SPECIFICATIONSCaterpillar Carrier Replacement suitable for Caterpillar D4H and D5C (7T8170) 7T-8170.Alternative (cross code) numbers: CA7T8170, 7T-8170, 7T8170, Caterpillar 7T8170 CARRIER-PLANETARY.Weight: 3 pounds (1 kg).COMPATIBLE MODELS FOR PART NUMBER 7T-8170:- TRACK-TYPE TRACTOR: 3, 4, 4A, 4P, 4S, 53, 54, 55, 5A PAT D4H, D5C, D5C III, D5C PAT, D5C PATLGP.- MULTIFUNCTIONAL LOADER WITH ATTACHMENT KIT: IT28B.- WHEEL-TYPE LOADER: 926, 926E.- TRACK LOADER: 939.- SKIDING CATERPILLAR TRACTOR: 4P, 54H, D4HTSK II.Weight: 4 pounds.Length: 17.8 cm.Width: 17.8 cm.Depth: 6 cm.