The Meritor A40104-5 or A401045 is a differential service gear set engineered for Meritor RRXX160 and RSXX160 drive axles. This set delivers a 5.38 gear ratio using a 43-tooth ring gear paired with an 8-tooth pinion (Meritor pinion reference 41287). The 5.38 ratio is a common highway-oriented selection for these axle models, balancing fuel economy with pulling capability. Pro Gear and Transmission sells this as a genuine Meritor part. Call us to confirm proper fit for your axle configuration before ordering.
Interchanges:
- 1681817C91
- 3130815
- 81170902
- 8235A401045
- 940121
- 9631A401045
- A401045538
- A401045538S
- A401045R15
- A401045RI
- ATIA401045
- ERA401045
- F0HZ4209N
- HRA401045
- S11470
- TDAA401045
Features
5.38 gear ratio differential service gear set
43-tooth ring gear, 8-tooth pinion (pinion ref. 41287)
Fits Meritor RRXX160 and RSXX160 drive axle models
Genuine Meritor OEM part number A40104-5 or A401045
Tech Specs
- Gear Tooth Count: 43
- Ratio: 5.38
- Pinion Tooth Count: 8
- Axle Model: RRXX160, RSXX160
- Pinion: 41287
