The Eaton Fuller mainshaft key, part number 4300975, is a manual transmission component used in synchro key applications on Eaton Fuller-equipped trucks. Listed under Eaton's manual transmission synchro key category, this key fits the main shaft and is sold as an individual unit. Cross-reference numbers for this part include 3088-4300975 and F2HZ7B220B, which may help confirm a match against your existing parts records. Not sure this is the right key for your transmission? Call us to confirm proper fit before ordering.
Features
Genuine Eaton Fuller main shaft key for manual transmissions
Part number 4300975, also referenced as HF4300975
Cross-references: 3088-4300975, F2HZ7B220B, FUL4300975, ZBF4300975
Sold as individual unit (each)
Fits Eaton Fuller manual transmission synchro key applications
