This kit features premium USA Made beehive valve springs, tool steel retainers, locks, spring seats, and valve stem seals for your 2001-2016 Durama...

Upgrade the valves in your Duramax to these premium stainless intake/inconel exhaust valves, nitride coated and swirl polished for lasting quality ...

KDD can port your heads, KDD can even develop new ports for new engines through our custom induction program! For most engines porting will start o...

Description OEM 3.900 Stroke No crank gear included Dual Damper Keyways Conservatively rated for 800HP Machined from 4340, through hardened steel ...

Mahle Clevite camshaft bearing set for 2001-Present GM 6.6 Duramax engines.

Introducing the ATS GM Billet Flex Plate - A Marvel of Strength and Precision, Crafted in Arvada, CO Elevate your transmission's performance with t...

BD's FleX-Plate is designed to reliably handle up to 1,500 lb-ft of torque. These units are forged billet, precision-balanced and SFI approved for ...

2011-2016 6.6 LML Duramax Lower engine gasket set.

FASS Fuel Systems offers industry leading technology in fuel filtration systems, providing 2011-2015 GM LML Duramax 6.6L diesel owners the cleanest...

A FASS Fuel Systems can be a beneficial upgrade for your GM Duramax LML diesel engine, this is because your Duramax doesn’t come with a factory lif...

Product Features BulletProof EGR Cooler, GM, 6.6L, Duramax, LML, 2011-2016, Front Manufactured by: Bullet Proof Diesel Stainless Steel Tubing Th...

Product Features BulletProof EGR Cooler, GM, 6.6L, Duramax, LML, 2011-2014, Rear Manufactured by: Bullet Proof Diesel Stainless Steel Tubing Tha...

From 2001 to 2016, Manton's Extreme Duty Billet Valve Bridges for 6.6L GM Duramax engines are designed for high stress applications. OEM bridges we...

This set comes with the gaskets needed to reseal the top end of the engine on the LML model years (Vin 8 or Vin L designation) **Does not come with...

This set comes with the gaskets needed to reseal the Bottom end of the engine on the LML model years

The ARP Custom Age 625 series head studs are the ultimate head stud for high horsepower and competition engines.  Rolled threads after hardening, c...

Fully TIG Welded, CNC machined billet steel exhaust manifolds- Finished in Black Ceramic Coat rated for 2000ºF- Includes new gaskets for manifold t...

Protect your truck with the technology high power diesel OEMs use. A Fluidampr performance diesel damper provides premium, broad range control of d...

Description WCP Duramax Street is a 1/2 thick one-piece Girdle designed to provide additional support to the bottom end of the Duramax Block by ty...

The affordable Wagler Duramax As-forged Street connecting rods are the perfect solution for a hot street truck making 1,000 HP or less. The as-forg...

Wagler Competition Products proudly presents their updated 6.6 Duramax connecting rods. These competitively priced connecting rods feature the ben...

This listing is for 2 shafts which is 1 full set Upgraded Rocker Shafts fit 01-16 Duramax

Wagler's WCPC6618 Billet Rocker Bridges improves horsepower on your 2001-2016 GM Duramax 6.6L. Forging made from 4340ACQ certified material. All dr...