Combined 7-Way and 4-Way Flat Connector for Motorhome
Question:
Tow Vehicle: 2016 Newmar Bay Star 3124 Tow Dolly: 2018 Demco Kar Kaddy SS w/4-way flat connector Towed Vehicle: 2017 Toyota Yaris iA 4 door sedan Goal: Having both tow dolly lights 4-way flat connector and wireless lights 7-way connector on towed vehicle. Tow dolly has 4-way flat connector for its lights. Although there is currently a 7-way connector on the RV, it DOES NOT have the wiring harness connector on the back that can be disconnected/removed to add your Part # C55384, Curt T-connector 4-pole flat connector. I want to replace the current 7-way connector with your Part # HM47210, Hopkins Endurance Quick Install 7-way Connector, and then include your Part # C55384 which will provide power to the 4-way flat connector for the tow dolly and use the 7-way connector to power your Part # RM-2120, Magnetic Tow Lights. My question: will the C55384 work with the HM47210 without any modification i.e. will it plug and play
asked by: Bill E
Helpful Expert Reply:
There is a way for you to replace the 7-way on your motorhome with a combined 4-way and 7-way so you can plug in the Roadmaster Magnetic Tow Lights # RM-2120 to the 7-way and your Kar Kaddy to the 4-way, though you will not be able to use the parts you were referring to because you do not have the wiring harness connector (also called a U.S. car connector).
Instead what you can do is use the Adapter 4-Pole to 7-Pole # 37185 and cut off the 4-way connector. All you have to do at that point is splice this into the wires that remain after you removed your current 7-way and you will have a working 4-way and 7-way.
Products Referenced in This Question
No-Drill Mount for Electrical Mounting Bracket - Short
- Accessories and Parts
- Trailer Wiring
- Mounting Hardware
- Brackets
- 4 Flat
- 5 Flat
- 4 Round
- 5 Round
- Tow Ready
more information >
Adapter 4-Pole to 7-Pole and 4-Pole
- Trailer Wiring
- Wiring Adapters
- Multi-Function Adapter
- 4 Flat
- Plug and Lead
- 4 Flat
- 7 Round - Blade
- Hopkins
more information >
Product Page this Question was Asked From
Roadmaster Standard Magnetic Tow Lights
- Tow Bar Wiring
- Bypasses Vehicle Wiring
- Removable Tail Light Kit
- 20 Foot Long Harness
- Universal
- Magnetic Mount
- Roadmaster
more information >
Featured Help Information
Instructions
Miscellaneous Media
Continue Researching
- Shop: Vehicle Tow Bar Brake System
- Video: Roadmaster Universal Diode Wiring Kit Installation - 2021 Jeep Wrangler
- Search Results: roadmaster hitch extender
- Search Results: quiet hitch
- Video: Demco SBS Stay-IN-Play DUO Supplemental Braking System Installation - 2020 Jeep Wrangler
- Shop: Roadmaster Sterling All-Terrain Tow Bar - Non-Binding - RV Mount - 2" Hitch - 8,000 lbs
- Q&A: Recommended Flat Towing Equipment For A 2015 Jeep Wrangler JK Sport
- Video: SMI Stay-IN-Play DUO Braking System Installation - 2019 Jeep Wrangler
- Article: Tow Bar Wiring Overview
- Video: Roadmaster Tow Bar Installation - 2012 Jeep Wrangler
- Shop: Demco Stay-IN-Play Duo Flat Tow Brake System for RVs w/ Hydraulic Brakes - Proportional
- Video: Roadmaster Battery Charge Line Kit Installation - 2015 Jeep Wrangler
- Video: Roadmaster Battery Charge Line Kit Installation
- Shop: Roadmaster Battery Charge Line Kit for Towed Vehicles
- Shop: Roadmaster Accessory Kit for Nighthawk and Sterling Tow Bars - Tail Light Wiring - Lock Set
- Shop: Roadmaster Stop Light Switch Kit
- Shop: Base Plate for Tow Bar
- Shop: Vehicle Tow Bar Wiring
- Search Results: 18140
- Video: Roadmaster Tow Defender Protective Screening Review RM-4700
- Shop: Roadmaster Hitch Extender for Tow Bars - 2" Hitches - 7-3/4" Extension
- Shop: Roadmaster Quiet Hitch for 2" Trailer Hitches
- Q&A: Where To Mount Breakaway Switch And Tow Bar Wiring Kits On A 2019 Dodge Ram Rebel
- Q&A: Choosing Between the Brake Buddy Select 3 and the Blue Ox Patriot Supplemental Braking System
- Search Results: tow bar
- Article: Trailer Wiring Diagrams
- Search Results: base plates
- Q&A: Which is Better Roadmaster or Blue Ox Tow Bar
- Article: Roadmaster Vehicle Specific Base Plates
- Search Results: base plate
on Tow Bar Wiring
