Caterpillar 6T-9509 Track-Type Tractor Door Hinge

Cat 6T-9509 is a genuine Cat door-hinge assembly (Door Group) for Track-Type Tractors, delivering a dedicated, OEM replacement hinge with a 68 mm hinge length designed to mount the cab door on compatible Cat machines. The hinge is fabricated from steel, structural steel, and alloy steel for durability, and its overall dimensions are 125.0 mm long, 40.0 mm wide, 68.0 mm high, and 14.0 mm thick, with mounting bolts that accept M10 hardware (3/8-16 in). In imperial terms, that translates to about 4.921 in long, 1.575 in wide, 2.677 in high, and 0.551 in thick. It is listed as compatible with a range of Track-Type Tractors, including D7R, D8R, D8R II, D7R XR, D8N, D7H, D7R II, D7R Series, D7R LGP, and associated ripper and pipe-layer configurations, making it suitable for cab-door replacement on those models. As a hinge assembly in the Door Group, 6T-9509 supports proper door alignment, hinge pin retention, and smooth opening and closing of the operator cabin door on eligible Cat machines.