Recommended Baseplate and Wiring Harness for a 2026 Jeep Wrangler Rubicon
Updated 07/19/2026 | Published 07/15/2026
Products Featured in This Question
Question:
I have a 2026 Jeep Wrangler Rubicon Unlimited that I plan on flat towing behind my 2018 Chevrolet Silverado 3500 Dually. I currently have a Blue Ox tow bar and a Patriot 3 brake system for it. I do not have any of the wiring for the Jeep and would like to install a diode system. Can you build me a list of parts I need to buy to accomplish this. Such as a plug and play wiring kit and a dedicated cigarette lighter to power the Patriot 3 brake system. Thank you
asked by: Clark W
Expert Reply:
I sure can Clark and congrats on the new Jeep! Since you already have a Blue Ox tow bar and their Patriot 3 Braking system item # BLU37TR, here are the rest of the parts you'll need to flat tow your 2026 Jeep Wrangler Rubicon:
Baseplate - Blue Ox Base Plate Kit item # BX1139
Wiring Harness - Roadmaster Smart Diode Kit- 7-Way to 6-Way Adapter Cord item # RM63MR or the Roadmaster Smart Diode Kit item # RM47ZR if you don't need the 7-way to 6-way cable. There's no plug and play wiring harness that functions correctly with the electrical system and lights on the 2026 Jeep Wrangler Rubicon.
Since you're using the Blue Ox Patriot item # BLU37TR, you'll also need the 12 Volt Outlet Kit item # RM-9332. This runs a power wire directly to your battery. It'll provide a 12v accessory plug/cigarette lighter to power your braking system.
Since the Blue Ox Patriot item # BLU37TR draws power directly from your Jeep's battery, I highly recommend you install the Roadmaster Battery Charge Line Kit item # RM-156-25. This will allow your Silverado to provide a trickle charge to your Jeep's battery. It'll insure your braking system is always powered and you'll never arrive to your destination with a dead battery.
I linked installation videos below for all of these parts so you can see how to get them set up on your Jeep.
What kind of trips do you plan on taking when you get your Jeep all set up?
You can add this information, along with any other questions you have, where it says Add Comment.
(click to enlarge)
Stephen C.
7/19/2026
Be aware that every time on the jeep that you hit the brakes and the brake lights light up, it wakes up the computer runs a diagnostic and takes a lot to shut down. We found towing a jeep Rubicon over 15,000 miles behind their motorhome that the unit often had drained the battery. I finally went back to just a simple four-way plug-in with wires going and magnetic lights on the back. As far as the base plate goes, it takes him out two hours to install and you can cut the skid plate with a hacksaw blade in a jigsaw. On a sidenote, if you happen to be driving from Whitehorse to Dawson city, the roads are so bad that it actually broke my base plate on the jeep, but this is important. It was not the base plates fault when you take a jeep and you launch it off the pavement and it comes back down. It does some damage that’s how bad the roads were.
Jerred H.
7/19/2026
Product Page this Question was Asked From
Blue Ox Base Plate Kit - Removable Arms
- Tow Bar Base Plate
- Removable Draw Bars
- Twist Lock Attachment
- Completely Hidden
- Blue Ox
more information >
Featured Help Information
Instructions
Miscellaneous Media
Continue Researching
- Shop: Base Plate for Tow Bar
- Search Results: base plate for tow bar
- Shop: Vehicle Tow Bar Wiring
- Search Results: tow bar
- Video: Roadmaster Direct-Connect Base Plate Kit DIY Install - 2026 Jeep Wrangler Unlimited
- Search Results: trailer hitch
- Shop: Blue Ox Base Plate Kit - Removable Arms
- Shop: Vehicle Tow Bar Brake System
- Shop: Roadmaster Direct-Connect Base Plate Kit - Removable Arms
- Video: Roadmaster Smart Diode Kit Installation Guide - 2026 Jeep Wrangler Unlimited
- Video: Easily Install Your Roadmaster Battery Charge Line Kit - 2026 Jeep Wrangler Unlimited
- Video: Installation Guide Blue Ox Base Plate Kit - 2026 Jeep Wrangler Unlimited
- Shop: etrailer Invisible Base Plate Kit - Removable Arms
- Video: How to Install the Roadmaster Direct-Connect Base Plate Kit - 2026 Jeep Wrangler
- Shop: Trailer Hitch
- Video: DIY Installation etrailer Invisible Base Plate Kit - 2026 Jeep Wrangler
- Video: etrailer Invisible Base Plate Kit DIY Installation - 2026 Jeep Gladiator
- Shop: Roadmaster Battery Charge Line Kit for Towed Vehicles
- Search Results: flat tow wiring harness
- Shop: Demco Stay-IN-Play Duo Flat Tow Brake System for RVs w/ Hydraulic Brakes - Proportional
- Search Results: 50 amp surge protector
- Shop: etrailer Invisible Base Plate Kit - Removable Arms
- Search Results: flat towing
- Search Results: invisibrake
- Shop: Roadmaster Smart Diode Kit for Variable Voltage LED Tail Lights - 7-Way to 6-Way Adapter Cord
- Q&A: Parts Needed to Switch Roadmaster InvisiBrake Supplemental Braking System to Different Vehicle
- Q&A: Flat Tow Parts Recommendations for a 2025 Jeep Wrangler
- Q&A: Replacement Adapter Wiring For Mopar Flat Towing Harness On a 2019 Jeep Wrangler
- Q&A: How to Install the Blue Ox Base Plate Kit Part # BX1139 on a 2018 Jeep JL Wrangler Unlimited
- Q&A: Parts Needed to Flat Tow 2025 Jeep Wrangler Sport
on Tow Bar Base Plate
Clark W.
7/18/2026
Thank you very much!