1900634 Tightener Belt Fits Caterpillar Models

One New Aftermarket Replacement Belt Tensioner (Tightener) for Caterpillar (Cat) Engines and Equipment

This aftermarket replacement belt tensioner fits a wide range of Caterpillar (Cat) engines and equipment. The tensioner maintains proper serpentine belt tension on the engine accessory drive, reducing belt wear and preventing slippage during heavy-duty operation. Replaces OEM part number 1900634 (also formatted as 190-0634).

Specifications

• Length: 208.3 mm
• Width: 104.1 mm
• Height: 86.4 mm
• Weight: 1.6 kg
• Material: Alloy steel construction

Compatible Models

Caterpillar Engines (Industrial / Truck): 3126, 3126B, 3126E, C6.6, C7, C9, C9.3, C-9, C10, C12, C15, C16, CX31-C9I, CX31-P600, TH31-C9I, TH31-C9P, TH31-E61

Caterpillar Motor Graders: 120K, 120K 2, 12K, 140K, 140K 2, 160K

Caterpillar Earthmoving Compactors: 815F II, 816F II

Caterpillar Wheel Dozers: 814F II

Caterpillar Wheel-Type Loaders: 938H

Caterpillar Track-Type Loaders: 953D, 963D, 973D

Caterpillar Track-Type Tractors: D5R LGP, D5R XL, D6K LGP, D6K XL, D6N

Caterpillar Asphalt Pavers: AP-500E, AP-555E, AP-600D, AP-655D, BG500E, BG555E, BG600D, BG655D

Caterpillar Excavators: 374, 395

Caterpillar Forest Products: 521, 522, 573, 584, 584HD

Caterpillar Agricultural / Challenger MT Series: MT735, MT745, MT755, MT765, MTC735

Replaces Part Number(s):

1900634, 190-0634, 1253725, 2201209, 1238381, 2016699

Aftermarket Interchange Numbers

APV3046, Gates T38507

New aftermarket replacement part - not remanufactured, not used.