How to Connect Magnetic Trailer Lights with 4-Way Connector to RV with 7-Way Connector for Brakes
Question:
RE: Optronics Trailer Lights TL21RK comes with the 4-pole flat connector. I have a round 7-pin connector on the RV that connects to the tow dolly and also incorporates a Primus IQ Brake Controller. Any suggestions on how to mate the flat connector for the magnetic tow lights?
asked by: Dan R
Expert Reply:
In order to connect the Optroncis Magnetic Tow Lights # TL21RK to the 7-way trailer connector on your RV you would need to cut off the 4-way on the lights and wire them in to the existing 7-way on your tow dolly (If there is one) or add a new 7-way connector # H20046.
You'll need to wire the brake circuit wires on the dolly to the # H20046 as well so the 7-way on the dolly will be fully functioning. If you prefer it might be easier to use a 7-way with a junction box # HS381-9000.
Products Referenced in This Question
Hopkins 7-Way RV Style Connector with Molded Cable - Trailer End - 8' Long - RV Standard
- Trailer Wiring
- Trailer Connectors
- Trailer End Connector
- 6 - 10 Feet Long
- Plug and Lead
- 7 Round - Blade
- Hopkins
more information >
Wiring Kit for Hydrastar Electric Over Hydraulic Actuators
- Accessories and Parts
- Brake Actuator
- Disc Brakes
- Hydraulic Drum Brakes
- Wiring
- Hydrastar
more information >
Product Page this Question was Asked From
Heavy Duty Magnetic Tow Lights - 20' Wiring Harness with 4-Way Flat Trailer Connector
- Tow Bar Wiring
- Bypasses Vehicle Wiring
- Removable Tail Light Kit
- 20 Foot Long Harness
- Universal
- Magnetic Mount
- Optronics
more information >
Featured Help Information
Instructions
Miscellaneous Media
Continue Researching
- Shop: Vehicle Tow Bar Brake System
- Shop: Base Plate for Tow Bar
- Shop: Vehicle Tow Bar Wiring
- Shop: Blue Ox Patriot Portable Flat Tow Brake System - Proportional
- Shop: Roadmaster Direct-Connect Base Plate Kit - Removable Arms
- Search Results: tow bar braking systems
- Shop: etrailer SD Non-Binding Tow Bar for Roadmaster Crossbar-Style Base Plates - RV Mount - 6,000 lbs
- Shop: Roadmaster Falcon 2 Tow Bar - RV Mount - 2" Hitch - 6,000 lbs
- Shop: Roadmaster Diode 7-Wire to 6-Wire Flexo-Coil Wiring Kit
- Video: Roadmaster Adapter for Jeep D-Ring Bumper Mounts Installation - 2020 Jeep Wrangler Unlimited
- Video: Blue Ox Patriot Portable Braking System Installation - 2022 Ford F-150
- Shop: etrailer XHD Non-Binding Tow Bar for Duncan Base Plates - RV Mount - 2" Hitch - 10,500 lbs
- Shop: Brake Buddy Classic 3 Portable Flat Tow Brake System - Preset
- Shop: Trailer Hitch
- Q&A: Parts Needed to Flat Tow a 2022 Jeep Gladiator
- Search Results: rm~910029
- Search Results: blue ox patriot braking system
- Search Results: roadmaster tow bar wiring
- Search Results: tow bar base plates
- Search Results: brake systems
- Search Results: roadmaster tow bar
- Video: Blue Ox Base Plate Kit Installation - 2021 Jeep Gladiator
- Video: Roadmaster Direct-Connect Base Plate Kit Installation - 2021 Jeep Gladiator
- Q&A: Flat Towing Vs. Using a Tow Dolly for Jeep Wrangler
- Q&A: Does etrailer.com Offer Hitch Installation
- Video: Blue Ox Avail Tow Bar Installation - 2021 Jeep Wrangler Unlimited
- Q&A: Cable Lock Recommendation for Securing Generator in Bed of Truck
- Q&A: How Long Does It Take To Install Roadmaster Base Plates on a 2020 Jeep Gladiator
- Q&A: How Does The Blue Ox Patriot System Get Signal To Apply Brakes
- Shop: Trailer Wiring