Does Roadmaster Invisibrake System Require Installing Diodes too
Updated 01/06/2026 | Published 01/02/2026
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Question:
Currently have 2018 wrangler jl and want to know about moving invisibrake. I looked at install video and parts for second vehicle install but didnt see any wiring going to taillights. The current install required splicing 3 way diodes into the vehicle wiring. Is there a seperate part number for the taillight wiring, diodes etc?
asked by: William H
Expert Reply:
Hey William, so what you are describing sounds like two different kits installed on the Wrangler for flat towing. The braking solution which is the Invisibrake part # RM-8700 and the diode lighting kit that wires to the taillights. These are separate systems and don't interact with each other but you do need both to safely flat tow.
For a diode lighting kit that fits though you'd want the Roadmaster kit part # RM-15267. Do you have a tow bar and base plate kit already?
Product Page this Question was Asked From
Roadmaster InvisiBrake Flat Tow Brake System - Preset
- Flat Tow Brake System
- Brake Systems
- Pre-Set System
- One-Time Setup
- Vehicle Battery
- Fixed System
- Power Assist Brake Compatible
- Air Brakes
- Hydraulic Brakes
- Indicator Lights
- Roadmaster
more information >
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on Flat Tow Brake System
William H.
1/6/2026
We have not bought a new wrangler yet. Just getting info to see what I need. Not sure if the equipment (base plate, tow bar) from the 18 wrangler can be installed on 2025. If original equipment will work, I will remove and reinstall as this was easiest part of install. If not, can you give me part #s? I believe the tow bar is a Nighthawk with a gravel shield kit. I believe I previously ordered everything from etrailer.