The Eaton Fuller Countershift Gear, part number 21264, is a genuine Eaton Fuller transmission component sold by Pro Gear and Transmission. The countershift gear is a core element of the Eaton Fuller gearbox, working within the countershaft assembly to transfer torque and maintain gear mesh across the transmission's range. If you are sourcing this part by number and need to confirm it matches your specific Eaton Fuller transmission model, call us directly before ordering. Pro Gear and Transmission carries genuine Eaton Fuller drivetrain parts for heavy-duty truck applications.
Interchanges:
- 19623
- 4300247
- 5929
- 62910
- EF62910
- Mack 3088-19623
- Mack 3088-21264
- Mack 4333-591869C1
- Navistar 591869
- Navistar 591869C1
Features
Genuine Eaton Fuller countershift gear
Part number: 21264
Functions within the countershaft assembly to transfer torque through the transmission
Designed for Eaton Fuller heavy-duty truck transmissions
Call Pro Gear and Transmission to verify fitment for your specific transmission model
Used in 105 Eaton Fuller models
