MCS Wiring Extension Kits

16 products — part of all Wiring Extension Kits

MCS wiring extension kits for Harley-Davidson handle the electrical side of handlebar modifications cleanly and legally — the harnesses that bridge the gap when taller bars, relocated controls, or a custom cockpit layout requires more cable run than the OEM looms provide. The kits are plug-and-play for 1996-2006 and 2007-2010 Harley-Davidson models, covering cruise-control and non-cruise variants separately so you're extending the correct circuits rather than splicing into a loom and hoping for the best. The MCS approach is model-specific rather than generic: measured extensions working with OEM connectors rather than aftermarket adaptors that introduce resistance and potential failure points. Iron City Motorcycles stocks MCS extension kits because handlebar modifications on a modern Harley-Davidson need a proper electrical solution, not a collection of butt connectors and tape. Browse the full MCS Wiring Extension Kits range below.