Collection: 2020-2024 6.6L L5P Duramax
2020-2024 6.6L Duramax Performance Parts and Accessories
Maximize the potential of your 2020-2024 GMC and Chevy trucks with premium performance parts for the 6.6L L5P Duramax engine. Our extensive selection includes parts designed to boost power, enhance fuel efficiency, and improve durability. Whether you're...
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Fleece Performance 1/2 Inch Hose Barb to 3/4 Inch-16 O-ring (-8 AN) FPE-34553-A
Regular price $10.99 USDSale price $10.99 USD Regular priceUnit price / per -
Fleece Performance 1/2 Inch CP3 Feed Fitting FPE-CP3-FEED
Regular price $15.95 USDSale price $15.95 USD Regular priceUnit price / per -
Fleece Performance 1/2 Inch Billet Aluminum Universal Block Off Plug FPE-34071
Regular price $7.42 USDSale price $7.42 USD Regular priceUnit price / per -
Fleece Performance '-8AN Aluminum Male Weld Bung 1/2 inch Register 3/4 inch OD FPE-AN971-08DRD
Regular price $7.30 USDSale price $7.30 USD Regular priceUnit price / per -
Fleece Performance '-8 Straight to Hose Barb Black FPE-PL-00-08
Regular price $7.99 USDSale price $7.99 USD Regular priceUnit price / per -
Fleece Performance '-8 90 Degree to Hose Barb Black FPE-PL-90-08
Regular price $13.99 USDSale price $13.99 USD Regular priceUnit price / per -
Fleece Performance '-8 45 Degree to Hose Barb Black FPE-PL-45-08
Regular price $12.99 USDSale price $12.99 USD Regular priceUnit price / per -
Fleece Performance '-6 to 9/16 inch-18 Straight Male Black Fleece Performance w/ O-Ring FPE-APT-916-06
Regular price $10.99 USDSale price $10.99 USD Regular priceUnit price / per -
Fleece Performance '-6 AN Straight to Hose Barb FPE-PL-00-06
Regular price $6.99 USDSale price $6.99 USD Regular priceUnit price / per -
Fleece Performance '-6 90 Deg to Hose Barb Black FPE-PL-90-06
Regular price $12.99 USDSale price $12.99 USD Regular priceUnit price / per -
Fleece Performance FPE-PL-45-06 6AN 45-Degree to Hose Barb – Black
Regular price $12.99 USDSale price $12.99 USD Regular priceUnit price / per -
Fleece Performance FPE-AN971-10DRD 10AN Aluminum Male Weld Bung – 5/8" Register, 7/8" OD
Regular price $8.35 USDSale price $8.35 USD Regular priceUnit price / per -
Fleece Performance FPE-34805-A 10 AN to 7/8-14 Straight Male Adapter – Black (Without O-Ring)
Regular price $14.96 USDSale price $14.96 USD Regular priceUnit price / per -
Fleece Performance FPE-34873-A 8 AN to 3/4-16 Straight Male Adapter – Black (Without O-Ring)
Regular price $14.96 USDSale price $14.96 USD Regular priceUnit price / per -
Titanium Signature Series Diesel Fuel System 240GPH (70-75 PSI) GM Duramax 6.6L 2020-2022 900-1200hp FASS
Regular price $899.00 USDSale price $899.00 USD Regular priceUnit price / per -
Titanium Signature Series Diesel Fuel System 220GPH (70-75 PSI) GM Duramax 6.6L 2020-2022 900-1200hp FASS
Regular price $849.00 USDSale price $849.00 USD Regular priceUnit price / per -
Titanium Signature Series Diesel Fuel System 140GPH (70-75 PSI) GM Duramax 6.6L 2020-2022 Stock-900hp FASS
Regular price $799.00 USDSale price $799.00 USD Regular priceUnit price / per -
Fleece Performance Replacement Sensor Connector With Pigtail for L5P Duramax and GM Vehicles (L5P Duramax Sensor Pigtail 1) FPE-HAR-MU-PT-1
Regular price $37.99 USDSale price $37.99 USD Regular priceUnit price / per -
Fleece Performance MAP Sensor Spacer and Boost Reference Port for L5P Duramax FPE-L5P-MAP-SPR
Regular price $68.99 USDSale price $68.99 USD Regular priceUnit price / per -
Fleece Performance MAP Sensor and Airbox Control Valve Pigtail FPE-HAR-MU-PT-7
Regular price $28.99 USDSale price $28.99 USD Regular priceUnit price / per -
FASS Fuel Systems Drop-In Series Diesel Fuel System 2020-2023 GM (DIFSL5P2001)
Regular price $479.00 USDSale price $479.00 USD Regular priceUnit price / per -
FASS Fuel Systems Drop-In Series Diesel Fuel System 2017-2023 GM (DIFSL5P1001)
Regular price $479.00 USDSale price $479.00 USD Regular priceUnit price / per -
Fleece Performance Duramax Fan Extension Harness (L5P) FPE-HAR-DMAX-FAN-L5P
Regular price $45.99 USDSale price $45.99 USD Regular priceUnit price / per -
Gator Fasteners 2017-24 Chevy/GMC 6.6L L5P Duramax Gator Heavy Duty Head Stud Kit HSK66L5P
Regular price $569.24 USDSale price $569.24 USD Regular priceUnit price / per$656.24 USDSale
2020-2024 6.6L Duramax Performance Parts and Accessories
Maximize the potential of your 2020-2024 GMC and Chevy trucks with premium performance parts for the 6.6L L5P Duramax engine. Our extensive selection includes parts designed to boost power, enhance fuel efficiency, and improve durability. Whether you're towing heavy loads, off-roading, or seeking everyday performance gains, our parts deliver exceptional performance and reliability.
Popular Categories:
- Engine & Performance: Upgrades for turbochargers, air intake systems, and fuel systems.
- Drivetrain & Chassis: Improve your truck’s stability with suspension, brakes, and drivetrain parts.
- Exterior Parts & Accessories: Enhance your truck's look with custom grilles, bumpers, and more.
- Lighting & Accessories: Improve visibility with LED lights, light bars, and more.
- Fluids & Filters: Maintain optimal performance with premium fluids and filters.














