Kuryakyn Trailer Wiring and Relay Harnesses for '14-18 Touring Models with 4 Wire Trailers 
Safely and effectively apply the load from your trailer lighting through this plug and play harness.
Removes the possibility of overloading stock lighting or accessory circuits with the built in relay.
The harness taps into the motorcycle's direct power from the battery to power the trailer lighting circuit.
Standard 4 wire output (run, left turn/brake, right turn/brake, ground) plus a bonus wire that can be connected as needed to provide fused 12v power to the trailer for compartment lights or keyless entry systems that are wired independently of the trailer's essential lighting.
All Plus 1 kits include a bonus wire that can be connected as needed to provide fused 12V power to the trailer for compartment lights, keyless entry systems or other systems that are wired independently of the trailer's essential lighting.
4 Wire Kits include a flat 4 connector.
Fits Models with 4-Wire Trailers: '14-'18 Electra Glides, Road Glides, Street Glides & Road King Special
NOTE [Standard FLHR/Police models use sku# 2598]
Not for Screamin' Eagle models