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RoadMaster 4-Wire Connector - Trailer End
(34 reviews)
Price: $7.92
In Stock
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RoadMaster 4-Wire Connector - Trailer End
Part Number: RM-910030-2
In Stock
$7.92
We'll connect you with nearby partnered installers who know this exact setup.
- All Info
- Reviews (34)
- Q & A (0)
- Videos (1)
- Photos
Roadmaster Trailer Wiring - RM-910030-2
- Trailer Connectors
- Trailer End Connector
- Plug Only
- 4 Round
- Roadmaster
Create your own cord or replace the damaged ends on your RoadMaster 4-wire straight and Flexo-Coil electrical cords with this 4-pole, female connector.
Features:
- Replaces lost or damaged 4-pole, round trailer-end connectors
- Fits RoadMaster 4-wire straight and Flexo-Coil electrical cords
910030-2 RoadMaster 4-Way Round, Trailer-End Connector
Video of RoadMaster 4-Wire Connector - Trailer End
Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.
Video Transcript for Ultimate Overview of the RoadMaster 4-Wire Connector
Hello everybody, this is Jeff at etrailer.com. Today we've gonna take a look at this Roadmaster Trailer and Four Wire Connector. Now this part here, will let you create your own cord or replace the damaged ends on your Roadmaster four wire straight and the Roadmaster Flexicoil electrical cords that have this four-way female connector on it. Basically, I wanted to show you how you install your wires in this. What you'll first wanna do is find where that little Phillip screw is right there and then you'll get a little Phillip screwdriver and then you'll just loosen that screw. And then once you get that screw out, you'll see that the whole inside will slide right out.
Pull off the cover and then you'll have your connections right there. So what you'll want to do is run your wires through the back here, through this grommet, pull your wires through there, slide on this sleeve onto the wires and then make your connections to the correct correction or the correct points on your connector there. Once you get that, slide the sleeve up to cover those and then slide the whole unit right back in there. Line up the hole there, get your Phillips screw and then just line that up. And then once you get that lined up, go ahead and put the screw in there and then just tighten it down just like that and snug it down to hold it in place and then you'll be all ready to go.
But that should do it for the review on this Roadmaster trailer and four wire connector.
Ratings & Reviews
4.9
34 reviews
by:
David
09/17/2019
Perfect replacement for Roadmaster four prong trailer connector. Decent quality and great price. Quick shipping.
by:
Raymond
07/26/2026
fit perfectly just what i needed great price thanks
by:
Leon
10/06/2025
I sent e-mail reply; after re-assembly, set screw will not tighten sufficiently thus allowing inner part to move back and forth within housing. At least now I have power to my dingy.
by:
Scott
10/17/2018
Great quality replacement for an old connector that was weathered. Perfect for my existing RV tow car wiring.
by:
Pete M
01/01/2017
This plug seems to be of decent quality. I was unable to use though as the 4 pin socket I bought is incompatible. I was (falsely it turns out) under the impression that a round 4 pin was a round 4 pin. The Pollak PK11404 receptacle has 1 pin of one size and the other 3 pins slightly larger. Just an FYI.
by:
587
02/10/2020
Worked great to extend lights from our motorhome to the towed vehicle.
by:
Larry
10/05/2021
Replacement item. Had all parts that I needed.
Thanks
Thanks
by:
David, Poulsbo WA
10/20/2022
Order was on time and customer service outstanding.
by:
Michael
08/19/2023
Replacement for an older vehicle, arrived as promised.
by:
Pastor Bob
10/10/2017
The product discription, when delivered, was exactly as advertised. I am extremely pleased and believe that I received an excellent value for the money spent.
Thank you.
Thank you.
by:
Michael
09/06/2022
It was right part, and we are glad that you have. Thank you very much.
by:
Martin K
10/20/2017
great job very efficient, glad it got done quickly
by:
Johan
02/03/2018
Easy install. Working great after 7 months of constant RVing!
by:
Clark
08/19/2022
Hard to find item locally. Needed to adapt to existing system.
by:
Robert c.
11/07/2017
received in timely manner. have not used yet, but looks like the old one i replaced. Better quality than Original. BB
by:
Norm S
05/12/2015
Product was just what I wanted and the quality was excellent.
Thanks for the quick service.
Thanks for the quick service.
by:
William
06/01/2022
Very good parts.looks like it will last for me for a good while..
by:
Carl
06/04/2020
Great connector. Very difficult to find these days. Fast shipping.
