The Eaton Fuller Cotter Pin, part number X4-308 or X4308, is a genuine OEM manual transmission component used in Eaton Fuller drivetrain assemblies. Cotter pins serve as critical fastening and retention hardware, securing castellated nuts, clevis pins, and other fasteners against loosening under vibration and load. Sourced as an individual unit, this part carries the Eaton vendor reference HFX4-308 and is also cross-referenced as X-4-308. Pro Gear and Transmission supplies genuine Eaton Fuller parts for fleets and independent shops alike. Call us to confirm this is the correct pin for your specific transmission application.
Interchanges:
- Mack 29AX3
- Mack 3088-X4308
- Mack 29AX2
- Mack 3309-29AX3
- Mack 25092821
Features
Genuine Eaton Fuller OEM cotter pin
Fits Eaton Fuller manual transmission assemblies
Sold as individual unit (each)
Cross-referenced as X-4-308 and HFX4-308
Category: Manual Transmission Components
