• 4 Pin Fan Clutch wrench used on domestic diesel vehicles.--Applications: GM 6.5L Diesel 2000-2001 Isuzu Duramax 6.6L Diesel 2001-2005 Isuzu Duramax with new pin straight slot fan 6.6L Diesel 2006 & later
• 4 Pin Fan Clutch wrench used on domestic diesel vehicles.