Fan Clutch Wrench 36 x 48mm & Holder. Use both wrench and holder to remove and install fan clutch assemblies when replacing water pumps or doing other engine services on 5.7L HEMI engine. Wrench size: 36 x 48mm (17/8" x 17/16"). Removes and installs fan clutch assemblies, and also for replacing water pumps. Applications: RAM, Durango, Magnum, Charger, Challenger, 300, Aspen, Grand Cherokee & Commander.