Colony 8874-2 Seat Post Rod Lock Nut & Washer | Replaces OEM 51674-25

Secure your vintage Harley’s seat post with the Colony 8874-2 Cadmium Seat Post Rod Lock Nut & Lock Washer Kit, a high-quality replacement for Harley-Davidson OEM 51674-25. Designed for strength, reliability, and proper factory fit, this kit ensures your seat post stays firmly locked in place—critical for stability and rider safety on classic machines.

Featuring durable cadmium-plated hardware, this set delivers excellent corrosion resistance and long-term performance, making it ideal for restorations or replacing worn original components. Perfect for builders, restorers, and riders who want authentic hardware that matches OEM specifications.

Why Riders Choose This Kit

• ✔ Direct replacement for Harley OEM 51674-25

• ✔ Cadmium-plated for superior corrosion protection

• ✔ Ensures secure seat post retention

• ✔ OEM-correct fit and finish for vintage models

• ✔ Ideal for restoration and maintenance on classic Harley-Davidsons

• ✔ Made in the USA with trusted Colony quality

What’s Included

• 1 × Cadmium Lock Nut

• 1 × Cadmium Lock Washer

Perfect For

Vintage Harley owners restoring or repairing seat post assemblies and requiring exact, USA-made replacement hardware.