The Eaton Fuller auxiliary mainshaft, part number 4300904, is a direct OEM replacement shaft for 18-speed auxiliary transmission assemblies. This shaft services the auxiliary section of Eaton Fuller heavy-duty multi-speed transmissions, restoring proper power transfer through the auxiliary gear train. Sourced directly as a genuine Eaton part, this is a precision-machined component built to OEM specifications. Available from Pro Gear and Transmission. Not sure this is the right shaft for your application? Give us a call to confirm proper fit before ordering.
Interchanges:
- 3088-4300904
- 35540294
- 3947270
- 4300904-SP
- 900158
- F6HZ7061CA
- FUL-4300904
- SE322
- ZBF4300904
Features
Genuine Eaton Fuller OEM part number 4300904
Fits 18-speed auxiliary transmission applications
Replaces auxiliary mainshaft in Eaton Fuller multi-speed auxiliary gear trains
Sold individually as a single unit replacement component
Tech Specs
- Part Number: 4300904
- Application: 18-Speed Auxiliary Transmission
- Component: Auxiliary Mainshaft
- Sold As: Each
