Product Details: The Haldex Remanufactured WABCO Air Brake Compressor Cylinder Head Assembly is designed to provide consistent quality and reliable performance. This unit is engineered to last longer in service and is a cost-effective option that installs easily and works just as good as the brand-new unit. The assembly includes a new lower head assemblies, new gaskets and bolts, and is designed for a bore size of 85mm. With Air Brake Compressor Cylinder Head Assembly, you can be sure that your vehicle will be running smoothly and safely. FleetPride is your First Click in Heavy Duty®.