Eaton 210508 replacement pinion nut, a hex locking nut that threads onto the pinion output shaft and holds the parts mounted there in place. Our parts manual lists it in the Dana Spicer DS/RS 461, 521, 581, 601 Tandem Drive Axle: item 53, Nut, Output Shaft, in the Forward-Rear Differential, and item 50, Nut, Locking, Pinion, in the Rear-Rear Differential. A nylon insert grips the shaft threads so the nut resists backing off under vibration and load, and its steel body takes a heavy wrench. Sold by Pro Gear and Transmission. Call us to confirm fit for your axle.
Interchanges:
- 22310
- EE22310
- Navistar 2000580C1
Features
Hex locking nut for the pinion output shaft
Nylon insert resists loosening under vibration and load
Dana Spicer DS/RS 461, 521, 581, 601 Tandem Drive Axle, Forward-Rear Differential, item 53, Nut, Output Shaft
Dana Spicer DS/RS 461, 521, 581, 601 Tandem Drive Axle, Rear-Rear Differential, item 50, Nut, Locking, Pinion
Used in this Dana Spicer model
