The Eaton Fuller Countershaft, part number 4303877, is a genuine Eaton manual transmission component designed for heavy-duty truck applications. This countershaft fits within the manual transmission assembly and is sold individually (unit of measure: each). Cross-reference numbers for this part include 4303876, 4303877-SP or 4303877SP, FUL4303877, and ZBF4303877. If you are sourcing by an aftermarket number such as HF4303877, this is the same part. Pro Gear and Transmission carries genuine Eaton Fuller drivetrain components. Not sure this is your part? Give us a call to confirm proper fit for your transmission.
Features
Genuine Eaton Fuller manual transmission countershaft
Sold as an individual unit (each)
Part number 4303877, also referenced as 4303877-SP or 4303877SP
Cross-references include 4303876, FUL4303877, HF4303877, and ZBF4303877
Designed for heavy-duty manual transmission applications
Used in these Eaton Fuller models
