Cat® Right Hand Arm Assemblies are positioner kickout components that follow the reciprocating motion of the end rod. They are made from materials that are matched to the fluids, temperatures and pressures found in Cat engines. The materials resist wear and extrusion and provide superior resistance to strain. Quality you expect for your equipment. It is an OEM direct replacement part.Application:Cat® Arm Assemblies are application specific. Consult your owner’s manual or contact your local Cat Dealer for more information.