Kent-Moore J-41240-2 for GM Fan Clutch
Fan Clutch Remover and Installer
Some truck engines will utilize a fan clutch which threads onto the water pump instead of bolting to the pump flange. J-41240 is used with 1/2″ drive breaker bar for removal and to achieve proper torque during installation
One reference indicates it is a special tool for GM trucks.
See it here […]