Most Popular 4 Flat for 2021 Subaru Legacy

I have ordered from Etrailer several times over the years. Always have exactly what I need. Good prices and fast shipping. Could not be happier. This wiring harness was perfect. Installed it in a few minutes. Thanks.

Excellent. The only down side for my Lexus RX300 was not having an “easy” way to mount male 4-way next to hitch rather than stowing it beside tire bay. No big deal just a plus.

Very heavy duty industrial-grade trailer lighting cable. Cable is a little thicker/stiffer and also heavier weight than expected, but will work well with a vehicle-mounted 4-pin lighting connector.

GREAT ACCURATE REPLACEMENT WIRING.

My '92 GMC Sierra had a 6-pin trailer harness connector and I'm going to be pulling a pop-up camper in a few weeks that has a 7-pin connector. I originally ordered a 47435 6-Pole to 7-Pole Trailer Wiring Adapter. After thinking about it for a day I changed my mind and ordered a HM48470 Hopkins Endurance Multi-tow 7-way, 5 & 4-wire Flat Connector to mount in the bumper and a HM47570 Hopkins Endurance Multi-tow Connect Adapter - 7-way To 6-way, 5-way and 4-way. The HM48470 will allow me to pull the pop-up as well as giving me the 4-wire flat connector that I need for my boat trailer. I bought the HM47570 adapter just to cover all the trailer wiring needs I might run into. I really like the fact that the 47570 adapter has the quick change plug to cover both wiring arrangements for 6-pin trailer connectors. I placed the original order Saturday evening and the second order Sunday afternoon. Monday morning, I called etrailer.com to try to cancel the first order and was told that both orders were already boxed and on the way the shipper. I had no idea that they had people there to pull and box orders on the weekend. I asked about returning the first order when it arrived and was told by Helen M that it would be no problem at all. I have been extremely pleased with my purchase experience with etrailer.com. Everyone I spoke with there was very knowledgeable and I will not hesitate to go directly to them for my trailer and towing needs in the future.

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I needed an adapter for my electrical towing harness so the that I could use a 5-Way connector on my 7-WAY plug. On line, I found and ordered Item No. HM47570 "HOPKINS ENDURANCE MULTI-TOW CONNECTOR ADAPTER - 7-WAY to 6-WAY, 5-WAY or 4-WAY." When I received the product, I was really stoked, it was exactly what I needed and what I had been looking for! I tried it on for "size" as you might say and it's going to work like a charm. I will send some photos later when I'm done with the installation! No time right now. . this coming weekend! Photo 1&2 my connector; Photo 3&4 the new HM47570; Photo 5,6,&8 the light bar I wanted to install and the completed project. Thanks a bunch!

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Not too difficult to install, but I would recommend using a car lift so you don't have to work from your back (review includes wiring harness and Brake Controller)

Perfect . My new Subaru hitch has a flat plate to which the dealership attaché the 4-flat. I used “2 L-brackets” to accommodate the 90 degree bend of the adapter bracket.

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Really nice trailer wiring adapter. Very easy install. Takes about 30 minutes with all the tools needed. Drill, 7/64 bit for pilot holes to mount the bracket, flat blade screwdriver and 11/32 nut driver and two #10 self tapping metal screws with locking split washers and a couple zip ties to tidy up the wiring harness.

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I looked at so many options before deciding on the B&W hitch, but I have no regrets buying it. There is nothing that my car is suitable for towing that this thing can’t accommodate. I even use it on the front hitch of my mower to move trailers around the yard! Adjusts very easily and stows nicely (though on my Ford Edge it rides lower than I like when stowed).

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.

ETrailer had exactly what I wanted at a fair price. Website was easy to navigate and purchasing was simple. Shipping was fast and I was kept notified right up to when I received my order.

Plugs in easily, shows that pins are producing voltage, and locks in place using the spring loaded door to the 7-pin.

Good solid unit that I expect to last a lifetime. I purchased this unit primarily to provide a charging port for a float charger. The idea being that if I forget about it or if someone else drives my truck and is unaware that it is connected, it will easily disconnect when the vehicle is driven away.

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Perfect! I use the 4 flat for my boat trailer lights and the +12v I've wired to charge the boat battery as I drive to and from where ever I'm fishing; brilliant!

