The Eaton Fuller countershaft drive gear, part number 4305903, is a genuine OEM manual transmission gear designed for heavy-duty applications. This part is also cross-referenced under EF62890HP, FUL4305903, and HF4305903, making it straightforward to verify across service records and parts tickets. The countershaft, or countershift gear, transfers input shaft torque through the gear train and is a key internal component in Eaton Fuller manual transmissions. Call us to confirm proper fit for your specific transmission model and application.
Features
Genuine Eaton Fuller OEM countershaft drive gear
Part number 4305903, also cross-referenced as EF62890HP, FUL4305903, and HF4305903
Designed for Eaton Fuller heavy-duty manual transmissions
Countershaft gear type: drive, countershaft position
Sold individually (each unit)
