Skip to content
Free Shipping on most orders over $100.00. Buy now, pay later with ShopPay.
Free Shipping on most orders over $100.00. Buy now, pay later with ShopPay.

L5P Duramax Parts

Filters

  • responsive-image responsive-image

    Fleece Performance 2017+ GM Silverado 2500/3500 6.6L L5P Duramax High Flow Intake Horn

    Fleece Performance
    $219.00 - $219.00
    $219.00
    $243.00
    $243.00 - $243.00
    $243.00

    Fleece Performance Model FPE-L5P-INTAKEHORNGain up to 10 additional RWHP with our cast aluminum high flow intake horn for the 2017-2019 L5P 6.6L Du...

    View full details
    $219.00 - $219.00
    $219.00
    $243.00
    $243.00 - $243.00
    $243.00
  • responsive-image responsive-image

    Fleece Performance 17-22 GM 2500/3500 Duramax MAP Sensor Spacer & Boost Reference Port

    Fleece Performance
    $89.00 - $89.00
    $89.00
    $99.00
    $99.00 - $99.00
    $99.00

    Fleece Performance Model FPE-L5P-MAP-SPRAll new Fleece Performance MAP sensor spacer with boost reference port for the L5P Duramax. Problem: Becaus...

    View full details
    $89.00 - $89.00
    $89.00
    $99.00
    $99.00 - $99.00
    $99.00
  • User 1 User 1

    Fleece Performance 24-25 GM 2500/3500 Duramax L5P Secondary MAP Sensor Spacer

    Fleece Performance
    $99.00 - $99.00
    $99.00
    $99.00 - $99.00
    $99.00

    Fleece Performance Model FPE-L5P-MAP-SPR-24Fleece Performance 24-25 GM 2500/3500 Duramax L5P Secondary MAP Sensor Spacer

    $99.00 - $99.00
    $99.00
    $99.00 - $99.00
    $99.00
  • Fleece Performance 17-23 GM L5P 2500/3500 Freedom Series Cylinder Head (Passenger Side). Fleece Performance 17-23 GM L5P 2500/3500 Freedom Series Cylinder Head (Passenger Side).

    Fleece Performance 17-23 GM L5P 2500/3500 Freedom Series Cylinder Head (Passenger Side)

    Fleece Performance
    $1,570.00 - $1,570.00
    $1,570.00
    $1,570.00 - $1,570.00
    $1,570.00

    Fleece Performance Model FPE-61-10014-PFleece Performance 17-23 GM 2500/3500 Freedom Series Cylinder Head (Passenger Side) Each cylinder head is ma...

    View full details
    $1,570.00 - $1,570.00
    $1,570.00
    $1,570.00 - $1,570.00
    $1,570.00
  • Fleece Performance 17-23 GM L5P 2500/3500 Freedom Series Cylinder Head (Driver Side). Fleece Performance 17-23 GM L5P 2500/3500 Freedom Series Cylinder Head (Driver Side).

    Fleece Performance 17-23 GM L5P 2500/3500 Freedom Series Cylinder Head (Driver Side)

    Fleece Performance
    $1,570.00 - $1,570.00
    $1,570.00
    $1,570.00 - $1,570.00
    $1,570.00

    Fleece Performance Model FPE-61-10014-DFleece Performance 17-23 GM 2500/3500 Freedom Series Cylinder Head (Driver Side) Each cylinder head is manuf...

    View full details
    $1,570.00 - $1,570.00
    $1,570.00
    $1,570.00 - $1,570.00
    $1,570.00
  • responsive-image responsive-image

    Fleece Performance 01-19 GM 2500/3500 Allison LCT/GM 4T65-E Internal Harness Connector & Seal (7pk)

    Fleece Performance
    $180.00 - $180.00
    $180.00
    $200.00
    $200.00 - $200.00
    $200.00

    Fleece Performance Model FPE-HAR-GM-LCT-SEAL-7PGet rid of oil leaks from the harness connector with our replacement internal wiring harness seal fo...

    View full details
    $180.00 - $180.00
    $180.00
    $200.00
    $200.00 - $200.00
    $200.00
  • responsive-image responsive-image

    Fleece Performance 17-22 GM 2500/3500 Duramax Replacement Fuel Injector Connector w/Pigtail (4 Pack)

    Fleece Performance
    $232.00 - $232.00
    $232.00
    $258.00
    $258.00 - $258.00
    $258.00

    Fleece Performance Model FPE-HAR-L5P-INJ-PT-4PA common failure point on the L5P Duramax, our replacement connector with 4.5 inch pigtail for the fu...

    View full details
    $232.00 - $232.00
    $232.00
    $258.00
    $258.00 - $258.00
    $258.00
  • responsive-image responsive-image

    Fleece Performance 11+ GM Duramax 6.6L 2500-3500HD Pickups Tie Rod Sleeves

    Fleece Performance
    $106.00 - $106.00
    $106.00
    $117.00
    $117.00 - $117.00
    $117.00

    Fleece Performance Model FPE-TIERODSLEEVES-LMLFleece Performance LML Tie Rod Sleeves are a must for any 2011 and up GM 2500-3500HD pickup that util...

