NOS GM Rear Wheel Stud – Part #15589493
type: Unknown Type
Vendor: CorvairFarmer
Description:
GM part number 15589493 is a rear wheel stud used across multiple GM platforms, including Chevrolet and GMC trucks. It’s a hardened steel stud under Group 5.800
GM Rear Wheel Stud Specification Chart — Part #15589493
| Attribute | Value |
|---|---|
| GM Part Number | 15589493 |
| Description | Stud, Rear Wheel |
| Function | Secures rear wheel to hub via lug nut |
| Thread Size | M14 × 1.5 × 91 mm, 41 thread |
| Material | Hardened steel |
| Finish | Zinc-plated |
| Dimensions | 8.1" × 4.7" × 1.4" (packaged) |
| Weight | 1.80 lbs (packaged) |
| Position | Rear axle hub |
| Condition | NOS (New Old Stock) |
| Replaced By | GM #88891758 (U.S. market, post-2001) |
| Warranty | GM-backed factory warranty when sold new |
🚗 Confirmed Fitment Applications
This stud fits a wide range of GM vehicles, especially:
-
Chevrolet C/K Series Trucks
-
GMC Sierra and Suburban
-
GM vans and light-duty platforms (1980s–1990s)
Used in rear axle assemblies to secure wheels via lug nuts. Often included in service kits or sold in sets of 5 for hub rebuilds.

