Parts Needed to Use the Roadmaster InvisiBrake Flat Tow Brake System In Two Separate Vehicles
Updated 09/29/2025 | Published 09/10/2025
Products Featured in This Question
Question:
I want to move my roadmaster invisabrake 8700 control box between two vehicles. In the second vehicle install kit I don’t see the cylinder or mounting hardware. Is this just missing from photos or do I need more
asked by: Bob
Expert Reply:
Hey Bob. Those parts are available separately but are not included in the Second Vehicle Kit for Roadmaster InvisiBrake Flat Tow Brake System item # RM-98700. To move the Roadmaster InvisiBrake Flat Tow Brake System item # RM-8700 back and forth to a second vehicle you'll also need the following parts:
Replacement Air Cylinder for Roadmaster Even Brake Flat Tow Brake System item # RM-452109-10
Replacement Cable for Roadmaster InvisiBrake Flat Tow Brake System item # RM-452109
Replacement 1/4" Vacuum Check Valve for Roadmaster InvisiBrake Second Vehicle Kit item # RM56RR
What's your 2nd tow vehicle?
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 >
Featured Help Information
Instructions
Continue Researching
- Search Results: rm156~25
- Search Results: rm8700
- Shop: Roadmaster InvisiBrake Flat Tow Brake System - Preset
- Shop: Roadmaster Battery Charge Line Kit for Towed Vehicles
- Search Results: base plate for tow bar
- Shop: Replacement Cable for Roadmaster InvisiBrake Flat Tow Brake System
- Shop: Replacement Air Cylinder for Roadmaster InvisiBrake Flat Tow Brake System
- Shop: Roadmaster Direct-Connect Base Plate Kit - Removable Arms
- Q&A: Replacement InvisiBrake Installation Kit For 2019 Jeep Cherokee
- Shop: Roadmaster Nighthawk All-Terrain Tow Bar w/ LED Lights - Non-Binding - RV Mount - 8,000 lbs
- Shop: Roadmaster Stop Light Switch Kit
- Shop: Trailer Hitch
- Video: Second Vehicle Kit for Roadmaster InvisiBrake Flat Tow Brake System Spec Review
- Video: Installing the Roadmaster InvisiBrake Flat Tow Brake System on your 2014 Jeep Wrangler
- Video: Roadmaster Variable Voltage LED Tail Lights Wiring Kit Installation - 2022 Jeep Cherokee
- Video: DIY Install: Roadmaster Direct-Connect Base Plate Kit on your 2024 Jeep Wrangler
- Search Results: tow bar braking systems
- Search Results: vehicle tow bar wiring
- Search Results: brake away switch
- Search Results: flat tow brake system
- Article: Wiring Trailer Lights with a 4-Way Plug (It's Easier Than You Think)
- Shop: Trailer Wiring
- Q&A: What is the Difference Between a Class II and a Class III Hitch?
- Article: Trailer Wiring Diagrams
- Video: An In-Depth Look at the Roadmaster Battery Charge Line Kit for Towed Vehicles
- Article: Brake Controller 7- and 4-Way Installation Kit (ETBC7)
- Q&A: Which is Better Roadmaster or Blue Ox Tow Bar
- Video: An In-Depth Look at the Roadmaster Diode 7-Wire to 6-Wire Flexo-Coil Wiring Kit
- Article: How to Measure for Trailer Hitch Drop
- Q&A: Lug Nut Torque Chart for Trailer Wheels
on Flat Tow Brake System
Jerred H.
9/29/2025
Hey Bob, did you have a chance to gather the parts needed to move your InvisiBrake system between vehicles? I'm asking because it could help others who want to do the same.