The Eaton Fuller Mainshaft Key, part number 4300974, is a genuine OEM transmission component designed for Eaton Fuller manual transmissions. This mainshaft key serves as a critical locating and torque-transfer component within the transmission mainshaft assembly, keeping gears and hubs properly indexed on the shaft. Eaton Fuller is the industry standard for heavy-duty manual transmissions, and using a genuine OEM key helps maintain the integrity of the mainshaft assembly. Available from Pro Gear and Transmission. Call us to confirm proper fit for your application.
Interchanges:
- HF4300974
Features
Genuine Eaton Fuller OEM part number 4300974
Designed for Eaton Fuller manual transmission mainshaft assemblies
Functions as a locating and torque-transfer key on the mainshaft
Sold individually as a single unit