Thank you!
Thank you!
by:
Dennis
11/03/2014
Product was exactly what I needed and was delivered very quickly.
by:
Ray Alloway
08/18/2016
exactly what i needed fast shipment no problem
by:
Lario
06/03/2016
Quality made product. Easy to wire up.
by:
Larry
08/23/2020
Got what I needed, when I wanted it!
by:
Jodie
03/01/2024
by:
Sandra
08/17/2022
by:
Gary
04/26/2021
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See what our Experts say about this Roadmaster Trailer Wiring
- Connecting Roadmaster Sterling Tow Bar Wiring Extension To Jeep with 4-Pin Round ConnectorI have a solution for you, but we do not have a pre-wired adapter to allow you to connect the 6-pin round plug from the tow bar to a 4-pin round plug on your Jeep. One solution is to replace the 4-pin round connector on your jeep with a 6-pin round socket, # RM-910030-7. The Sterling Tow Bar # RM-576 includes a 6-pin round socket that will work well to replace the 4-pin round socket on your Jeep. You can remove the wires from the 4-pin connector, taking the connector apart with a small...
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- What is the Outer Diameter of RoadMaster 4-Wire Connector - Trailer EndI went out to the warehouse to measure 4-Way male connector # RM-910030-2. The outer diameter where it plugs in measures 0.80 inches. I used a set of digital calipers to take the measurement.
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- Replacing a 4 Round to Both RV and Tow Vehicle PigtailThe wiring for the male connector is the upper right (3 position) is Left Turn and Stop, Lower Right (1 Position) Ground, Lower Left (2 position) Tailights, and Upper Left (4 position) Right Turn and Stop. I have included a diagram showing the corresponding wiring that is explained in the installation instructions for your reference. Please make sure that you are wire by function not just by wire color, and I recommend testing the output on your RV to make sure this is done correctly....
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- How To Wire 4-Way Round Connector For Flat Towing A 2006 Honda CR-VFirst off thank you for purchasing your flat tow products through us! The RoadMaster 4-Wire Connector # RM-910030-2 you were looking at is not color coded for wiring on the connector itself, but I would be happy to help make sure you get it wired correctly. The typical way a 4-way round connector is wired is as shown in the included diagram. If your 4-way round is not wired in the manner, or if the wire colors on your existing cord are not the standard green, yellow, brown, and white,...
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- 4-Way Round to 7-Way Blade and 7-Way Round to 7-Way Round Adapter AvailabilityThose adapter configurations aren't high enough in demand to be available but you can definitely make them. For a 4-way round male you'd need part # RM-910030-2 and for a 7-way female part # PK12703. For jacketed 4-way wiring sold by the foot you'd then want the part # DW04923-1. Then for a 7-way male round you'd want the part # PK11700 and for female part # PK11720 and then for wiring part # DW04914-1 which is also sold by foot.
view full answer... - Tow Bar, Base Plate, Wiring Recommendations for 1995 Honda Del SolYes, the RoadMaster Blackhawk 2 All Terrain Tow Bar - 10,000 lbs part # RM-422 will work to tow your 1995 Honda Delsol. In order to mount the tow bar to your Delsol AND to your RV you will need Roadmaster XL Base Plate Kit - Removable Arms - 1995 Del Sol by Honda part # 510-1. This mounts to the front of your Delsol and is what the tow bars attach to so you are able to tow your vehicle. Due to the variances on the lower panels, trimming the splash panel may be required. As far as the...
view full answer... - Is There a 4 Round to 7 Round AdapterWe have a possible solution for you but there is no such thing as a 4-round to 7-round adapter; you would need to make your own. What you could do is use the Custer Trailer Connector Adapter - 4-Way Flat to 7-Way Round # KIT-7P-4, cut off the 4-way flat and wire in the RoadMaster 4-Wire Connector # RM-910030-2.
view full answer... - Replacement Roadmaster 4-Wire Connector Recommendation for a Broken Flexo 4-WayYes, you will need a RoadMaster 4-Wire Connector # RM-910030-2. I attached a set of installation instructions for this product too to show you how it will get installed.
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Do you have a question about this Trailer Wiring?
Info for this part was:
Expert Research:
Michael H
Expert Research:
Jameson C
Installed by:
Jeff D
Updated by:
Wilson B
Updated by:
Hannah L
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