XDP HD Billet Coolant Block-Off Plate XD344

Put the  HD Billet Coolant Block-Off Plate XD344 in your GM 6.6L Duramax to permanently eliminate coolant leaks from the rear housing on your Duramax engine. The factory cover uses a gasket and over time the plate can warp, and the gaskets can corrode causing coolant leaks. The XD344 is made from CNC-machined billet aluminum and features a built-in O-ring seal for a leak-free installation. Each coolant block-off plate comes with a black anodized finish and is ready to install re-using your factory hardware. 

Features

Manufacturer Warranty*
2 Year / Unlimited Mileage