Description
The Meritor B39882-1 (also listed as B398821) is a genuine OEM service gear set for Meritor drive axles running a 4.56 ratio. The ring gear carries 41 teeth; the pinion runs 9 teeth and is identified as part number 39887K. Compatible axle models include RDXX160, RDXX164, RPXX160, and RPXX164. This gear set is a direct-fit differential component, not a generic aftermarket substitute. Cross-references include 8235B398821, B398821456S, and TDAB398821. Call us to confirm proper fit for your specific axle configuration before ordering.
Features
Genuine Meritor OEM differential service gear set
4.56 ring-and-pinion ratio
41-tooth ring gear
9-tooth pinion (Meritor pinion P/N 39887K)
Fits Meritor axle models RDXX160, RDXX164, RPXX160, and RPXX164
Cross-references: 8235B398821, B398821456S, TDAB398821
Tech Specs
- Ratio: 4.56
- Gear (Ring) Tooth Count: 41
- Pinion Tooth Count: 9
- Pinion Part Number: 39887K
- Axle Make: Meritor
- Axle Models: RDXX160, RDXX164, RPXX160, RPXX164
