Harley Tail Light Wire Colors Archives -

How to Determine Harley Tail Light Wire Colors

August 21, 2025July 1, 2023 by Barry K. Richmond

The taillight is an important safety feature of your Harley Davidson motorcycles. It highlights the edges at the rear side of your motorcycle. Thus, drivers from your back can know that you are in front of them at a distance. Therefore, the taillight goes a lot to ensure your safe driving. However, when it starts …

2 responses to “How to Determine Harley Tail Light Wire Colors”

Roy Valdez

December 15, 2022

Have a 6 wire plug that had to be cut 2001 sportster to marry a 8 wire no plug bullit bar has 4 black 2 purple 2 blues the wires from the stock rear harness has 1blue 1 black 1 orange 1 purple 1 red 1 brown having difficulty matting the wires can you advise

Barry K. Richmond

December 15, 2022

It sounds like you are trying to connect a 6-wire plug to an 8-wire harness on a Sportster motorcycle. From the information you provided, it appears that the 6-wire plug has 4 black wires and 2 purple wires, while the 8-wire harness has 2 blue wires, 4 black wires, 1 orange wire, 1 purple wire, 1 red wire, and 1 brown wire.

To properly connect these wires, you will need to identify which wires on the 6-wire plug correspond to which wires on the 8-wire harness. This can be done by using a circuit tester or a multimeter to test the continuity of the wires and identify which ones are connected to the same circuits.

Once you have identified the matching wires, you can splice them together using wire connectors or soldering. Make sure to properly label the wires to avoid confusion, and double-check your connections before turning on the motorcycle to ensure that everything is working properly.

If you are unsure about how to properly connect the wires, it is always best to seek the assistance of a qualified motorcycle mechanic or electrician to avoid damaging your motorcycle or causing a safety hazard.

Reply