L5P Duramax Fuel System

L5P Duramax Injectors

L5P Duramax Lift Pumps

L5P Duramax fuel system parts are designed to ensure reliable fuel delivery, improved engine performance, and long-lasting durability on 2017+ Chevy and GMC 6.6L diesel trucks. Ideal for towing, hauling, and high-performance applications, these heavy-duty components protect your fuel system, enhance efficiency, and maximize power—essential upgrades for diesel owners seeking dependable performance under any load.

55 Items

L5P Duramax Fuel Contamination Kit Alliant AP54820 — L5P Duramax Fuel Contamination Kit Alliant AP54820 $5,186.13
Fits: L5P Duramax Pickup 2017-2019

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L5P Duramax Fuel Contamination Kit Alliant AP54822 — L5P Duramax Fuel Contamination Kit Alliant AP54822 $5,461.01
Fits: L5P Duramax 2020-2023 (Pickup)

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Electric Heater Kit Fass HK1001 — Electric Heater Kit Fass HK1001 $160.55
Fits: For Fass Titanium Systems

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L5P Duramax Fuel Filter Housing H&S Motorsports 134001 — L5P Duramax Fuel Filter Housing H&S Motorsports 134001 $115.00
Fits: L5P Duramax 2017-2018

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Suction Tube Kit Fass STK1002 — Suction Tube Kit Fass STK1002 $84.55
California Restricted

Fits: Universal Applications

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L5P Duramax High-Pressure Fuel Pump Installation Kit Alliant AP0135 — L5P Duramax High-Pressure Fuel Pump Installation Kit Alliant AP0135 $215.61
Fits: L5P Duramax 2017-2020

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Suction Tube Kit Airdog 901-01-0351-QC — Suction Tube Kit Airdog 901-01-0351-QC $120.00
California Restricted

Fits: Universal

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Universal Fuel Sump Kit Fass STK5500 — IN STOCK
Universal Fuel Sump Kit Fass STK5500 $236.55
California Restricted

Fits: Universal

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Universal No Drop Fuel Tank Sump (Bowl Only) Fass STK5500BO — IN STOCK
Universal No Drop Fuel Tank Sump (Bowl Only) Fass STK5500BO $151.05
California Restricted

Fits: Universal

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L5P Duramax Fuel Filter Upgrade Kit Fleece FPE-L5P-FFBA-20 — L5P Duramax Fuel Filter Upgrade Kit Fleece FPE-L5P-FFBA-20 $229.00
Fits: L5P Duramax 2020-2021

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Heavy Duty Frame Clamp Fass CBK1001 — Heavy Duty Frame Clamp Fass CBK1001 $71.25
Fits: For Use With Titanium or Titanium Signature Fass Fuel Systems

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Multi-Function Fuel Tank Sump Beans Diesel 280002 — Multi-Function Fuel Tank Sump Beans Diesel 280002 $149.95
Fits: Universal - Most Diesel Fuel Tanks (Cutting Required)

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Multi-Function Fuel Tank Sump Beans Diesel 280003 — Multi-Function Fuel Tank Sump Beans Diesel 280003 $169.95
Fits: Universal - Fits Most Diesel Fuel Tanks (Cutting Required)

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Beans Machine Micro Sump Beans 280032 — Beans Machine Micro Sump Beans 280032 $76.17
Fits: Universal - Fits Most Diesel Fuel Tanks (Cutting Required)

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Fuel Tank Sump (With Suction Tube Upgrade) Fass STK5500B — IN STOCK
Fuel Tank Sump (With Suction Tube Upgrade) Fass STK5500B $189.05
California Restricted

Fits: Universal - Many Applications (Requires Existing Bulkhead Fitting)

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1-1/2 Inch Filler Neck Return Manifold FASS RM-1004-A — 1-1/2 Inch Filler Neck Return Manifold FASS RM-1004-A $17.10
Fits: Universal - For Fass Fuel Systems & Other Applications

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L5P Duramax Injector Fuel Line Cylinder (1,3,6,8) AcDelco 12720157 — L5P Duramax Injector Fuel Line Cylinder (1,3,6,8) AcDelco 12720157 $31.71
Fits: L5P Duramax 2017-2022

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Duramax Fuel Tank Strap Bolt GM 11519894 — Duramax Fuel Tank Strap Bolt GM 11519894 $8.61
Fits: 2500HD/3500 Silverado | Sierra 2001-2019

