The Eaton Fuller countershaft overdrive gear, part number 4300191, is the item 9 OD gear in the countershaft assembly for a wide range of Eaton Fuller heavy-duty manual transmissions. This gear carries a superseding history from 4305071 and 4305666, and it appears as the direct replacement across 38 transmission models spanning the RTAO, RTLO, RTLOF, RTO, RTX, and RTXF series. Two are required per countershaft assembly. Dimensions measure 8.5 in. x 8.5 in. x 1.5 in. Call us to confirm proper fit for your specific transmission build.
Interchanges:
- 19639
- 21262
- 3088-4300191
- 3131236
- 35530548
- 4305071
- 4305666
- 61830
- 61830HP
- 61830HP-010
- EF61830
- EF61830HP
- EF61830HP-010
- SA807
- SAS4305071
- ZBF4300191
- Navistar 1685627C1
- Rockwell 3892-T-5142
- Mack 3088-4305071
- Mack 3088-4305666
- Mack 4333-1685627C1
- Navistar 1685627
- Mack 8235-3892T5142
Also included in these kits
Features
Eaton Fuller OD (overdrive) countershaft gear, item position 9 in the countershaft assembly
Supersedes part numbers 4305071 and 4305666
Two units required per countershaft assembly
Dimensions: 8.5 in. diameter x 1.5 in. height
Fits 38 transmission models including RTAO, RTLO, RTLOF, RTO, RTX, and RTXF series
Tech Specs
- Part Number: 4300191
- Part Type: Countershaft Overdrive (OD) Gear
- Brand: Eaton Fuller
- Supersedes: 4305071, 4305666
- Quantity Required Per Countershaft Assembly: 2
- Dimensions: 8.5 in. x 8.5 in. x 1.5 in.
Additional Information
Transmission Model Fitment (per Eaton Fuller illustrated parts manuals): RTAO-14710C-AC, RTAO-14710C-AS, RTAO-15710C-AC, RTAO-16710C-AC, RTAO-16710C-AS, RTLO-14718B, RTLO-14918B-T2, RTLO-14918B, RTLO-16713A-T2, RTLO-16713A, RTLO-16718B, RTLOF-14718B, RTLOF-14918B-T2, RTLOF-16713A, RTLOF-16718B, RTO-14710C-AS2, RTO-14910C-AS2, RTO-14910C-AS3, RTO-16710C-AS2, RTO-16910C-AS2, RTO-16910C-AS3, RTX-13709H, RTX-14609B, RTX-14709B, RTX-14709H, RTX-14710C, RTX-15710C, RTX-16709B, RTX-16709H, RTX-16710C, RTXF-13709H, RTXF-14609B, RTXF-14709H, RTXF-14710C, RTXF-15710C, RTXF-16709B, RTXF-16709H, RTXF-16710C. This gear also appears in kit references K-3694, K-3699, K-3700, K-3745, S-3024, and S-3025 where noted in the applicable manual groups.Used in 102 Eaton Fuller models
