Hemi Standalone Harness – Swap Specialties Covering all Gen3 HEMI’s (5.7, 6.1, 6) our plug and play harness comes dyno tested and with a 3 wire hook-up your running! Weatherproof Fuse and relay box holds fan and fuel pump relays with outputs all ready for you to connect. We can also customize the harness to any fit whatever you need. 6.1 hemi wiring harness | eBay Find great deals on eBay for 6.1 hemi wiring harness. Shop with confidence. Skip to main content. eBay Logo: 2 product ratings - 05-10 Chrysler Dodge Jeep New Engine Wiring Cover 6 Hemi Right Side Mopar Oem. $48. Trending at $99 Trending price is based on prices over last 90 days. Buy It Now +$9 shipping. 9 Watching.