Speedway Universal 22 Circuit Wiring Harness Sep 12, 2016This universal wiring harness is an updated version of our best-selling 20 circuit harness, with the addition of 2 extra fused circuits. Each high temperature wire is color coded and labeled every six inches.Ratings: 245Price: 189Brand: Speedway MotorsFounded: Jan 01, 1952 21 circuit universal wiring harness | eBay www›Search›21 circuit universal wiring harnessFind great deals on eBay for 21 circuit universal wiring harness. Shop with confidence. Skip to main content. eBay Logo: Shop by category. 21 Circuit Universal Wire Harness 21 Fuse 12v Street Hot Rat Muscle Rod Wiring. Brand New. $499. Buy It Now.