I wanted one with a LED tester built into it to "trick" my SUV into thinking I had a trailer connected when really it was just a bike rack so the car didn't slam in it's brakes while reversing thinking it was something else. So I bought a different adapter. The picture slightly deceived me into thinking this had LED tester because the plug is attached by a rubber string (that I thought was a wire). So add another picture of the other side and that would eliminate my confusion. 4 stars because it probably works the way 99% of people would want to use it for.

Everything worked out well. On time and fits perfect. Attach hitch setup and my new Ridgeline. It comes with a 2" inch receiver and I have a full compliment of 1.25. stuff from my previous car. All from etrailer i must admit! so I needed the 2-1.25 reducer, a good lock, and the 7-4 reducer for my goodies! Thanks for the grest service

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I used the Hopkins 3 to 2 converter to make a 6-pin round to 4-flat connector for my Winnebago View motorhome. While there are 6-4 plugs available to do this, they do not work on the Winnebago View (no brake lights). This adaptor works great.

This device was no help in connecting my five wire trailer to my four wire goldwing. I ended up having to use a number of diodes in the trailer wiring to make everything work properly. My trailer had red LEDs that were used for Brake, Turn & stop and I had to get the brake and turn function to share the same lead on the light fixture.

Very solid, heavy duty trailer lighting cable

Really quality piece. Plenty of length to connect back to the rest of my utility trailer wiring that was still in good shape since it was in an area subject to far less abuse. Nothing worse than having to fix the corroded wires in between replacing the worn out plug every few years. This should give me years maintenance free service even with the toll winter takes.

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.

The website was the first indicator this would be easy. Logically laid out, suggestions for complimentary hardware, good photos and demo video's to make selection easy. The ordering was easy, I received timely updates, who actually worked on my order and again, timely updates. Order arrived quickly and is exactly what I needed. No drama, just received my order promptly. What more could I ask for?

E-trailer: they've got what I need at a reasonable price. This is what e-commerce should be!

Simple and easy to use; just plug it in and connect it to the trailer harness. Works like a charm!

Not installed yet but looks as good as one used before in a former vehicle. The actual adapter I received is "Reese", which is a reputable brand for towing accessories.

I have now installed the following on my 2017 Wrangler: Brake light relay kit . Hopkins Towed vehicle Tail Light wiring kit. Blue Ox base plate. Blue Ox Patriot Portable RF Braking System. All of this has taken about 3 days of work spread out over a week or so. Overall it went well. Not too many surprises. Crawling around under a car at 71 is a bit of a strain but I'll get over it. I must say that Donna P. has been a wonderful source of great information and has stayed right on top of the process. eTrailer has been a great source for this project. I would recommend you all with no hesitation.

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The items I ordered will allow me to adapt my utility trailer for transporting my sea kayaks. Curt and Hopkins are both quality manufacturers. On a shipping note, the box arrived at the Post Office broken wide open. Your shipping folks need to wrap small, heavy, items in bubble wrap. Then stabilize it with foam peanuts. Just putting it in a box then stuffing the box with craft paper does not cut it. Items were not damaged so I am good to go.

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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Arrived quickly. I didn’t need to wire the extra lead to my reverse lights because my trailer doesn’t have surge brakes or backup lights. Simply plug and play.

Perfect for converting 4 wire Ford Expedition trailer harness and boat trailer to 5 wire. The Expedition had a backup wire run to the area of the 4 wire plug so made the conversion easy.

I never used it. It does not fit my motorhome. Still sitting in my garage.

Perfect fit with easy installation instructions!

This product works as expected. There is not too much to the installation, just plug it in properly and mount the ground wire. I did not find an easy way to mount this to my wife's Odyssey, or to the trailer hitch (item# 75270). Luckily, I do prototype design and manufacturing. So I came up with my own solution. I designed and made my own bracket to mount the 7 pole to the trailer hitch. It works like a charm, and looks great!

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i had to replace these two items as my dear daughter went down our goat path driveway too fast. they replaced the originals from etrailer from the prior year. shipping is timely and customer service actually helps! i wired from battery to controller to hitch myself, and everything fit.