Coolant Block-Off Plate XD344 Billet XDP Fuel Delivery~Fuel Filters the 11 screw in freeze

the 11 screw in freeze plugs ensure you'll never worry about a coolant leak under the valve cover again

To ensure maximum quality the studs are manufactured in an ISO/TS 16949 quality control facility

25 M12 x 1

XDP injectors are thoroughly remanufactured to guarantee that they meet or exceed current engine manufacturer specifications

Coolant Block-Off Plate XD344 Billet XDP Fuel Delivery~Fuel Filters the 11 screw in freezePut the XDP Billet Coolant Block Off Plate XD344 in your 2011 2017 GM 6. 6L Duramax to permanently eliminate coolant leaks from the rear housing on your LML and L5P 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