The Meritor A39906-5 or A399065 is a genuine OEM differential service gear set designed for RRXX160 and RSXX160 series axles. It delivers a 3.73 ring-and-pinion ratio using an 11-tooth pinion (Meritor pinion reference 41275) paired with a 41-tooth ring gear. This ratio is commonly selected for tandem drive axle applications where a balance between pulling power and highway speed is required. Cross-reference numbers for this set include 1681811C91, 3130835, 81170669, F0HZ4209C, S11779, and several others, making it a verified interchange for multiple OEM and fleet sourcing systems. Call us to confirm proper fit for your axle configuration before ordering.
1681811C91
3130835
81170669
8235A399065
9631A399065
A399065373S
A399065RI
ATIA399065
F0HZ4209C
S11779
TDAA399065
Non returnable item
Features
3.73 ring-and-pinion ratio for RRXX160 and RSXX160 series axles
11-tooth pinion (Meritor pinion reference 41275) paired with 41-tooth ring gear
Genuine OEM Meritor part number A39906-5 or A399065
Verified interchanges include 1681811C91, 3130835, 81170669, F0HZ4209C, and S11779
Sold by Pro Gear and Transmission
Tech Specs
- Pinion Tooth Count: 11
- Gear Tooth Count: 41
- Ratio: 3.73
- Pinion: 41275
- Axle Model: RRXX160, RSXX160
Additional Information
Cross-reference / interchange part numbers verified for this gear set:1681811C91
3130835
81170669
8235A399065
9631A399065
A399065373S
A399065RI
ATIA399065
F0HZ4209C
S11779
TDAA399065
