2017-19. 6.6 LITER DIESEL. Cooler gasket. EGR VALVE & RELATED COMPONENTS. EGR Cooling Pipes. Exhaust Gas Recirculation (EGR) Cooler Gasket. Gasket for Coolant system. Gasket used to seal the EGR Cooler Coolant Pipe. Gas (EGR) Coolant. Engine Coolant. Inlet. Outlet. Included with: Inlet Pipe, Outlet Pipe.