3777037 Rebuild Kit Fits Caterpillar

One New Aftermarket Replacement Water Pump Rebuild Kit Fits Caterpillar (Fits CAT) Engines and Equipment

This water pump rebuild kit is a direct aftermarket replacement Fits Caterpillar (Fits CAT) equipment powered by 3400, 3406, 3408, 3412, 3456, 3516, C-15, C-16, C-18, and related engine families. The kit contains the internal components needed to restore a worn or leaking water pump to proper operating condition, helping maintain engine cooling system performance across a wide range of Fits CAT construction, mining, pipelayer, and wheel scraper applications. Designed for pumps equipped with roller bearings and a unitized seal.

Compatible Models

Fits Caterpillar Motor Graders: 16G, 16H NA, 24H, 24M

Fits Caterpillar Engines (Industrial/Truck): 3126, 3406, 3406B, 3406C, 3406E, 3408, 3408B, 3408C, 3408E, 3412, 3412C, 3412D, 3412E, 3456, 3516, C-12, C-15, C-16, C-18

Fits Caterpillar Excavators / Shovels: 375, 375 L, 385B, 5080, 5090B, 5110B

Fits Caterpillar Pipelayers: 578, 583R, 583T, 587R, 587T, 589

Fits Caterpillar Wheel Tractor-Scrapers: 621B, 621E, 621F, 621G, 623G, 627F, 627G, 631D, 631E, 631G, 633E II, 637D, 637E, 637G, 651B, 651E, 657E, 657G

Fits Caterpillar Off-Highway Trucks: 769C, 769D, 770, 772, 773B, 773D, 773E, 773F, 775D, 775E, 775F, 777C, 777D, 777F

Fits Caterpillar Compactors / Wheel Dozers: 814B, 824C, 824G, 824G II, 824H, 834B, 834G, 834H, 844, 844H, 854K

Fits Caterpillar Underground Articulated Trucks: AD30, AD45B, AD55

Fits Caterpillar Wheel Loaders: 980C, 980F, 980G, 980G II, 980H, 988B, 988F II, 988G, 988H, 990, 990 II, 990H, 992C, 992D, 992K, 993K

Replaces Part Number(s):

3777037, 3777037-A, 377-7037

Aftermarket Interchange Numbers

M-3777037 (Interstate-McBee), 1386744

New aftermarket replacement part - not remanufactured, not used.