Vintage Motorcycle Wiring Harnesses – OEM & Aftermarket Replacement Harnesses

Find OEM and aftermarket vintage motorcycle wiring harnesses for classic Honda, Yamaha, Suzuki, and Kawasaki motorcycles. This collection includes direct-fit wiring harness replacements designed for motorcycles from the 1960s through the 1990s.

Over time, original wiring harnesses can suffer from corrosion, brittle insulation, cracked connectors, and electrical shorts. A replacement motorcycle wiring harness restores proper electrical flow, improves reliability, and eliminates intermittent electrical issues that affect starting, charging, lighting, and ignition systems.

Our inventory includes complete main wiring harnesses, sub-harness assemblies, and model-specific electrical loom replacements — all selected for accurate fitment and dependable performance across stock and restored vintage motorcycles.

Old Bike Barn specializes in vintage Japanese motorcycle parts with trusted OEM and aftermarket electrical components curated by experienced riders who wrench.