The Eaton Fuller Mainshaft Gear, part number 21221, is a genuine Eaton Fuller transmission component designed for heavy-duty truck applications. The mainshaft gear is a critical drivetrain part, transferring torque through the transmission's main shaft assembly. Pro Gear and Transmission carries genuine Eaton Fuller parts for professional buyers who need the right part the first time. Not sure this is the correct gear for your transmission? Give us a call to confirm proper fit for your application before ordering.
Features
Genuine Eaton Fuller mainshaft gear
Part number 21221
Designed for heavy-duty truck transmission applications
Direct OEM replacement component
Sold by Pro Gear and Transmission