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L5P Duramax Injector Connector Pigtail GM 19368140 — L5P Duramax Injector Connector Pigtail GM 19368140 $111.29
Fits: L5P Duramax 2017-2021

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High Flow Adjustable Fuel Pressure Regulator Fass FPR2001 — High Flow Adjustable Fuel Pressure Regulator Fass FPR2001 $299.25
California Restricted

Fits: Universal

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L5P Duramax Replacement Fuel Injector Connector Pigtail Fleece FPE-HAR-L5P-INJ-PT — L5P Duramax Replacement Fuel Injector Connector Pigtail Fleece FPE-HAR-L5P-INJ-PT $59.99
Fits: L5P Duramax 2017-2022

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L5P Duramax Fuel Systems Drop-In Series Diesel Fuel System FASS DIFSL5P2001 — L5P Duramax Fuel Systems Drop-In Series Diesel Fuel System FASS DIFSL5P2001 $479.00
Fits: L5P Duramax 2020-2023 (Crew Cab Short Bed)

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L5P Duramax Fuel Systems Drop-In Series Diesel Fuel System FASS DIFSL5P1001 — L5P Duramax Fuel Systems Drop-In Series Diesel Fuel System FASS DIFSL5P1001 $479.00
Fits: L5P Duramax 2017-2023

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DFS780 Fuel System Wiring Harness AFE 42-90002 — DFS780 Fuel System Wiring Harness AFE 42-90002 $71.65
Fits: AFE DFS780 Fuel Systems

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Full Force FFD346 Billet Dual Fuel Filter Header Only — Full Force FFD346 Billet Dual Fuel Filter Header Only $190.00
Fits: Universal (Filters sold separately)

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FFD Diesel Fuel Tank Sump Kit — FFD Diesel Fuel Tank Sump Kit $135.00
Fits: Universal

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Fuel Tank Sump Kit FASS SK5501 — Fuel Tank Sump Kit FASS SK5501 $169.00
California Restricted

Fits: Universal - For Most Diesel Fuel Tanks (Cutting Required)

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L5P Duramax Billet Filter Cap Kit FASS BFC1001K — L5P Duramax Billet Filter Cap Kit FASS BFC1001K $110.20
Fits: L5P Duramax 2017-2024

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L5P Duramax Fuel Injection Fuel Return Pipe GM 12673878 — L5P Duramax Fuel Injection Fuel Return Pipe GM 12673878 $53.29
Fits: L5P Duramax 2017-2021

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L5P Duramax High Pressure Fuel Pipe GM 12685923 — L5P Duramax High Pressure Fuel Pipe GM 12685923 $40.53
Fits: L5P Duramax 2017-2024

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L5P Duramax Fuel High Pressure Pipe GM 12685924 — L5P Duramax Fuel High Pressure Pipe GM 12685924 $45.93
Fits: L5P Duramax 2017-2024

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L5P Duramax Fuel Injection Fuel Return Pipe GM 12684288 — L5P Duramax Fuel Injection Fuel Return Pipe GM 12684288 $116.41
Fits: L5P Duramax 2017-2024

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L5P Duramax Driver Side Fuel Injection Fuel Rail GM 12686810 — L5P Duramax Driver Side Fuel Injection Fuel Rail GM 12686810 $355.53
Fits: L5P Duramax 2017-2023

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L5P Duramax Passenger Side Fuel Injection Fuel Rail GM 12686808 — L5P Duramax Passenger Side Fuel Injection Fuel Rail GM 12686808 $336.51
Fits: L5P Duramax 2017-2023

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L5P Duramax Fuel Injection Fuel Return Pipe GM 12684289 — L5P Duramax Fuel Injection Fuel Return Pipe GM 12684289 $109.47
Fits: L5P Duramax 2017-2024

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L5P Duramax Fuel Cooler GM 84215312 — L5P Duramax Fuel Cooler GM 84215312 $349.09
Fits: L5P Duramax 2017-2019

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MANN PU9012/1Z Fuel Filter Element - Metal Free — MANN PU9012/1Z Fuel Filter Element - Metal Free $44.23
Fits: L5P Duramax 2017-2019

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L5P Duramax Fuel Cooler GM 84740502 — L5P Duramax Fuel Cooler GM 84740502 $103.69
Fits: L5P Duramax 2020-2024

