How to splice a H4 plug into your existing wiring harness

How to splice a H4 plug into your existing wiring harness

Bought a new headlight for your bike and it has the wrong plug? Maybe your female H4 plug has a different pinout. Pictured below is the pinout for all of our H4 plug headlights. Load up a fsm or copy of your bikes wiring diagram and locate your headlight high beam, low beam, and ground wires. If different than the pictured below, snip your old female H4 plug off and splice in a new one as follows. 

Note the orientation of the plug, flat side down. Pinout as follows from left to right. High beam, low beam, ground. Make sure to use quality crimp connections or solder joints when connecting new wires. 

Oct 25th 2023 steve rider

Recent Posts