Earn Boost Points on Every Purchase — Join Free & Save!

Hooligan Turbochargers In Stock Ready To Ship!

Contamination Kits In Stock!

Now Offering Vehicles For Sale!

2004.5-2005 GM 2500/3500 Engine Parts

126 products
Brand Show all Brand
Product Type Show all Product Type
Price
  • -
Show all Price
S&B | 2004-2005 GM 6.6L LLY Duramax Dry Extendable Cold Air Intake S&B | 2004-2005 GM 6.6L LLY Duramax Dry Extendable Cold Air Intake
$379.00
$379.00
Maximum Performance Our cold air intake for the 2004-2005 Chevy / GMC Duramax LLY 6.6L was engineered to minimize air restriction and flows 44.63 percent better than stock. This kit comes with a fu...
Fleece | Universal 45 Degree CAC Boot
$71.79
$71.79
Reinforced silicone intake hose with following features: Inlet ID: 3.00" Outlet ID: 3.00" Leg Lengths: 2.375" and 3.875" 45 degree bend 4 ply aramid polyester reinforced
Fleece | Universal Billet Aluminum Adapter Fitting -10AN Male TO 1.325in O-Ring Bore Fleece | Universal Billet Aluminum Adapter Fitting -10AN Male TO 1.325in O-Ring Bore
$42.99
$42.99
Anodized billet aluminum adapter fitting with retaining bolt. Features a -10AN Male fitting to 1.325" O-ring bore. 
Fleece | Universal Pre-Formed 5 / 8in ID Hose With 90 Deg. Ends Fleece | Universal Pre-Formed 5 / 8in ID Hose With 90 Deg. Ends
$34.79
$34.79
Fleece Performance Universal Pre-Formed 5/8in ID Hose w/ 90 Deg. Ends
Sold Out
Fleece | 2001-2019 GM 2500 / 3500 6.6 Duramax Upgraded 7 / 16in Stage 2 Pushrods *DISCONTINUED* Fleece | 2001-2019 GM 2500 / 3500 6.6 Duramax Upgraded 7 / 16in Stage 2 Pushrods *DISCONTINUED*
$490.19
$490.19
Upgraded 7/16” diameter pushrods for GM’s Duramax 6.6L diesel engines. Produced from 4130 chrome molybdenum steel and heat treated to Rockwell Rc60 for outstanding strength and rigidity. These push...
Fleece | 2001-2016 GM Duramax Billet Coolant Block Off Plate Fleece | 2001-2016 GM Duramax Billet Coolant Block Off Plate
$60.88
$60.88
Upgrade your rear engine cover and stop the coolant leaks for good! Our blocking plate is thicker than the stock plate and has an integral square cut O-ring with no gasket required. OE covers are p...