Features: Fan Clutch Holder Set(2pc) For BMW For the purpose to remove water pump on models with temperature dependent viscosity drive fans. 32mm Wrench/ Fan Clutch Wrench Fan Clutch Wrench removes lock nuts on the thermo-Viscous fans found on Ford, BMW many vehicles. Size : 32mm Made from tempered pressed steel Fan Clutch Holder allows the technician to hold the water pump pulley in place while loosening the radiator fan. Fan Clutch Holder fits BMW engine models : M10,M20 ,M30,M40, M44,M50,M52,M52TU,M54,M56,M60, M70,M73, S14, S38, S50B30, S50B32, S54.