The Eaton Fuller Countershaft Assembly, part number A-6689 or A6689, is a direct Eaton Fuller transmission component designed for heavy-duty drivetrain applications. The countershaft assembly is a core internal transmission part, carrying the cluster gear set and transferring power between the input and output shafts within the gearbox. This part is noted as an obsolete part number, so availability may be limited. Pro Gear and Transmission carries genuine Eaton Fuller parts. Call us to confirm this is the correct assembly for your transmission before ordering.
Features
Genuine Eaton Fuller countershaft assembly
Part number A-6689 or A6689
Obsolete Eaton Fuller part number, verify availability before ordering
Core internal transmission component for Eaton Fuller gearboxes
Sold by Pro Gear and Transmission
