Sierra 3500 HD

Factory coolant hoses are prone to abrasions and cracking over time that could lead to cooling system failures, but this Duramax 6.6L radiator pipe kit is the perfect way to ensure that your cooling system is reliable for years to come. This upper...

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...

Once you've installed an aftermarket Fuel Filtration System such as our FASS Titanium Series, the use of the factory fuel filter is no longer required and can be removed. Because your Duramax factory fuel filter is located after our filtration System you...

Flow and Performance:Constructed of 3"mandrel-bent aluminum tubing for maximum flow then, powder-coated for a nice finish. The high-temp wrinkle-black powder-coating also insulates the tubes from engine heat and protects the tube from corrosion. Also...

Our FASS Signature Series Adjustable Diesel Fuel Pumps are designed to be the most versatile high performance fuel pump on the market that allows for adjustable fuel pressures to meet the demand of high performance GM Duramax 6.6L applications...

Protect your fenders from debris with Putco stainless steel Hex mud skins. These units are the perfect blend of style and protection for your truck from rocks, mud, snow, and anything the elements can throw at you and your ride. Choose from a front pair,...

The Sinister Diesel LML Intake Bridge replaces the restrictive stock piping on your GM 6.6L Duramax Diesel with larger diameter CNC mandrel bent aluminum tubing that optimizes airflow after the throttle valve and heater. The increased diameter of the air...

Perfect Fit:Utilizes the factory mounting locations for a hassle-free installation. Includes high quality stainless steel T-bolt clamps and heavy-duty 5-Ply polyester reinforced couplings for strength and durability. The tubes also work with OEM or aFe's...

Protect your fenders from debris with Putco stainless steel Hex mud skins. These units are the perfect blend of style and protection for your truck from rocks, mud, snow, and anything the elements can throw at you and your ride. Choose from a front pair,...

Protect your fenders from debris with Putco stainless steel Hex mud skins. These units are the perfect blend of style and protection for your truck from rocks, mud, snow, and anything the elements can throw at you and your ride. Choose from a front pair,...

Protect your fenders from debris with our stainless steel Hex mud skins. These units are the perfect blend of style and protection for your truck from rocks, mud, snow, and anything the elements can throw at you and your ride. Choose from a front pair,...

Improve the power and efficiency of your Duramax with the Mishimoto hot-side intercooler pipe and boot kit. The factory hot-side pipe for the 2011-2016 Chevrolet/GMC 6.6L Duramax LML features numerous restrictive bends and chokes the engine with 2.5"...