help you with our 2020–2021 L5P fuel system parts. We have everything you’ll need to get the most out of this engine.
We have the standard L5P fuel system parts you want, like a rail injection system cleaner, but we also have L5P fuel pump parts. And if you want more out of your fuel, consider some L5P Duramax fuel additives. The engine itself is high-quality, but if you want to take things to the next level, you can work with us at Norcal Diesel Performance!