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Pollak Trailer Connector Adapter - Vehicle End - 7-Pole Round to 7-Way Blade

Pollak Trailer Connector Adapter - Vehicle End - 7-Pole Round to 7-Way Blade

Item # PK12-724
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Pollak Plug and Lead Wiring - PK12-724
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This adapter plugs into your vehicle's 7-way, round-pin receptacle to adapt it for use with a trailer-end, 7-way, RV-style plug. The 7-way flat receptacle includes a hinged cover to keep dirt and moisture out of the connection. Lowest Prices for the best wiring from Pollak. Pollak Trailer Connector Adapter - Vehicle End - 7-Pole Round to 7-Way Blade part number PK12-724 can be ordered online at etrailer.com or call 800-298-1624 for expert service.
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Pollak Wiring - PK12-724

  • Wiring Adapters
  • Single-Function Adapter
  • 7 Blade
  • Plug and Lead
  • Pollak
  • 7 Round

This adapter plugs into your vehicle's 7-way, round-pin receptacle to adapt it for use with a trailer-end, 7-way, RV-style plug. The 7-way flat receptacle includes a hinged cover to keep dirt and moisture out of the connection.


Features:

  • Adapter converts your 7-way, round-pin vehicle-end connector for use with a 7-way, RV-style trailer-end connector
    • Lets you tow a trailer with a 7-way blade plug
    • Works with any RV-style, 7-way plug
    • Connects ground, left turn, right turn and stop circuits
  • Round, floating, solid brass pins in plug
    • Ensure minimum voltage drop
    • Align easily for maximum contact
  • Spring-loaded, hinged door on socket to protect the interior from dirt and moisture
  • Collar with 4 mounting holes lets you mount the socket to your bumper
  • Plug is constructed of glass-filled nylon
  • Socket is constructed of high-impact, ABS thermoplastic


Specs:

  • Overall length: 14-1/2"
  • Length between plug and socket: 7-1/2"
  • Wire configuration:
    • White: ground return
    • Black: clearance, side marker and identification lights
    • Yellow: left turn signal and hazard signal
    • Red: stop lights and anti-lock devices
    • Green: right turn signal and hazard lights
    • Brown: tail light, rear clearance marker and license plate light
    • Blue: auxiliary circuit/ABS power
  • Wire gauge:
    • White: 8
    • Red, blue: 10
    • Black, yellow, green, brown: 12
  • 1-Year limited warranty


Note: If your 7-round plug is wired separately (brake light and turn signals on different wires), this adapter won't work.



12-724EP Pollak Trailer Connector Adapter - Vehicle End - 7-Pole Round to 7-Way Blade






Customer Reviews

Pollak Trailer Connector Adapter - Vehicle End - 7-Pole Round to 7-Way Blade - PK12-724

Average Customer Rating:  4.8 out of 5 stars   (123 Customer Reviews)

This adapter plugs into your vehicle's 7-way, round-pin receptacle to adapt it for use with a trailer-end, 7-way, RV-style plug. The 7-way flat receptacle includes a hinged cover to keep dirt and moisture out of the connection.

- PK12-724
by:

My trailer connector works great. Because I live a ways from town it was great to order it online and have it shipped. It arrived quickly. One note: When I was in town I did see the same connector at NAPA for the same price. All things considered, I'm happy with my purchase and would order from etrailer again.



- PK12-724
by:

I received this item in a plastic bag, for a few moments i wondered if it was a knock-off. I had done my home work and was sure that this item would be compatible with the socket on my John Deere 2013 5085M at the time I ordered it, not so. The 'holding ridge' at the plug-in end was not in the right position when fully inserted into the plug on the tractor. I sent multiple pictures to Pollack Technical Support but they were unable to assist me. I finally modified the item myself (something I really hate to do) so that it would fit the plug-in and be 'grasped' by the cover/holder on the tractor side. As I anticipated, the thickness of the plastic was inadequate to make the adaptation 'sweet', so I had to cover the resulting hole with silicone caulk.



- PK12-724
by:

It’s a great product but not for my intended reason. It just adapts round pin to flat pin. I was looking for an adapter from commercial truck to RV trailer. Additional wiring is required to convert commercial to RV, gooseneck, etc.



- PK12-724
by:

seemed to be a good product , the only problem was going from 7 pin round semi connector to 7 pin rv style the trailer brake circuit did not line up , some rewiring was required so it would work with the brake controller ( if i would have i checked your website i would have known it sooner , no problem figured it out ) used truck and trailer alot since , no problems so far



- PK12-724
by:

This is a great solution for adapting RV blade connector to 6 pole connector. I give it 5 stars. I use this for work purposes, and have found one issue that I DON'T believe to be manufacturer defect. In my industry we use different trucks and trailers daily, if not hourly. Some trailer electric brakes will lock up when adapter is connected. I have found the red wire in the adapter to be the problem. My solution was to splice in a switch so that when the intermittent problem arises I can flip the switch and be on my way.


Comments
Thanks for the information Charles, I did want to let you know that there are two differnet wiring configurations for these 6-way connectors. Sometimes the red wire that you noted as the brake connector point can also be pinned as the 12V power wire. This would then activate the brakes, as you noticed. Your solution while it worked for your application is not something that we generally recommend for our customer in case they forget to flip the switch and are then towing without brakes on their trailer. For that instance we recommend repinning the connector and changing the 12V and Brake pins to correspond to the correct functions.
-- Etrailer Expert Rachael H - 06/23/2018


- PK12-724
by:

Got it just when it said it would be here. The 7 into 7 plug that was ordered is already on the truck an trailer. Thanks Guys.



