The Eaton Fuller 2nd speed mainshaft gear, part number 4301687, is a direct-fit OEM replacement for heavy-duty manual transmissions requiring this gear position. This gear is also cataloged under cross-reference numbers including 12549794, 5302340, F5HZ7176C, and ZBF4301687, making it a common solution across multiple sourcing channels. Sourced directly from Eaton Fuller, it meets the same manufacturing standards as the original unit. Pro Gear and Transmission carries genuine Eaton Fuller drivetrain components. Call us to confirm proper fit for your specific transmission application before ordering.
Features
Eaton Fuller OEM part number 4301687
Second speed position mainshaft gear
Cross-references: 12549794, 5302340, F5HZ7176C, ZBF4301687, 35510063
Alternate part numbers: HF4301687, FUL-4301687
Sold as individual gear (each)
