Sierra 3500 HD

Ditch the grit. Get rid the dirtiest oil left in the valley of your stock pan from all your previous oil changes.The stock Duramax engine oil pan is stamped steel (very poor heat dissipation) and there is a valley in the pan which prevents your old oil...

Factory coolant hose "T" fittings are molded hose or made out of plastic and are prone to cracking at junctions, causing coolant loss. Replace your worn or leaky factory coolant hose system with PPE's Performance Silicone Coolant Hose Kit.Perfect for...

Factory coolant hose "T" fittings are molded hose or made out of plastic and are prone to cracking at junctions, causing coolant loss. Replace your worn or leaky factory coolant hose system with PPE's Performance Silicone Coolant Hose Kit.Perfect for...

Factory coolant hose "T" fittings are molded hose or made out of plastic and are prone to cracking at junctions, causing coolant loss. Replace your worn or leaky factory coolant hose system with PPE's Performance Silicone Coolant Hose Kit.Perfect for...

Specifically designed for use in conjunction with the factory oil cooler filter housing. This coolant pipe is custom fabricated with a heavy duty flange. 304 stainless steel construction prevents corrosion compared with OEM mild steel pipe which is prone...

The basic requirements for a properly running engine are fuel, air, compression, and spark. Before increasing the power of your LS engine, it's wise to ensure all maintenance is up to date and these processes are performing as intended. Weak spark from...

Mishimoto has released a direct-fit performance aluminum radiator for the Chevrolet/GMC 6.6L Duramax LML. Mishimoto performance radiators are manufactured from high-quality aircraft-grade aluminum with a 100-percent brazed aluminum core and polished end...

This BladeRunner Intercooler represents the next generation of intercoolers. The BladeRunner intercoolers utilize a 2.5" bar and plate design that is larger than stock and outflows OE style tube and fin core designs by 38%!End Tanks: The unique...

People know that billet aluminum is a lot tougher than plastic. That toughness means fewer problems over time. So replace your fragile plastic, factory air bleeder screw with the longer-lasting billet aluminum PPE Air Bleeder Screw. The damage and...

Factory coolant hose "T" fittings are molded hose or made out of plastic and are prone to cracking at junctions, causing coolant loss. Replace your worn or leaky factory coolant hose system with PPE's Performance Silicone Coolant Hose Kit.Perfect for...

Ditch the grit. Get rid the dirtiest oil left in the valley of your stock pan from all your previous oil changes.The stock Duramax engine oil pan is stamped steel (very poor heat dissipation) and there is a valley in the pan which prevents your old oil...

The Sinister Diesel Charge Pipe Kit for the Duramax LML 6.6L includes the intercooler pipe that connects the turbocharger compressor to the intercooler. This upgraded pipe is larger in diameter and has smooth mandrel bends to increase air flow velocity...