• Log In Log In
  • Create an Account

Contact Us
Toggle Nav
View Cart 0 items
Search
Advanced Search
Menu
Account

NEED HELP? Chat with us or call (317) 286-3573

Chevy/GMC (Duramax)

Looking for performance replacement upgrades for your 2001-2024 Duramax, Fleece Performance Engineering has you covered. Upgrades like the PowerFlo CP3, Allison Transmission cooler line kits and electrical repair kits to the Freedom Series LB7 cupless cylinder heads are just some of what Fleece Performance has to offer. Tried and true solutions for your Duramax truck needs with availability direct or through your local dealer.

View as Grid List

Items 1-12 of 39

Set Descending Direction
  1. Tie Rod Sleeve Kit for 2015+ Colorado / Canyon
    Tie Rod Sleeve Kit for 2015+ Colorado / Canyon
    SKU: FPE-TIERODSLEEVES-COL
    $79.79
    Add to Wish List Add to Compare
  2. GM Automatic Transmission 20-Pin Pigtail
    GM Automatic Transmission 20-Pin Pigtail
    SKU: FPE-HAR-GM-AT-20-PT
    $104.99
    Add to Wish List Add to Compare
  3. Fleece Performance Fuel Rail Pressure Harness for LML 6.6L Duramax
    Fleece Performance Fuel Rail Pressure Harness for LML 6.6L Duramax
    SKU: FPE-HAR-DMAX-LML-RP
    $73.49
    Add to Wish List Add to Compare
  4. 2001-2002 GM/Allison TapShifter
    2001-2002 GM/Allison TapShifter
    SKU: FPE-TAPSHIFTER12
    $418.95
    Add to Wish List Add to Compare
  5. Tie Rod Reinforcement Sleeves for 1999-2010 GM 2500-3500HD Pickups
    Tie Rod Reinforcement Sleeves for 1999-2010 GM 2500-3500HD Pickups
    SKU: FPE-TIERODSLEEVES
    $83.99
    Add to Wish List Add to Compare
  6. Allison Transmission Cooler Lines for 2001-2005 (LB7-LLY)
    Allison Transmission Cooler Lines for 2001-2005 (LB7-LLY)
    1  Review
    SKU: FPE-TL-LB7-LLY
    $282.45
    Add to Wish List Add to Compare
  7. 1/2" CP3 Feed Fitting
    1/2" CP3 Feed Fitting
    SKU: FPE-CP3-FEED
    $16.75
    Add to Wish List Add to Compare
  8. Allison Transmission Cooler Lines for 2006-2010 (LBZ-LMM)
    Allison Transmission Cooler Lines for 2006-2010 (LBZ-LMM)
    SKU: FPE-TL-LBZ-LMM
    $282.45
    Add to Wish List Add to Compare
  9. 2003-2005 GM/Allison TapShifter
    2003-2005 GM/Allison TapShifter
    1  Review
    SKU: FPE-TAPSHIFTER35
    $418.95
    Add to Wish List Add to Compare
  10. GM/Allison Kodiak/TopKick Tapshifter
    GM/Allison Kodiak/TopKick Tapshifter
    SKU: FPE-TAPSHIFTER-KDTK
    $418.95
    Add to Wish List Add to Compare
  11. Remote Turbo Oil Feed Line Kit for 2001-2016 Duramax with 1/4 NPT Turbo Oil Inlet (S300/S400)
    Remote Turbo Oil Feed Line Kit for 2001-2016 Duramax with 1/4 NPT Turbo Oil Inlet (S300/S400)
    SKU: FPE-DTFL-S3S4-0116
    $104.99
    Add to Wish List Add to Compare
  12. AlliLocker
    AlliLocker
    1  Review
    SKU: FPE-ALILKR
    $187.95
    Add to Wish List Add to Compare
Page
per page

IMPORTANT: We will not be shipping product between the dates of July 5th and July 11th. All orders will be processed and shipped the week of July 12th.

While we are closed take advantage of 5% off MSRP!

Compare Products
  1. Remove This Item
Compare
Clear All
You have no items to compare.
My Wish List
Last Added Items
  1. Add to Cart
    Remove This Item
Go to Wish List
You have no items in your wish list.
© 2024 Fleece Performance Engineering, Inc. All Rights Reserved.