The Meritor A39888-5 or A398885 is a genuine Meritor differential service gear set engineered for RRXX160 and RSXX160 series drive axles. It carries a 4.30:1 gear ratio, with a 43-tooth ring gear paired to a 10-tooth pinion (Meritor pinion reference 41281). This ratio is common in vocational and line-haul applications where pulling power takes priority over top-end road speed. Because it is a service gear set, it is the correct replacement component when restoring the differential carrier to factory gear geometry. Call us to confirm proper fit for your axle configuration.
Interchanges:
- 1681814C91
- 3130674
- 76880
- 81170678
- 8235A398885
- 9631A398885
- A398885430
- A398885430S
- A398885R15
- A398885RI
- ATIA398885
- ER76880
- F0HZ4209K
- HRA398885
- SA818
- TDAA398885
- Mack 4333-1681814C91
- Navistar 1681814
Features
4.30:1 gear ratio for RRXX160 and RSXX160 axle models
43-tooth ring gear paired with 10-tooth pinion
Meritor pinion reference number 41281
Genuine Meritor OEM differential service gear set
Tech Specs
- Ratio: 4.30
- Gear Tooth Count: 43
- Pinion Tooth Count: 10
- Axle Model: RRXX160, RSXX160
- Pinion: 41281