The Eaton Fuller mainshaft gear, part number 4303493, is a genuine Eaton main drive gear for manual transmissions. This part is also catalogued under cross-reference numbers including 3947322, 4303493-SP, 12472025, and ZBF4303493, making it traceable across multiple parts systems. Sourced directly from Eaton Fuller, it is built to the same specifications as the original drivetrain component it replaces. Pro Gear and Transmission carries genuine Eaton Fuller drivetrain parts for heavy-duty truck applications. Call us to confirm proper fit for your transmission before ordering.
Features
Genuine Eaton Fuller main shaft gear for manual transmissions
Part number 4303493, also listed as 4303493-SP and HF4303493
Cross-references: 12472025, 3947322, ZBF4303493, and 3088-4303493
Sold as individual unit (each)
Available from Pro Gear and Transmission
