This Wilwood W5 self‑locking spindle nut assembly in black is a replacement spindle nut intended to secure the wheel spindle with a self‑locking action. Supplied as a single assembly, it serves as a direct hardware replacement during wheel bearing or spindle service. The self‑locking feature helps maintain retention under operating conditions, making it suitable for reassembly when original nuts are worn or damaged.
Wilwood Spindle Nut W5 Self Locking Assembly - Black