- PK12-724
by:

Exactly what I needed



- PK12-724
by:

This is a well made item and it worked perfectly on my 1933 ford truck !



- PK12-724
by:

We are so glad we found etrailer.com! We have never ordered an incorrect part because their info - and large bank of Q&As - has always told us everything we needed to know. I wanted to share our experience with the Pollack 7-way blade to 7-way round connector, part PK12-724. When researching for the correct part, we found a question from a buyer who had the same/similar vehicle, a 1993 Ford F-150 with a factory tow package. He was told to buy the PK12-724 but to cut the red and blue wires and cross-connect them. (This was info we we so glad to have!) We did so, and most everything worked except the trailer back-up lights came on whenever the lights were turned on. We mentioned it at the RV place when we were there, and they checked it for us. Turns out that not only did we have that issue, but our trailer battery was not charging when hooked up and truck running. So on the blade end of the connector, they moved some of the wires around (see included illustration), and voila, everything now works correctly! I hope this is helpful to others. I believe the truck information is the most important info for this fix, but FYI our Trailer is a 1994 Komfort 27.



- PK12-724
by:

just what i needed i've ordered a lot from etrailer and have never been disappointed with the service and knowledge of the people you deal with



- PK12-724
by:

i could not find this product anywhere else so i thank etrailer for there service and prices



- PK12-724
by:

Very pleased with the connector and the price. The only reason I did not give five stars is that I had to wait a month to receive it



- PK12-724
by:

As always e-trailer Has the best selection and even nearly impossible to find products and parts at great prices With super service And fast affordable shipping.



- PK12-724
by:

Have a '79 Dodge with the older style 7 round pin Pollack connector and bought a new camp trailer with the 7 pin spade connector...needed an adaptor. Their PK12-724 was the perfect fit! Well built, and works perfectly! Etrailer.com has fast order processing too. Very satisfied with the product, price & service!



- PK12-724
by:



- PK12-724
by:

Connector was incorrect the ends are reversed. however the order numbers were provided by my local John Deere dealer and I followed their instructions when ordering



- PK12-724
by:

The adapter harness eliminated time & grief to replace/re-wire the commercial style plug on a farm tractor, allowing use of tail, turn, and brake lights on trailers with blade type connector. Works great.



- PK12-724
by:

Rather a difficult set up to find. Tried calling several other vendors, and most weren't able to fully comprehend what it was I needed. Called etrailer and not only were they able to know what I was talking about, they had it in stock and I had it in my hands within two days. Personnel are always superior in every aspect of customer service and basic human interactions. Which has become far less of a normal occurrence in this world. I will continue to use etrailer and spread the word on their great performance and excellent product lines.



- PK12-724
by:

I believe this is a lot easier and cheaper than making my own . we may need to buy more of these I will let our drivers test out the three I just received but I see no issues other than length but really don't think it will be an issue



- PK12-724
by:

The 14 inch extension 7 prong pigtail arrived very quickly as described. This is going to work perfect as I need the power cord from the trailer to the truck to be less than a foot longer to make the connection. Thanks for the really quick delivery on the perfect fix!! It appears to be very well built. Marco



- PK12-724
by:

Exactly what I needed to hook a conventional trailer to our new bucket truck without cutting the wiring up to get rid of the rare 7 pin socket.



- PK12-724
by:

Fits perfectly, looks great.


Comments
Works perfectly, easy connection.
Kim - 04/04/2020



- PK12-724
by:

Fast shipping. Product was what we nee ded.



- PK12-724
by:

PK12-724 Arived the next day exactly when I needed it. Plugged in and worked perfectly. I was able to safely pull my seeed tender behind my grain truck. The adapter is very secure with the door catch feature so no worries about it becoming unhooked.



- PK12-724
by:

Fit like it should but I have to run wires down to see how previous owner wired it as they hooked into factory plug and ran another horse trailer like plug on bumper.


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Ask the Experts about this Pollak Wiring

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    Thanks for the picture of the trailer wiring connector you have. Based on that you are in need of a 7-way blade extension like the part # C56080 for a 7 foot long extension or part # HM20049 for an 8 foot long extension. Or if you are looking for something shorter you'd want the part # TLW6024 which is 24 inches long.
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  • Powering Signal Lights on Trailer Towed By Semi Truck with 7-Way Round Connetor
    The 7-Way round on your Peterbilt Semi features separate circuits for its brake and turn signal lights, while your gooseneck trailer will have the brake and turn signals combined. This is why the brake lights and turn signals aren't behaving when connected using the 7-Round to 7-Blade Adapter # PK12-724 that you referenced. To resolve this all you need to do is add a the Roadmaster Converter # RM-732 to your existing setup before the adapter. This will combine the separate circuits...
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    There is a difference between a 7-way round and and 7-way rv blade connector. If you take a look at the accompanying photo, which is from our linked article on trailer wiring you can see that the connector on the left has blade-style pins while the one on the right has round pins. There is even an adapter, the Pollak Trailer Connector Adapter # PK12-724, which is a 7-pole round to 7-way blade if you need to go from the uncommon 7-way round to more common 7-blade. I have linked each...
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