Most Popular Optronics for 1979 BMW 3 Series

Replaced the wiring and lights on my 1992 boat trailer. I was able to get everything needed from etrailer. I think Optronics is of the highest quality and recommend both etrailer and Optronics product.

Works very well after re-wiring trailer lights with waterproof distribution box.

Just what I needed for my home-built bike carrier. My wife rides an e-tricycle and by the time I loaded the trike and a couple of bikes on this platform, you could not see the car's taillights or blinkers. This harness worked perfectly!

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Wiring worked perfect for my project. I replaced the wiring on my 14 foot utility trailer. If I was to do it again I would buy the next length up. I would have liked to have a little extra wiring if I was to ever need it.

So, I converted my brand new Loadrite trailer to LED'S and wanted to add up a reverse light. I purchased this 5 wires trailer light harness to do the trick. Very good quality and the color code stayed the same. Had no problem what so ever and was an easy swap. I soldered every wires and protect them with heat shrink tubing and that should last a very long time. Thank you.

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Very bad experience. Placed an order on 5-24-23 for an item that showed to be in stock on the website. Receive an email stating that is back ordered and due to ship 6-5-23, several emails later still no wiring harness. Finally 7-10-23 I receive an empty envelope, well not completely empty it has a letter from USPS stating that the enclosed was found loose in the mail. A box would have been more appropriate to ship this item, as I have been in shipping for two different companies for 38 years now. I am unable to upload pictures of the envelope, I will send them via email.