Installing 7-way on 2013 Jeep Wrangler Unlimited w/ OEM 4-Pole Trailer Connector
Updated 09/03/2014 | Published 09/01/2014
Products Featured in This Question
Question:
I dont see how this would connect in my 2013 Jeep Wrangler. The factory installed 4 wire doesnt have a disconnect by the hitch, it runs to the passenger side tail light. Are we sure this is a plug and play option for this vehicle? Looks like only the hardware option would be available. Has everyone found this connector under their Jeeps?
asked by: John K
Expert Reply:
The # HM42190 is a replacement wiring harness for a Wrangler Unlimited that's already equipped with a 7-way. If you don't have the OEM 7-way, the connector won't be present.
To convert your existing 4-pole to t a 7-way, use the # 37185 adapter. The adapter would plug directly into the 4-pole, with 4 remaining wires to be connected. The white wire is grounded to the vehicle frame, the blue wire would be extended with a length of 10 gauge wire and connected to the output circuit of your brake controller. The black wire usually provides a 12-volt accessory feed to the trailer. If needed, the circuit would be ran to the positive battery terminal via a 40 amp circuit breaker like part # 9510. The purple wire is usually used for reverse lights on the trailer. If the blue, black or purple wire isn't needed, you can bundle the wires up out of the way and cap the ends off.
If you will be pulling a trailer with trailer brakes, you'll want a brake controller to actuate them. I'd recommend the Tekonsha Primus, part # TK90160. If you're installing a brake controller, you'd want to use our Brake Controller Installation Kit, part # ETBC7, which includes the parts mentioned above, plus all the necessary hardware, wire, and circuit breakers needed to install your brake controller.
To see an install video and a help article about brake controllers, click the provided links.
Featured Help Information
Miscellaneous Media
Continue Researching
- Shop: Brake Controller
- Q&A: Brake Controller and Install Wiring Needed for 2014 Jeep Wrangler Unlimited
- Q&A: 2025 Toyota Sienna Wiring Needed for the Tekonsha Prodigy RF Brake Controller
- Shop: Trailer Hitch
- Q&A: Parts Needed to Install Tekonsha Voyager ID on 2020 GMC Yukon
- Shop: Blue Ox TrackPro Weight Distribution w/ Sway Control - 11-Hole Shank - 6K GTW, 600 lbs TW
- Shop: Wheel Masters Tire Pressure Valve Extenders - Straight - 4" Long - Qty 2
- Article: Brake Controller 7- and 4-Way Installation Kit (ETBC7)
- Q&A: Comparing Curt and Draw-Tite Trailer Hitch Receivers for 2022 Hyundai Tucson
- Shop: Trailer Wiring
- Video: Customer Review - Curt MV Weight Distribution System
- Video: Feature Review Fastway e2 Weight Distribution w/ 2-Point Sway Control
- Shop: Reese Weight Distribution - No Shank - Trunnion Bar - 6,000 lbs GTW, 600 lbs TW
- Shop: Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector
- Shop: Curt Echo Wireless Brake Controller - 7-Way Plug-in w/ Bluetooth App - Up to 2 Axles - Proportional
- Shop: Universal Installation Kit for Trailer Brake Controller - 7-Way RV and 4-Way Flat - 10 Gauge Wires
- Shop: Curt MV Weight Distribution System - Round Bar - 6,000 lbs GTW, 600 lbs TW
- Video: Set up: Rampage Custom Towing Mirrors for Jeep on a 2013 Jeep Wrangler Unlimited
- Video: Install: K-Source Snap & Zap Custom Towing Mirrors on a 2009 Jeep Wrangler Unlimited
- Video: How to Install: CIPA Universal Fit Towing Mirror on your 2007 Jeep Wrangler Unlimited
- Shop: Towing Mirrors
- Article: 5 Things to Know About Weight Distribution Hitches
- Search Results: trailer hitch
- Video: How to Choose a Trailer Brake Controller
- Q&A: What is the Difference Between a Class II and a Class III Hitch?
- Article: Trailer Wiring Diagrams
- Video: Redarc Tow-Pro Liberty Brake Controller Review RED24FR
- Search Results: trailer wiring
- Q&A: What is the Difference Between a 4-Way and 7-Way Trailer Connector
- Q&A: Lug Nut Torque Chart for Trailer Wheels
on Custom Fit Vehicle Wiring
