The Eaton Fuller Mainshaft Key Special, part number 4306293 or HF4306293, is a manual transmission mainshaft key designed for heavy-duty manual transmission applications. This is a special-profile key that seats along the mainshaft to index and retain synchro or gear components in the correct position. The cross-reference numbers 3088-4306293 and FUL4306293 confirm this is the same part sold under multiple Eaton catalog prefixes. At 6.7 in. in length, the key fits the mainshaft bore with precision. Call us to confirm proper fit for your specific transmission before ordering.
Features
Genuine Eaton Fuller mainshaft key for heavy-duty manual transmissions
Special profile design for mainshaft synchro or gear retention
6.7 in. length
Cross-references: 3088-4306293, FUL4306293, HF4306293
Sold individually (unit of measure: each)
Available from Pro Gear and Transmission
Tech Specs
- Part Number: 4306293
- Alternate Part Numbers: HF4306293, FUL4306293, 3088-4306293
- Length: 6.7 in.
- Application: Manual transmission mainshaft (special key type)
- Unit of Measure: Each
