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Lift pumps, CP3 and CP4 high-pressure fuel pumps, fuel rails, lines, regulators, and fuel-system kits that feed the Duramax reliably — including CP4 protection for LML and L5P trucks.
17 parts
Which high-pressure pump your engine has decides both what you buy and what you protect against. It splits cleanly at the 2011 model year.
| Generation | What it means for this part |
|---|---|
| LB7 / LLY / LBZ / LMM (2001–2010) | Bosch CP3 high-pressure pump — durable, well-supported, and the pump most CP4 conversion kits swap back to. |
| LML (2011–2016) | Bosch CP4.2. When it fails it can send metal through the entire fuel system, so a disaster-prevention kit or a CP3 conversion is the standard protective spend on these trucks. |
| L5P (2017+) | Also CP4-fed, with its own fuel filter assembly — the 2017+ filtration parts are not the same as the 2001–2016 ones. |
Not sure which engine you have? Decode it from the eighth digit of your VIN with the Duramax VIN & engine code decoder, or map your year and platform in the generations & fitment guide.
Used, OEM, and hard-to-find fuel system for the Duramax — live listings, prices set by the seller.
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4,290 owner reviews
GM Genuine Parts TP1015 (13539108) Fuel Filter Kit with Seals. Fuel-system hardware to keep the Duramax fed reliably at stock and elevated power.
528 owner reviews
Doc's Diesel Fuel Filter DGF429 | Compatible with Chevrolet/GMC 6.6L Duramax 2500HD, 3500HD 2017-2019, Chevrolet/GMC 3.0L Duramax 2500HD, 3500HD 2020+ | Replaces TP1015. Fuel-system hardware to keep the Duramax fed reliably at stock and elevated power.
17 owner reviews
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, For Cummins/Duramax/Powerstroke, Diesels Fuel Sump Kit. Fuel-system hardware to keep the Duramax fed reliably at stock and elevated power.
56 owner reviews
Sporacingrts Fuel Filter Removal Bypass Kit Compatible with Easy Maintenance - Compatible With 2001-2016 Duramax. Fuel-system hardware to keep the Duramax fed reliably at stock and elevated power.
241 owner reviews
Diesel Fuel Cap for Ram and GM 3.0L Duramax-Updated Larger Magnetic Aluminum Tank Gas Cap fit 2013-2018 Ram 1500 2500 3500,2019-2024 GM Pick-up Truck Accessories Replacement Eco Tanks Magnetic Green. Fuel-system hardware to keep the Duramax fed reliably at stock and elevated power.
326 owner reviews
TP1015 Fuel Filter for 6.6L Duramax Diesel Compatible with 2017-2025 Chevy Silverado/GMC Sierra 2500HD 3500HD, 2014-2019 Chevy Cruze | Replaces# 23304096, 13539108, 23456595, with Seals (2 Pack). Fuel-system hardware to keep the Duramax fed reliably at stock and elevated power.
72 owner reviews
Diesel Fuel Cap-Magnetic Aluminum, for GM chevy 3.0L Duramax (2020–2026) Silverado & Sierra, 2013-2018 dodge Ram 1500 2500 3500 diesel-gmc sierra/chevy silverado1500 accessories. Fuel-system hardware to keep the Duramax fed reliably at stock and elevated power.
75 owner reviews
Billet Fuel Filter Housing Cap Compatible with 2017-2019 Chevy/GMC 6.6L L5P Duramax Diesel 134001 2500HD 3500HD (without TP1015 fuel filter). Fuel-system hardware to keep the Duramax fed reliably at stock and elevated power.
680 owner reviews
Magnetic Fuel System Cap for GM 3.0L Duramax (2020–2026) | Fits Silverado & Sierra, Prevents Dirt & Contamination. Fuel-system hardware to keep the Duramax fed reliably at stock and elevated power.
319 owner reviews
iFJF Billet Aluminum Air Bleeder Screw Replacement for GM 2001-2017 Duramax Diesel Fuel Filter Red. Fuel-system hardware to keep the Duramax fed reliably at stock and elevated power.
193 owner reviews
Water in Fuel Indicator Sensor, Fuel Filter Sensor Compatible with 2001-2011 Silverado Sierra Truck 2500 2500HD 3500 3500HD 6.6L V8 Duramax Diesel Engine Fuel Filter (12-Sided). Fuel-system hardware to keep the Duramax fed reliably at stock and elevated power.
241 owner reviews
PPE 50-STAGE LEGAL Replacement Fuel Valve 113073000 & Viton O-Ring 113073001 Compatible with 2004.5-2010 GM 6.6 LLY/LBZ/LMM Duramax & 2007.5-2018 Ram 6.7 Diesel. Fuel-system hardware to keep the Duramax fed reliably at stock and elevated power.
1,166 owner reviews
6.6L Duramax Diesel Fuel Filter Housing Assembly with Seals,Fits 2001-2016 Chevy Silverado GMC Sierra 2500HD 3500HD,2012-2016 Chevrolet Express & GMC Savana– Replaces TP3018 TP3012 12664429 12633243. Fuel-system hardware to keep the Duramax fed reliably at stock and elevated power.
2 owner reviews
TP1015 Fuel filter 6.6L duramax diesel For Chevy Cruze/Silverado 2500HD | for Silverado 3500HD For GMC Sierra 2500/3500/2500HD/3500HD Turbo Diesel 14-24, 1.6L/2.0L/6.6L, Replace 23304096, 22937279. Fuel-system hardware to keep the Duramax fed reliably at stock and elevated power.
35 owner reviews
Diesel Water in Fuel WiF Sensor with Drain Valve Fuel Filter Sensor Compatible with Chevy Silverado 2500 3500 GMC Sierra 2500 3500 2001-2011 GM 6.6L Duramax LB7 LLY LBZ LMM LM1 Replace#12639277. Fuel-system hardware to keep the Duramax fed reliably at stock and elevated power.
2 owner reviews
Premium Fuel Tank Sump Kit Diesel & General Use Compatible with Diesel Truck Airdog FASS Cummins Duramax Powerstroke Dual-Port Integrated Return. Fuel-system hardware to keep the Duramax fed reliably at stock and elevated power.
8 owner reviews
0928400653 Fuel Pressure Regulator Fit for 2004-2005 Chevy Silverado 2500HD 3500,GMC Sierra 2500HD 3500 6.6L LLY Duramax Diesel,Replace 97369850. Fuel-system hardware to keep the Duramax fed reliably at stock and elevated power.
Written for this exact system, generation by generation.
Which pump you have, why the CP4 fails catastrophically, and how conversions and prevention kits work.
Lift pumps, filtration, CP4 protection, and rails in order of value.
The other half of the fuel system, and how supply problems get misdiagnosed as injectors.
Fuel filter intervals and the service parts worth keeping on the shelf.