Lisle 44180 Fan Clutch Spanner Wrench For GM, Jeep and Dodge trucks, vans and SUVs with pressed on water pump pulleys The double-ended spanner wrench fits the holes in pressed-on water pump pulley Use the appropriate open end wrench to turn the fan clutch nut Use the appropriate open end wrench to turn the fan clutch nut (41740 36mm turning wrench works on many applications)