PPE Billet Aluminum Coolant Block-Off Plate 01-16 GM 6.6L Duramax

Eliminate coolant leaks from the rear housing on your Duramax engine with this billet aluminum block off plate from PPE. The rear housing on the Duramax engines are constructed of a thin plate and gasket that can corrode and the plate can warp causing a coolant leak over time. This block off plate from PPE is constructed of CNC machined billet aluminum and features a built in o-ring seal for a leak and warp free installation using the factory hardware.