Most Popular Trailer End Connector for BMW X3

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.

This is the exact plug that I needed without having to change out to more recent 7 pole conventional plugs, even though for my application I am only using 3 wires. Wiring instructions came with. I don't have a trailer or camper now, but this will be the electrical feed to my fuel transfer tank. ETRAILER HAS IT ALL AND KNOWS THEIR STUFF!

Never fails, fair pricing, and detailed communication on shipping ETA.

7 pin connector separated from cable. I was expecting that "Molded Cable" meant that the connector was fused to the cable insulation but instead, the two separated almost immediately after I installed it. It still works fine as the wires are connected securely inside the connector but with the outer covering pulled out like this, I don't think it will last very long.

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Çable good but after putting new 7way plug on truck cable wire colors did not match etrailers picture

I used this harness to rewire a 10ft vintage RV. There was plenty of length to reach the rear lights. I used Scotch Locks to tap into the wiring for the side running lights. Very good product.

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Very happy with every aspect of my order. Received product and quality appears to be outstanding. I’m especially impressed at the instructions made available to install the wiring harness, written with the product and link for video. All bases covered and follow up to make sure all goes well. Am confident of their assistance should I need it.

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.

I've had this in use for over a year and they don't build them like they use to. I use this on a gooseneck trailer and the piece of plastic behind the spade connector for the clearance lights and brakes has melted, allowing the spade connector to lose contact with the plug on the pickup. So the lights would cut off in the middle of the night and would have to wiggle the connection till I could fix it. I have an older Hopkins plug and never had this problem. To fix the problem I ended up putting pieces of thin copper wire behind the spade and have done it twice since the plastic melted a 2nd time and once again the trailer clearance lights would quit working. Attached are before and after pictures.

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After a year doing its job well.

Sooo, bought another one to match my truck side connection as GM uses Pollak, which are known to not play well with other brands. The design is just a wire clamp to wire it, which I did with the first one, but trying to get it secured I stripped out the screw. There are no torque specs provided. I’ll move to crimped ring terminals on this one and dial back the torque a bit.

Used as a replacement for original connector that didn't have a positive fit. This one clicks in and provides confidence of a snug fit.

Nice product & good value imo--it's very beefy and appears to be heavy duty---I know these are supposed to be temporary---that said this one replaced a Reese connector connector exact same style w/LEDs that was almost 17 years old before it failed--hopefully this lasts even close to that amount of time--I don't use this trailer daily usually not even weekly---so maybe with commercial trailer use this connector isn't for you..... It's my considered opinion that many of the fails are the result of a lousy install or someone disconnecting by pulling on the harness INSTEAD of grabbing the connector either way this gets an A+ from me

This is perfect. I needed an easy way to change the connector on the trailer I'm working on. It was an old pop up camper with an 8 pin connector mounted on the frame. but I only needed a 4 after rewiring it. So, out with the old and in with the new! Plus it's really easy to connect all the wires. Picture is not of the new connector but of the whole project I'm working on. I've since mounted all the running lights, tail lights etc.

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They have just what I needed and it arrived very quickly.

I have used etrailer probably four or five times now and have been very happy. Shipping is fast, prices are reasonable and the products are of good quality. I purchased more of the Quick Fix 4 Pole Trailer Ends - they work really well for the non-automotive industrial control project I am working on.

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Your product met my expectation of excellent.

Great shopping experience with quick shipping

Great product no issues at all. Product as described & fit properly.

Pretty straight forward. I used it to switch my European trailer's connection to be able to connect to my Wrangler's 4-pin trailer hookup. No issues. works great.