One New Aftermarket Replacement Bull Gear for Dresser / Fits International Harvester (IH) TD-Series Dozers and 125-Series Crawler Loaders

This aftermarket replacement final drive bull gear fits Dresser and Fits International Harvester (IH) TD8C, TD8E, TD-series crawlers and 125C and 125E crawler loaders. The bull gear is a critical final drive component that transfers torque from the drive pinion to the sprocket axle, delivering tractive power to the tracks. Replacing a worn or damaged bull gear restores proper final drive engagement and helps prevent further drivetrain damage.

Specifications

• 81 Teeth
• 53 Splines

Compatible Models

Dresser / Fits International Harvester (IH) Dozers: TD8C, TD8E

Dresser / Fits International Harvester (IH) Crawler Loaders: 125C, 125E

Replaces Part Number(s):

621116C2, 621116C1

New aftermarket replacement part - not remanufactured, not used.