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Demco Trailer Connector Adapter - 4-Way - 7' Cord

Demco Trailer Connector Adapter - 4-Way - 7' Cord

Item # DM9523004
Our Price: $100.40
You Save: $24.59
Flat Tow Wiring Harness
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  • Reviews (1)
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Demco Flat Tow Wiring Harness - DM9523004

  • Adapters
  • Extension Cord
  • Plugs into Vehicle Wiring
  • Demco
  • Universal

  • Adapter runs power from the motorhome to the towed vehicle using 4-way connectors
  • Coiled cord stretches up to 7' long
    • Prevents wires from dragging on the ground
  • Designed to withstand the elements
    • Vinyl-coated wire
    • Silicone-injected plugs
  • Cord contracts for storage
  • Cable, 2 male connectors, and 2 female connectors included
  • Extended length (approximate): 7'
  • 1-Year warranty

9523004 Demco RV Coiled Lighting Cable - 4-Way - 7' Long

Video of Demco Trailer Connector Adapter - 4-Way - 7' Cord

Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.

Video Transcript for Review of Demco - Tow Bar Wiring - DM9523004

Today we're going to take a quick look at the DEMPCO trailer connector adapter. This is going to be a four way cord that's going to be seven feet long and this is going to provide that electrical connection between our towed vehicle and our towing vehicle. It's going to mirror all the functions from our towed towing vehicle into our towed vehicle.If you're hauling a, let's say a vehicle behind your RV, this is going to give you that connection so you can get all of those wires, connect it up, have all your lighting functions, and that way everybody can know what's going on out in the road and you can stay compliant with any local and federal laws.Basically it'll mirror our running light function, taillight function, turn signal function, and we'll also have our ground connection. We'll get the cord and the two plugs, one to go on your RV and your car or maybe on your truck and your popup camper, however you're going to utilize this.We'll have our four male ends on the inside of each plug to match up with the female end of our cord on either side. Now this doesn't come with any hardware since it'll pretty much depend on what you're mounting this to to determine what you'll need. If that's a self tapping screw, nut and a bolt, pretty much depends on how you want to mount this up.

As far as our dimensions on the plug overall, it'll be about two and a quarter inches wide. The distance between the mounting holes is about one and three quarter inches apartFrom top to bottom it's about two and an eighth inches tall and it's going to sit back overall about two inches.There's a little rubber boot on the backside of this to help keep out any water and debris, but I would suggest back filling this once you have all your electrical connections made with maybe some dielectric grease to seal up that inside and it wouldn't be a bad idea to put some on those terminals and on the end of your plug.If you don't already have dielectric grease, you can pick some up here at It's just a substance that keeps out any water, or dirt and debris, helps to improve the longevity of your plug and your wiring.The plugs themselves are going to have a silicone injected plug on the back, so that's going to be pretty well sealed up as far as our cables, and then our wire is going to be vinyl coated. This does stretch out to that seven foot. The nice thing about the coil design is that that prevents it from dragging on the ground since whenever it's retracted, just coils up nice and neat, but then it can still stretch as we turn and move on the highway.Overall, this is going to be a really easy kit to put in place.

You will have to connect it into all those wiring functions on your towing vehicle and your towed vehicle, so that'll be your running lights, brake lights, turn signals and ground.Again, you will have to provide the hardware on your own to get that installed. That's going to do it for our look at the DEMPCO trailer connector adapter four way seven foot cord.

Customer Reviews

Demco Trailer Connector Adapter - 4-Way - 7' Cord - DM9523004

Average Customer Rating:  5.0 out of 5 stars   (1 Customer Reviews)


Works exactly as intended


See what our Experts say about this Demco Flat Tow Wiring Harness

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    Safe and legal flat towing requires a few items including a tow bar, safety cables, a wiring/lighting kit of some kind, a high/low hitch adapter, wiring extension and on the toad a set of base plates and a supplementary braking system. Each of these is detailed in the linked article on flat towing. Starting with base plates for the Wrangler, so long as you have a standard bumper with no winch or guards I suggest the Demco kit # DM9519292 (shown in the linked video) along with their Commander...
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  • Tow Bar, Base Plates, Wiring and Braking System to Flat Tow 2012 Ford F150 4x4 Without EcoBoost
    To flat tow your vehicle, you will need a tow bar, base plates that install on the vehicle and provide a connection point, safety cables, a wiring solution and a supplemental braking system. The Demco Excali-Bar III, part # DM9511013 would be a great choice. The independent and self-aligning design make hitching the vehicle very easy, even on on terrain that is not pool-table flat. The 10,500 pound capacity of the Excali-Bar will handle the weight of your F-150 with no problem. Safety...
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  • Does the Demco Tabless Base Plate Kit Fit the 2013 Honda Fit
    Yes, the Demco kit # DM9519236 does fit on your 2013 Honda Fit. The Demco Commander Tow Bar # DM9511012 is compatible with the base plates. In addition to the tow bar, you will need lighting, and supplemental braking. For lighting, you can use the bulb and socket kit, # RM-152-LED with the connector adapter # DM9523004. The good thing about this kit is that you will not have to cut and splice into the vehicle wiring. You also need to pull a fuse in the Fit. Use the FuseMaster buypass...
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Info for this part was:

Employee Lindsey S
Edited by:
Lindsey S
Employee Kathleen M
Installed by:
Kathleen M
Employee Kristina F
Written by:
Kristina F

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