The Eaton Fuller K-4257 is a transmission harness kit designed for shift control systems, specifically covering VCS and VMS configurations with Gen2 ECA. The kit ships as a complete assembly: one jumper speed sensor harness (4307037), one transmission harness (4308612), ten ty-raps (5559348), one tube of terminal lubricant (5564527), and two instruction letters (L-2010-14 and L-2011-14). Call us to confirm proper fit for your specific Fuller transmission application before ordering.
Interchanges:
- 3088-K4257
- FULK4257
Kit Contains:
| Qty | Part Number | Description |
| 1 | 4307037 | Speed Sensor Jumper Harness |
| 1 | 4308612 | Trans Harness |
| 10 | 5559348 | Ty Rap |
| 1 | 5564527 | Lube Wire Harness Kit |
Features
Covers VCS and VMS transmission shift control with Gen2 ECA compatibility
Includes jumper speed sensor harness (P/N 4307037) and main transmission harness (P/N 4308612)
Comes with ten ty-raps (P/N 5559348) and terminal lubricant (P/N 5564527)
Two instruction letters included: L-2010-14 and L-2011-14
