Caterpillar Cat D5C III TRACK-TYPE TRACTOR Dozer Bulldozer (Prefix 6ZL) Service Repair Manual (6ZL00001 and up) Caterpillar Cat D5C III TRACK-TYPE TRACTOR Dozer Bulldozer (Prefix 6ZL) Service Repair Manual (6ZL00001 and up).pdf (3.04 MB)