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L5P Duramax Fuel Injector Installation Kit - Cylinders 2,4,5,7 Alliant AP0131 — L5P Duramax Fuel Injector Installation Kit - Cylinders 2,4,5,7 Alliant AP0131 $48.77
Fits: L5P Duramax 2017-2025 | 2019-2025 L5D (Cab & Chassis)

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L5P Duramax Fuel Injector Installation Kit - Cylinders 1,3,6,8 Alliant AP0132 — L5P Duramax Fuel Injector Installation Kit - Cylinders 1,3,6,8 Alliant AP0132 $48.77
Fits: L5P Duramax 2017-2025 | 2019-2025 L5D (Cab & Chassis)

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L5P Duramax CP3 Conversion Kit w/ 10mm Pump S&S Diesel L5P-CP3-10 — L5P Duramax CP3 Conversion Kit w/ 10mm Pump S&S Diesel L5P-CP3-10 $2,912.00
California Restricted

Fits: L5P Duramax 2017-2023

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L5P Duramax High-Pressure Fuel Pump (HPFP) GM 12731367 — L5P Duramax High-Pressure Fuel Pump (HPFP) GM 12731367 $881.63
Fits: L5P Duramax 2017-2020 | L5D 2019-2020 Cab & Chassis

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Fuel Rail Pressure Sensor Alliant AP63632 — Sold Out
Fuel Rail Pressure Sensor Alliant AP63632 $126.93
Fits: L5P|L5D Duramax 2017-2023

L5P Duramax Fuel Pump Control Module GM 13565642 — Sold Out
L5P Duramax Fuel Pump Control Module GM 13565642 $109.27
Fits: L5P Duramax 2017-2023

L5P Duramax Fuel Filter Upgrade Kit Fleece FPE-L5P-FFBA-1719 — L5P Duramax Fuel Filter Upgrade Kit Fleece FPE-L5P-FFBA-1719 $229.00
California Restricted

Fits: GM 2500HD/3500HD 6.6L Duramax L5P (Short or Long Bed) 2017-2019 | GM 2500HD/3500HD 6.6L Duramax L5P (Long Bed) 2020-2024

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L5P Duramax Driver Side Fuel Rail GM 12731370 — L5P Duramax Driver Side Fuel Rail GM 12731370 $251.34
Fits: L5P Duramax 2024

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L5P Duramax Passenger Side Fuel Rail GM 12721111 — L5P Duramax Passenger Side Fuel Rail GM 12721111 $162.77
Fits: L5P Duramax 2024

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Full Force FFD346 Billet Fuel Filter Header With CAT Filters — Full Force FFD346 Billet Fuel Filter Header With CAT Filters $259.49
Fits: Universal

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Full Force FFD346 Billet Fuel Filter Header With Baldwin Filters — Full Force FFD346 Billet Fuel Filter Header With Baldwin Filters $255.72
Fits: Universal

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6.7 Cummins Fuel Filter Delete Fleece FPE-FFD-RO-5G — 6.7 Cummins Fuel Filter Delete Fleece FPE-FFD-RO-5G $64.95
California Restricted

Fits: 6.7 Cummins 2019-2024

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L5D Fuel Contamination Kit Alliant AP54821 — L5D Fuel Contamination Kit Alliant AP54821 $5,002.71
Fits: L5D Duramax 2019-2022 (Cab&Chassis)

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L5P Duramax Fuel Sender Pump Assy GM 86801553 — L5P Duramax Fuel Sender Pump Assy GM 86801553 $222.93
Fits: L5P Duramax 2017-2019

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Full Force FFD345 Billet Fuel Filter Header Only — Full Force FFD345 Billet Fuel Filter Header Only $135.00
Fits: Universal (Filters sold separately)

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L5P Duramax Fuel Pump Module Assembly GM 85068787 — Sold Out
L5P Duramax Fuel Pump Module Assembly GM 85068787 $228.40
Fits: L5P Duramax 2017–2019

LP5 Duramax Titanium Signature Series Plus 240GPH Fuel System FASS TSPC13290F240G — LP5 Duramax Titanium Signature Series Plus 240GPH Fuel System FASS TSPC13290F240G $929.00
California Restricted

Fits: 6.6 Duramax 2017-2019

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