The Eaton Fuller Mainshaft Gear, part number 4304621 (also cross-referenced as HF4304621 and FUL4304621), is a manual transmission main shaft clutch gear designed for heavy-duty truck applications. This gear measures 8.25 in. in diameter and 1.13 in. wide, making it a direct-fit replacement for the mainshaft position in Eaton Fuller manual transmissions. Additional cross-references include 3088-4304621 and ZBF4304621, which can help confirm applicability across sourcing systems. A genuine Eaton Fuller part, available from Pro Gear and Transmission. Call us to confirm proper fit for your transmission.
Features
Eaton Fuller OEM part number 4304621
Also cataloged as HF4304621 and FUL4304621
Cross-references: 3088-4304621, ZBF4304621
Manual transmission main shaft clutch gear application
Dimensions: 8.25 in. diameter, 1.13 in. wide
Sold individually (each)
Tech Specs
- Part Number: 4304621
- Alternate Part Numbers: HF4304621, FUL4304621, 3088-4304621, ZBF4304621
- Application: Manual Transmission Main Shaft Clutch Gear
- Diameter: 8.25 in.
- Width: 1.13 in.
- Unit of Measure: Each
