The Eaton Fuller mainshaft gear, part number 20381, serves as the 2nd or 3rd speed mainshaft gear in Eaton Fuller 10-speed manual transmissions. It is listed in the illustrated parts manuals for a wide range of RTAO, RTX, and RTXF series units, including the RTX-11610, RTX-14710C, RTAO-16710C, RTXF-15710C, and more than 30 additional models in those families. Sold individually by Pro Gear and Transmission. Call us to confirm the correct application for your transmission model.
Interchanges:
- 20381-SP
- 62860
- E2HZ7102A
- EF62860
- S-6599
- FULLER 19268
- FULLER 4302104
- MACK 3088-19268
- MACK 3088-20381
- MACK 3088-4302104
- MACK 4333-591860C2
- NAVISTAR 591860
- NAVISTAR 591860C1
- NAVISTAR 591860C2
Features
Eaton Fuller OEM part number 20381
Fits 2nd or 3rd speed mainshaft position depending on transmission model
Compatible with RTX, RTXF, and RTAO series 10-speed manual transmissions (37 models listed)
Sold as individual gear (qty: 1 each)
