Most Popular 4 Flat for 2019 Subaru Impreza

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.

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!

Click to Enlarge

Click to Enlarge

Click to Enlarge

Click to Enlarge

Click to Enlarge

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.

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.

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.

Click to Enlarge

Trailer wiring got here just today so I can't really review this one. However, I have purchased the same unit before and it's really great. Just make sure you ground it properly and make good connections and it will work fine. Thanks again for a great product and rapid service. Robert

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!

Click to Enlarge

Works really well.

This product wooks great. I will do business with this company again

I rewired my light bar for my boat trailer with the items I purchased. Before I built the the light bar, every time I used my boat trailer I would waste valuable sailing or fishing time repairing faulty lights. The do not last long when you submerge them in salt water. This light bar now version 3.0 have given little trouble over the years

Click to Enlarge

Click to Enlarge

Great product. Works well when I had a broken connection on my 4 way plug end on my light-up hitch cover I bought from y'all a while back. Always a happy customer. Thanks, George.

Click to Enlarge

Great build quality, but unfortunately it will not work to legally use a 4-pin trailer being towed by a 7-pin Euro/Land Rover plug. Its simply mapping 4 of the 7 pins to the following pins on the 4-pin side. Left running, Right running, Stop and negative, there is no provision for indicators or dual sided brake lights. It needs diodes (which it does not have) to do this. etrailer just needs to update the description as this is a good basis to make various adapters.

Received product in good order, well packaged, initial some delay, manufacturer was chased by etrailer, and earlier dispatched by manufacturer; delivery trail clear stated, very good. On receiving verified at UHAUL: connect with 1983 Land Rover (Defender) 110 Stationwagon (photo: rear, while on transport): all functioned ok. Apparently some diode(s) included, as the 7 pin has individual stop light which translates as left AND right indicator on flat pin. Emergency flashing (all indicators left and right) tested ok at UHAUL (connecting to trailer). LR has European homologated 3.5 metric Ton (7700 lbs) tow hook and has done some 60,000+ miles towing with current odometer reading 578,000+ km (on/about 360k miles)

Click to Enlarge

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.

I rewired my boat trailer using the wesbar 4-flat connector from junction box to the hitch. I do wish the wesbar connector was available in tinned wire. I used tinned 14 ga tinned wire for the rest of the wire and ran a ground wire to every light eliminating the trailer frame as a ground. Also added a switch at junction box for a manual trailer reverse flood lights. Filled the junction box with removable potting Gel to prevent water/corrosion. Works great. No issues. Never been stuck on the side of the road troubleshooting an electrical issue / bad ground. Would purchase this again, unless I could find a marine/tinned wire version, then I would purchase that one instead.

Click to Enlarge

Click to Enlarge

Click to Enlarge

Click to Enlarge

Click to Enlarge

We installed this cord on a tilt bed trailer that we use to transport scissor lifts. We have multiple trucks that pull this trailer and the receptacle on these trucks are in different locations. This required using a 4 flat extension on many of them and as you would expect, the extensions come up missing and of course no one knows what happened to them. We tried every trailer supply store in the Phoenix area and no one carries a cord like this. Because this one is 14' long, we can cut off what we don't need and wire it into the J-box on the trailer and make it long enough that we don't need an extension. Great product.

Works, exact fit, high quality, coils tight so max of about 3.5’ perfect! Heavy duty wiring, great waterproof connections.

Item was just as I anticipated. It looks good, works great, and the delivery was as promised. E Trailer is a good place to do business.

Click to Enlarge

This is the perfect solution for the Harley Davidson 5 wire harness, easily lets you convert to 4 pin and stores away when you don't need it.

The product did not work and I have to order another that will work.

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

Click to Enlarge

Click to Enlarge

fits the plug perfect....just got a goldwing used, haven't had a chance to ensure it (the bike) was wired correctly for a trailer. no fault of the product, just wish its wireing was a bit long due to the way the plug was intigrated into the underside of the tour trunk.

Click to Enlarge

Works great! Took a few minutes to figure out the rv side and get it set up so the round RV part Correlated in the correct way to the standard four flat wiring. But it went smoothly.

The wiring converter worked exactly as designed and was simple to install.

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.

I have ordered several adapters and complete trailer wiring harnesses from Etrailer. All have been top quality. I have saved a lot of money on the plug and play trailer harnesses. Several hundred dollars when they are factory installed, less than $75 from Etrailer.

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.

Wiring and new self adjusting electric brakes were a simple install and work perfectly. The etrailer online video and written instructions made the job easy.

I needed a plug so I could pull my boat behind my camper. It was just the right length.