Material: Carbon steel BMW engine models (for example): M4, M10, M20, M30, M40, M40, M50, M52, M52TU, M54, M60, M60, M70, M73, S14, S38, S54, S50B30, S50B32 Delivery includes 1 fan clutch nut wrench and 1 water pump bracket This BMW water pump holder and fan clutch wrench removal tool kit is used to disassemble the water pump on models with temperature dependent viscosity drive fans. It is suitable for modelsof BMW engines such as M4, M10, M20, M30, M40, M44, M50, M52, M52, M52TU, M54, M56, M56, M60, M70, M73, S14, S38, S54, S54, S50B30 and S50B32.nbsp ; This tool kit comes with a fan clutch nut wrench to remove the lock nuts on thermo-viscous fans and a water pump bracket that allows the technician to hold the pump pulley water in placeby loosening the radiator fan. Carbon steel gives these tools great strength and durability.