Four Pin Fan Clutch Wrench.
The four strengthened chromoly billet bulkhead pins in this tool give the professional technician greater durability.
For 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010 GM 6.6L Duramax LB7 LLY LBZ
The four strengthened chromoly billet bulkhead pins in this tool give the professional technician greater durability than tools presently available on the market. These pressed on pulleys have holes instead of bolt heads for use in securing the pulley from rotating while removing or installing the fan clutch assembly. With the use of a 48mm open-end wrench the technician can loosen and tighten the fan clutch on many 2000 and later GM trucks.
