Description
A properly secured cylinder base is non-negotiable for engine reliability, especially on vintage Harley-Davidson XL models where vibration and heat cycles can loosen inferior fasteners. COLONY’s OEM-specification cylinder base nut sets ensure consistent clamping force, prevent gasket blow-out, and eliminate the need for mid-ride adjustments. Made in the U.S.A. with precision chrome plating, these fasteners deliver the durability your engine demands.
- Chrome-plated steel
- OEM-specification fit
- Individual bolt and nut
- Fits 1957-1984 XL models
- MPN 8106-16
- Made in the U.S.A.
- Corrosion-resistant finish






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