    View full details
    $106.00 - $106.00
    $106.00
    $117.00
    $117.00 - $117.00
    $117.00
  • responsive-image responsive-image

    Fleece Performance 01-19 GM 2500/3500 34V Duramax Billet Rocker Arm Bridges

    Fleece Performance
    $659.00 - $659.00
    $659.00
    $733.00
    $733.00 - $733.00
    $733.00

    Fleece Performance Model FPE-BRAB-D1Fleece Performance billet rocker arm bridges for the GM Duramax. These bridges offer a massive 2.5-time strengt...

    View full details
    $659.00 - $659.00
    $659.00
    $733.00
    $733.00 - $733.00
    $733.00
  • responsive-image responsive-image

    Fleece 17-22 GM 2500/3500 Duramax L5O Replacement Fuel Injector Connector

    Fleece Performance
    $78.00 - $78.00
    $78.00
    $86.00
    $86.00 - $86.00
    $86.00

    Fleece Performance Model FPE-HAR-L5P-INJ-PTA common failure point on the L5P Duramax, our replacement connector with 4.5 inch pigtail for the fuel ...

    View full details
    $78.00 - $78.00
    $78.00
    $86.00
    $86.00 - $86.00
    $86.00
  • responsive-image responsive-image

    Fleece Performance 17-19 GM 2500/3500 Duramax LP5 Fan Extension Harness

    Fleece Performance
    $60.00 - $60.00
    $60.00
    $66.00
    $66.00 - $66.00
    $66.00

    Fleece Performance Model FPE-HAR-DMAX-FAN-L5POur replacement fan extension harness for the 2017-2019 L5P Duramax allows you to repair a broken or d...

    View full details
    $60.00 - $60.00
    $60.00
    $66.00
    $66.00 - $66.00
    $66.00
  • responsive-image responsive-image

    Fleece Performance 17-19 GM Duramax 2500/3500 Heavy Duty Transmission Cooler lines

    Fleece Performance
    $425.00 - $425.00
    $425.00
    $472.00
    $472.00 - $472.00
    $472.00

    Fleece Performance Model FPE-TL-L5P-1719Replace your leaking transmission lines with our heavy duty, high flow, flexible transmission lines. Our ki...

    View full details
    $425.00 - $425.00
    $425.00
    $472.00
    $472.00 - $472.00
    $472.00
  • responsive-image responsive-image

    Fleece Performance 17-19 GM Duramax 6.6L L5P Fuel Filter Upgrade Kit

    Fleece Performance
    $295.00 - $295.00
    $295.00
    $328.00
    $328.00 - $328.00
    $328.00

    Fleece Performance Model FPE-L5P-FFBA-1719The Fleece Performance L5P fuel filter upgrade kit allows you to seamlessly change over from the stock ca...

    View full details
    $295.00 - $295.00
    $295.00
    $328.00
    $328.00 - $328.00
    $328.00
  • responsive-image responsive-image

    Fleece Performance 2020 GM Duramax 6.6L L5P w/Short Bed Fuel Filter Upgrade Kit

    Fleece Performance
    $295.00 - $295.00
    $295.00
    $328.00
    $328.00 - $328.00
    $328.00

    Fleece Performance Model FPE-L5P-FFBA-20The Fleece Performance L5P fuel filter upgrade kit allows you to seamlessly change over from the stock cart...

    View full details
    $295.00 - $295.00
    $295.00
    $328.00
    $328.00 - $328.00
    $328.00
  • responsive-image responsive-image

    Fleece Performance 17-22 GM 2500/3500 Duramax Replacement Fuel Injector Connector w/Pigtail (8 Pack)

    Fleece Performance
    $386.00 - $386.00
    $386.00
    $429.00
    $429.00 - $429.00
    $429.00

    Fleece Performance Model FPE-HAR-L5P-INJ-PT-8PA common failure point on the L5P Duramax, our replacement connector with 4.5 inch pigtail for the fu...

    View full details
    $386.00 - $386.00
    $386.00
    $429.00
    $429.00 - $429.00
    $429.00
  • responsive-image responsive-image

    Fleece Performance 17-22 GM 2500/3500 L5P Duramax Sensor Connector w/4.5in Pigtail

    Fleece Performance
    $49.00 - $49.00
    $49.00
    $55.00
    $55.00 - $55.00
    $55.00

    Fleece Performance Model FPE-HAR-MU-PT-1Replacement connector with 4.5 inch pigtail for use in multiple locations on the Duramax, Ram with Cummins,...

    View full details
    $49.00 - $49.00
    $49.00
    $55.00
    $55.00 - $55.00
    $55.00

Powerhouse Diesel