DZ93189583513 Heavy Duty Intake Heater Relay Cover This heavy duty intake heater relay protection cover is made for SHACMAN X3000 and F3000 trucks that run long hours on dusty or wet sites. It shields the intake heater relay and terminals on the engine, keeping grit and moisture out of the relay box and the wiring below it. The cover is a direct fit for the OEM relay box and uses the same mounting points, so it installs without modification. The thicker wall holds its shape
