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 45 Degree Miter Cut Stack Cover 5 inch FPE-STK-CVR-5-45
Regular price $43.99 USDSale price $43.99 USD Regular priceUnit price / per -
Fleece Performance 4 Inch Short Hood Stack Cover-Straight Cut FPE-HSC-4-S
Regular price $40.99 USDSale price $40.99 USD Regular priceUnit price / per -
Fleece Performance 3/8 Inch NPT Hex Socket Plug Black FPE-NPT-38
Regular price $2.99 USDSale price $2.99 USD Regular priceUnit price / per -
Fleece Performance 3/8 Inch CP3 Return Fitting FPE-CP3-RTRN
Regular price $15.95 USDSale price $15.95 USD Regular priceUnit price / per -
Fleece Performance 3/8 Inch Billet Aluminum Universal Block Off Plug FPE-34070
Regular price $6.47 USDSale price $6.47 USD Regular priceUnit price / per -
Fleece Performance 3/4 Inch NPT Hex Socket Plug Black FPE-NPT-34
Regular price $4.99 USDSale price $4.99 USD Regular priceUnit price / per -
Fleece Performance 3/14 Inch-16 Hex Socket Plug w/ O-Ring FPE-SP-3416
Regular price $4.99 USDSale price $4.99 USD Regular priceUnit price / per -
Fleece Performance 23 Inch High Pressure Fuel Line 8mm x 3.5mm Line M14 x 1.5 Nuts FPE-34200-23
Regular price $74.00 USDSale price $74.00 USD Regular priceUnit price / per -
Fleece Performance 22 Inch High Pressure Fuel Line 8mm x 3.5mm Line M14 x 1.5 Nuts FPE-34200-22
Regular price $72.00 USDSale price $72.00 USD Regular priceUnit price / per -
Fleece Performance 21 Inch High Pressure Fuel Line 8mm x 3.5mm Line M14 x 1.5 Nuts FPE-34200-21
Regular price $70.00 USDSale price $70.00 USD Regular priceUnit price / per -
Gator Fasteners 2001-24 Chevy/GMC 6.6L Duramax Gator Heavy Duty Harmonic Damper Bolt HDB66
Regular price $29.69 USDSale price $29.69 USD Regular priceUnit price / per$41.99 USDSale -
Fleece Performance 20 Inch High Pressure Fuel Line 8mm x 3.5mm Line M14 x 1.5 Nuts FPE-34200-20
Regular price $68.00 USDSale price $68.00 USD Regular priceUnit price / per -
Fleece Performance 2 Setrab To -10AN Fittings Purchased W/Allison Transmission Cooler Lines FPE-TL-ST
Regular price $19.90 USDSale price $19.90 USD Regular priceUnit price / per -
Fleece Performance 19 Inch High Pressure Fuel Line 8mm x 3.5mm Line M14 x 1.5 Nuts FPE-34200-19
Regular price $66.00 USDSale price $66.00 USD Regular priceUnit price / per -
Fleece Performance 18 Inch Rail Pressure Sensor Extension Harness FPE-HAR-RP-EXT
Regular price $43.04 USDSale price $43.04 USD Regular priceUnit price / per -
Fleece Performance 18 Inch High Pressure Fuel Line 8mm x 3.5mm Line M14 x 1.5 Nuts FPE-34200-18
Regular price $64.00 USDSale price $64.00 USD Regular priceUnit price / per -
Fleece Performance 17 Inch High Pressure Fuel Line 8mm x 3.5mm Line M14 x 1.5 Nuts FPE-34200-17
Regular price $62.00 USDSale price $62.00 USD Regular priceUnit price / per -
Fleece Performance 15 Inch High Pressure Fuel Line 8mm x 3.5mm Line M14 x 1.5 Nuts FPE-34200-15
Regular price $58.00 USDSale price $58.00 USD Regular priceUnit price / per -
Fleece Performance 14 Inch High Pressure Fuel Line 8mm x 3.5mm Line M14 x 1.5 Nuts FPE-34200-14
Regular price $56.00 USDSale price $56.00 USD Regular priceUnit price / per -
Fleece Performance 13 Inch High Pressure Fuel Line 8mm x 3.5mm Line M14 x 1.5 Nuts FPE-34200-13
Regular price $54.00 USDSale price $54.00 USD Regular priceUnit price / per -
Fleece Performance 12mm Quick Connect to 3/4 Inch-16 O-ring (-8 AN) FPE-34550-A
Regular price $15.99 USDSale price $15.99 USD Regular priceUnit price / per -
Fleece Performance 12 Inch High Pressure Fuel Line 8mm x 3.5mm Line M14 x 1.5 Nuts FPE-34200-12
Regular price $52.00 USDSale price $52.00 USD Regular priceUnit price / per -
Fleece Performance 10 Inch High Pressure Fuel Line 8mm x 3.5mm Line M14 x 1.5 Nuts FPE-34200-10
Regular price $48.00 USDSale price $48.00 USD Regular priceUnit price / per -
Fleece Performance 1/8 Inch NPT Hex Socket Plug Black FPE-NPT-18
Regular price $2.99 USDSale price $2.99 USD Regular priceUnit price / per -
Fleece Performance 1/4 Inch NPT Hex Socket Plug Black FPE-NPT-14
Regular price $2.99 USDSale price $2.99 USD Regular priceUnit price / per -
Fleece Performance 1/2 Inch Quick Connect to 3/4 Inch-16 O-ring (-8 AN) FPE-34900-A
Regular price $16.99 USDSale price $16.99 USD Regular priceUnit price / per -
Fleece Performance 1/2 Inch NPT to -10AN Male FPE-34874-A
Regular price $10.95 USDSale price $10.95 USD Regular priceUnit price / per -
Fleece Performance 1/2 Inch NPT Hex Socket Plug Black FPE-NPT-12
Regular price $4.49 USDSale price $4.49 USD Regular priceUnit price / per
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.

















