01-04 Duramax LB7 PPE Stainless Steel Thermostat Housing Finish:Raw Direct bolt-on replacement to factory

Direct bolt-on replacement to factory exhaust manifolds

The cooling continuesinside as 5/8-inch internal fins perform as heat sinks to draw away unwantedhigh fluid temps

If the #4 cam bearing spins even slightly in the block it can cause immediate turbo damage

A 100% CNC-machined 6061 aluminum coupling allows you to retain your trucks factory emissions components and allows for a quick install

is the top recommended upgrade for your 2001-2010 Chevy/GMC Duramax diesel

01-04 Duramax LB7 PPE Stainless Steel Thermostat Housing Finish:Raw Direct bolt-on replacement to factoryRust is the enemy of your coolant system. Upgrade your rusty OEM thermostat housing cover with a Cast 304 Stainless Steel Thermostat Housing Cover from PPE. This direct bolt on replacement adds style and function to your engine bay. The stainless steel material is corrosion and rust resistant. We've engineered an easy way of bleeding off air from your coolant system by adding our Black Anodized Aluminum Bleeder Screw with a built in air channel and a