Universal fan belt adjustment wrench services for radiator fans and pulley belts. It also can be used for loosening the A/C idler pulley tensioner lock nuts for A/C belt adjustment or replacement. Also contains 2.5 mm, 8 mm, and 10 mm Allen keys.

BMW fan clutch holding holds the water pump pulley in place while loosening the radiator fan. Works on BMW M10, M20, M30,and other late model vehicles. The BMW fan clutch wrench is used to remove and install the thermo-viscous fan on BMWs.