Ford F100 Wiring Harness | eBay Fits 1953-56 Ford F100. Classic Wiring Harness Complete Update. Standard turn signal flasher, hazard flasher, and horn relay mounted on harness. A heavy gauge alternator feed and fusible link are also.. American Auto Wire 1961-1966 Ford F-100 Truck Wiring Harness # 510260 (Fits: Ford F-100) $575. Buy It Now. or Best Offer. Amazon: ford f100 wiring harness Amazon: ford f100 wiring harness. Skip to main content. Nilight NI -WA 07 16AWG Leads LED Light Bar Wiring Harness Kit 12V On/Off 5 Pin Rocker Switch Power Relay Blade Fuse for Jeep Boat Trucks, 2 Years Warranty. 4.3 out of 5 stars 177. $12 $ 12. 11. Get it as soon as Tue, Apr 9.