1900643 Tightener- Fits Caterpillar 1441102 MT835 MT845 MT855 MT865 MTC835 CP-44

One New Aftermarket Replacement Belt Tensioner Fits Caterpillar (Fits CAT) Challenger, Excavator, and Multi-Application C-Series Engines

This aftermarket replacement belt tensioner (also referred to as a belt tightener) maintains proper serpentine or accessory drive belt tension on Fits Caterpillar (Fits CAT) C-series diesel engines across a wide range of Challenger rubber track tractors, excavators, motor graders, track loaders, compactors, and other Fits CAT equipment. Replaces OEM part numbers 1900643 (190-0643) and 1441102 (144-1102).

Compatible Models

Fits Caterpillar Challenger: MT835, MT845, MT855, MT865, MTC835, MTC845, MTC855, MTC865

Fits Caterpillar Excavator: 322C, 322C FM, 325C, 325C FM, 325C L, 325D L, 329D L, 330C, 330C FM, 330C L, 330C LN, 330C MH, 330D, 330D FM, 330D L, 330D LN, 330D MH, 336D, 336D L, 336D LN, 336D2, 336D2 GC, 336D2 L, 336D2 L XE, 336D2 LXE, 336D2 XE, 340D L, 340D2 L, 345B, 345B II, 345B II MH, 345B L, 365B, 365B II, 365B L

Fits Caterpillar Wheeled Excavator: M325C MH, M330D, W345B II

Fits Caterpillar Motor Grader: 12H, 120H, 135H

Fits Caterpillar Track-Type Tractor: D5N, D6N, D9T

Fits Caterpillar Track Loader: 953C, 963C

Fits Caterpillar Track Feller Buncher: 2290, 2390, 2391, 2491, 2590, 511, 521, 521B, 522, 522B, 532, 541, 541 2, 551, 552, 552 2, TK711, TK721, TK722, TK732, TK741, TK751, TK752

Fits Caterpillar Integrated Toolcarrier: IT38G II, IT62G II, IT62H

Fits Caterpillar Wheel Loader: 924G, 924H, 924HZ, 928H, 928HZ, 930H, 938G II, 950G II, 950H, 962G II, 962H, 966G II, 972G II

Fits Caterpillar Wheel Tractor-Scraper: 637D

Fits Caterpillar Pipelayer: 561N

Fits Caterpillar Vibratory Compactor: CP-44, CP-56, CP-64, CP-76, CS-44, CS-56, CS-64, CS-74

Fits Caterpillar Wheel Harvester: 570B

Fits Caterpillar Logger: 322C

Fits Caterpillar Engine - Industrial/Machine/Truck: 3126B, C7, C-9, C9, C13, C15, C18, CX31-C9I, CX31-C13I, CX31-P600, TH31-C9I, TH31-C9P, TH31-E61, TH35-C13I, TH35-E81

Replaces Part Number(s):

1900643, 190-0643, 1441102, 144-1102, CA1900643, CA1441102

Aftermarket Interchange Numbers

375-8345, 3758345, 135-2151, 1352151, 49575, 89446, RE506352, RE550581, 1841760C1, 38620

New aftermarket replacement part - not remanufactured, not used.