A missing cotter on a Z32 rear steer joint is how a castle nut backs off. The Genuine Nissan Rear Steering Ball Joint Mounting Cotter Pin (part number locks that nut on the Fairlady Z and 300ZX rear steering ball-joint mount.
This split pin is a one-time fastener. Fit a new one whenever the rear steering ball joint, knuckle, or HICAS-side hardware comes apart. It replaces earlier numbers 00921-21810 and 00921-21800. It applies to USDM 1990–1996 300ZX and JDM Fairlady Z Z32 cars, NA or twin-turbo, that use this pin at the rear steering joint.
Never reuse a bent or cut pin. At Terra Firma Automotive, we supply this genuine Nissan Z32 rear steering cotter pin so Fairlady and 300ZX owners can secure the ball-joint nut with the factory split pin. Choose Terra Firma Automotive for authentic Nissan chassis hardware built for the Z32.
- Genuine Nissan cotter pin
- Description: pin-cotter / split pin
- Replaces: 00921-21810, 00921-21800
- Application: Fairlady Z / 300ZX Z32
- Location: rear steering ball joint mounting
- USDM 300ZX 1990–1996
- JDM Fairlady Z
- NA and twin-turbo
- Sold individually
- Replace whenever the joint is opened
- Direct OEM replacement
- Available from Terra Firma Automotive
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