The Eaton Countershaft, part number 4300243B or 4300243-BULK15, is a genuine OEM gear component for heavy-duty manual transmission assemblies. Countershafts are a core drivetrain element, carrying torque through the gear cluster between the input and output shafts. This part is sold individually and classified under NMFC Code 121875 for Transmission and Clutch Parts, Gears. The countershaft meets OEM specifications for the applications it serves. Call us to confirm proper fit for your specific transmission before ordering.
Features
Genuine Eaton OEM countershaft for heavy-duty manual transmissions
Part number 4300243B, also cross-referenced as 4300243-BULK15
Sold individually (unit of measure: each)
Classified under NMFC Code 121875 for Transmission and Clutch Parts, Gears
Direct OEM-specification replacement for the gear train
Tech Specs
- Part Number: 4300243B
- Vendor Part Number: 4300243-BULK15
- Unit of Measure: Each
- NMFC Code: 121875 - Miscellaneous Truck Parts, Transmission/Clutch Parts, Gears
