JZP-0.5C Fuel Resistant Rubber Shock Absorber for Engine and Machinery Mounts The JZP-0.5C is a pre-compressed rubber-to-metal vibration isolator built for equipment that runs on modern fuels and must stay quiet under load. Part of the JZP-C platform, it combines a solid rubber damping element with a metal housing to deliver stable isolation at a nominal load of 0.5 kg. For engines, generators, pumps and fuel-system machinery, it keeps vibration and noise under control while