The Eaton bearing cup, part number 139978, is a heavy-duty axle differential bearing race used in the differential assemblies of commercial trucks. This part is also cross-referenced under Spicer and carries alternate part numbers including 139978ETN, ETN139978, and 2719-139978. The bearing cup seats and supports the differential bearing in axle applications where precise race seating is critical to differential longevity. Sold by Pro Gear and Transmission. Call us to confirm proper fit for your specific axle and differential configuration before ordering.
Features
Axle differential bearing race for heavy-duty commercial truck applications
Cross-references: 139978ETN, ETN139978, 2719-139978, 2719139978, EH139978
Also catalogued under the Spicer brand as an axle differential bearing cup
Sold individually (unit of measure: each)
Sold by Pro Gear and Transmission
Tech Specs
- Part Number: 139978
- Alternate Part Numbers: 139978ETN, ETN139978, 2719-139978, 2719139978, EH139978
- Part Type: Bearing Cup (Axle Differential Bearing Race)
- Brand: Eaton / Spicer
- Unit of Measure: Each
