1539023 Gear Fits Caterpillar Models
1539023 Gear Fits Caterpillar Models
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One New Aftermarket Replacement Water Pump Drive Gear for Caterpillar (Cat) Engines and Equipment
This aftermarket replacement 74-tooth water pump drive gear (replaces OEM part number 1539023) fits a wide range of Caterpillar engines and equipment, including the 3406, 3456, and C15 engine families. The gear is a precision-fit component of the engine cooling system, driving the water pump to circulate coolant and maintain safe operating temperatures.
Specifications
- Number of Teeth: 74
- Dimensions: 9.8 x 9.3 x 3 in. (approx.)
- Weight: approx. 6.8 lbs.
Compatible Models
Caterpillar Engines: 3406, 3456, C15
Caterpillar Motor Graders: 24M
Caterpillar Pipelayers: 583T, 587T
Caterpillar Wheel Tractor-Scrapers: 621B, 621G, 623G, 627F, 627G, 631D, 631E, 631G, 633E II, 637D, 637E, 637G, 651B, 657E, 657G
Caterpillar Off-Highway Trucks: 770, 772
Caterpillar Compactors / Wheel Loaders: 824C, 824G, 824G II, 824H, 825G II, 825H, 826G II, 826H, 834G, 834H, 836G
Replaces Part Number(s):
1539023, 153-9023, CA1539023
Aftermarket Interchange Numbers
1950319, 195-0319, 381900, CAP381900
New aftermarket replacement part - not remanufactured, not used.



