# 1
Adapter 7 Pole to 4 Pole with Tester and Cover
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.
# 2
Adapter 4 Pole to 7 Pole Vehicle End Trailer Connector
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!
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.
# 3
Adapter 4-Pole to 5-Pole Trailer Wiring Adapter - Shorter
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.
# 4
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.
# 5
7-Way Molded Trailer Wire Connector, 4' Long
When I ordered this harness I thought I was getting a standard 7 way for a conventional trailer with brakes. What I actually got was a harness made for a camper/RV hook up. The wires have all the colors you would expect but all the lights/turn signals are coded into the plug completely different. After spending a good deal of time carefully matching, soldering and heat shrinking all connections to my new trailer harness, I was very dismayed to find only the brakes actually worked. After a bit of research I found a schematics page on the etrailer site and discovered the problem. As this is a molded plug I could not take it apart and just reposition the wires inside the plug. Another full hour or more of rewiring followed and now all is well. The harness itself is of very good quality but was not labeled/identified properly. This could have been prevented if etrailer would clearly label this harness as a camper/RV harness only.
This is definitely a good quality molded cord for the money. Route and wire this cord into a good quality junction box and you will be on your way to having some excellent trailer wiring.
# 6
Trailer End Connector - 4-Flat - Coiled
GREAT ACCURATE REPLACEMENT WIRING.
Timely shipment. I’ve bought from your company before and haven’t been disappointed. Nice job.
# 7
Quick Fix (TM) 4 Pole Flat Car and Trailer Ends
Quick easy repair
They have just what I needed and it arrived very quickly.
# 8
35 Ft 4-Way Trailer Wiring Harness - Wishbone Style - 42" Ground
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.
# 9
Pollak 6-Pole, Round Pin, Plastic Trailer Wiring Socket w/ Rubber Boot - Vehicle End
This part is an exact replacement to the part that failed. The failure was caused by a poor installation which allowed the rubber boot to chaff on the truck frame. As it was an exact replacement installation was straight forward although I modified the mounting bracket to prevent a reoccurrence of the problem.
I found what I thought I needed on the website to prepare our car to be flat towed, but wanted to call to verify. After a short phone call, eTrailer saved me about $50 and got me the stuff I actually needed to get the job done! I won’t shop anywhere else!
# 10
Tow Ready 4 Pole to 5 Pole Trailer Wiring Adapter
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.
# 11
Pollak Black Plastic, 7-Pole, RV-Style Trailer Connector - Trailer End
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.
Routine trailer maintenance. Absolutely nothing worse than fighting trailer lighting or electric brake issues when traveling.
# 12
Hopkins Endurance Multi-Tow Trailer Connector Adapter - 7-Way to 6-Way, 5-Way or 4-Way
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.
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!
# 13
Hopkins Heavy-Duty Trailer Coiled Wire Adapter for 7-Way to 4-Wire Flat
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.
# 14
Adapter 7-Pole to 6-Pole - Universal
We had been having trouble with our other adapters, no brakes or intermittent brakes. This adapter fits better than any of the others ever have, great connection and is holding tight. I will be picking up some more of these. The only downside to me was they came on the value shipping which is rather delayed for us and I would rather pay to get it here more quickly. I was needing it and it was several days getting here. We ship a lot and I know shipping directly with USPS goes faster than that and is not expensive.
Added the gooseneck trailer plug in bed and I wanted to be compatible with new and old style plugs. Adapor worked great.
# 15
Hopkins Trailer Connector Adapter - 7-Pole Round Pin to 7-Pole RV
Product won't work correctly. I've tried it with 2 different trucks and 3 different trailers. Each Turn signal will active the hazard lights, and no tail lights. When pressing brake lights, all side marker lights will light up.
Brake doesn't work locks them up
# 16
7-Way RV to 4-Way Flat Trailer Connector Adapter
Works fine. Reasonable price. I'm happy that etrailer is around.
Thanks for the follow up!
# 17
Wesbar 4-Pole Flat Connector w/ Jacketed Cable - Trailer End - 4' Long
Heavy duty plug that has a good snug fit and I like the jacketed cord that provides strength and extra protection.
I have been very pleased with etrailer orders recently. Everything shows up when expected and products are as expected. Attached are a couple before and after pictures of my recent project to add lights to a cargo rack per my wife's request. Thanks for the professionalism of all at trailer
# 18
Works great for my 12v refrigerator in back of truck!
I knew what I wanted to do- Be able to hook up my portable air pump to my truck cigarette lighter, but the cord of course wasn't long enough to reach to inflate my truck shock air bags. I couldn't find what I needed, but thankfully etrailer carries just the right adapter to accomplish the task from my trailer connection. Thankyou for the quick service at a decent price.
# 19
Adapter 7 Pole to 5 Pole Flat Wired Adapter
Nice adapter for my rv to motorcycle trailer. Easy to use and works great.
Well made. Great extension from truck to my boat. Adds an additional 20" of wiring
# 20
20 Ft 4-Way Trailer Wiring Harness - Wishbone Style - 30" Ground
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.
Your sales staff is second to none. Keep up the good work. You shipped minutes after I placed my order! Very impressed! Marty
What our customers are saying:
"Thanks! Job well done Signed Delighted customer!"