The Eaton Fuller Countershaft Auxiliary Assembly, part number A-6840 or A6840, is a direct-replacement assembly for Eaton Fuller heavy-duty transmissions. The countershaft auxiliary assembly is a critical drivetrain component, supporting gear engagement in the auxiliary section of the transmission. If you need to confirm this part is correct for your specific transmission model or serial number, call Pro Gear and Transmission before ordering. We carry genuine Eaton Fuller transmission components and can help you track down the right part for your application.
Interchanges:
- Fuller A-5899
- Mack 3088-A5747
- Mack 3088-A5899
- Mack 3088-A6840
- Mack 4333-1691010C1
- Mack 4333-1691022C1
- Navistar 1691010
- Navistar 1691022
- Navistar 1691022C1
- Fuller A-5747
- Navistar 1691010C1
Features
Genuine Eaton Fuller countershaft auxiliary assembly
Part number A-6840 or A6840
Designed for the auxiliary section of Eaton Fuller heavy-duty transmissions
Direct-replacement assembly for countershaft service
Sold by Pro Gear and Transmission
Used in these Eaton Fuller models
