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Roadmaster InvisiBrake Flat Tow Brake System - Preset - RM-8700

Retail: $1,393.94
Our Price: $1,220.33
In Stock
Plug-and-play: this permanent system gets you automatic braking with a one-and-done installation. Actuator box installs out of your way under the front seat. Adjustable pressure setting for comfortable braking. Charges car battery while towing.
  • Hydraulic Brakes
  • Air Brakes
  • Fixed System
  • Brake Systems
  • Pre-Set System
  • Roadmaster
  • One-Time Setup
  • Vehicle Battery
  • Indicator Lights

Roadmaster 4-Diode Universal Wiring Kit for Towed Vehicles - 7-Way to 6-Way Coiled Adapter Cord - RM-15267

Retail: $206.35
Our Price: $146.93
This complete kit includes everything you need to connect your RV's tail, brake, and turn signal lights to your towed car. Diodes prevent damage from electrical feedback. Includes 7-way to 6-way coiled adapter cord and 6-way socket. length: 27' Notes: A brake light relay (RM-88400 - sold separately) may be required if used with a flat tow brake system. (See below.) A wiring converter (118158 - sold separately) and 2 additional
  • Tail Light Mount
  • Universal
  • Splices into Vehicle Wiring
  • Diode Kit
  • Roadmaster

Roadmaster 4-Diode Universal Wiring Kit for Towed Vehicles - 4-Way Flat Connectors - RM-154

Retail: $117.98
Our Price: $92.93
In Stock
This wiring kit carries your RV's brake and turn signals to your towed car's tail lights. Diodes prevent damage from electrical feedback. Connects RV and towed car with 4-pole flat plugs. Includes installation hardware.; long Plastic loom: 3' long Notes: A brake light relay (RM-88400 - sold separately) may be required if used with a flat tow brake system. (See below.) A wiring converter (118158 - sold separately) and
  • Tail Light Mount
  • Universal
  • Splices into Vehicle Wiring
  • Diode Kit
  • Roadmaster

Replacement Air Hose Kit for Roadmaster InvisiBrake Flat Tow Brake System and Second Vehicle Kit - RM-98710

Our Price: $79.58
Replace the air hoses of your Roadmaster InvisiBrake (RM-8700) or InvisiBrake second vehicle kit (RM-98700).Features: Replaces the air hoses for your Roadmaster InvisiBrake (RM-8700) or Invisibrake second vehicle kit (RM-98700)
  • Hoses
  • Flat Tow Brake System
  • Air Lines
  • Second Vehicle Kit
  • Roadmaster

Replacement Monitor Wire Patch Cord for Roadmaster InvisiBrake System - Male/Male Bullet - RM-450008

Our Price: $25.06
In Stock
Replace the patch cord for the monitor of your Roadmaster InvisiBrake flat tow brake system (RM-8700).Features: Replaces the monitor wire patch cord for your Roadmaster InvisiBrake supplemental braking system (RM-8700) Plugs into the connectors on both the motorhome and the towed car side
  • Patch Cord
  • Flat Tow Brake System
  • Wiring
  • Roadmaster

Replacement 4-Pole Wiring Harness for Roadmaster InvisiBrake Flat Tow Brake System - RM-945204-00

Our Price: $36.76
Replace the wiring harness of your Roadmaster InvisiBrake supplemental braking system (RM-8700). 4-Wire harness plugs into the back of the unit and connects to your towed car's wiring.Features: Replaces the wiring harness for your Roadmaster InvisiBrake braking system (RM-8700) Plugs into the back of the InvisiBrake unit and connects to your towed vehicle's wiring
  • Wiring Harness
  • Flat Tow Brake System
  • Wiring
  • Roadmaster

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New Arrivals — From Our Shop to You!

Chosen by folks who live and breathe this, just like you.

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Kristin etrailer team member

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Replacement 5/8" Vacuum Line Tee for Roadmaster InvisiBrake Flat Tow Brake System - Qty 1 - RM75BQ

Our Price: $9.61
Replaces (1) 5/8" vacuum line tee for Roadmaster InvisiBrake flat tow brake system (RM-8700).Features: Replaces vacuum line tee for Roadmaster InvisiBrake flat tow brake system (RM-8700) Diameter: 5/8" Quantity: 1 replacement tee
  • Tees
  • Flat Tow Brake System
  • Fittings
  • Roadmaster

Second Motorhome Braking Monitor/Alarm Kit for Roadmaster InvisiBrake Systems - RM-98850

Retail: $134.72
Our Price: $109.43
In Stock
Add this LED braking monitor to another RV to use with your Roadmaster InvisiBrake supplemental braking system (8700).Features: Adds a braking monitor to a second motorhome Works with Roadmaster InvisiBrake braking system (RM-8700) Includes: Motorhome monitor LED Audio signal circuit board 50' Black monitor
  • Flat Tow Brake System
  • Second Vehicle Kit
  • Roadmaster

1/8" Air Line Hose for Roadmaster BrakeMaster and Invisibrake Flat Tow Brake System - Per Foot - RM-450701

Our Price: $3.64
In Stock
Get more 1/8" air line hose for your Roadmaster BrakeMaster or Invisibrake supplemental braking system. Sold per foot.-9060 RM-9060-900002 RM-9100 RM-9100-900002 RM-9160 RM-9160-900002 Roadmaster Invisibrake supplemental braking system: RM-8700
  • Hoses
  • Flat Tow Brake System
  • Air Lines
  • Roadmaster

Replacement Breakaway Switch for Roadmaster Flat Tow Brake Systems - Qty 1 - RM-650898

Our Price: $35.94
In Stock
Replace the breakaway switch of your Roadmaster supplemental braking system.Features: Replaces the breakaway switch for your Roadmaster braking system Works with BrakeMaster (RM-9060, RM-9100, or RM-9160), Even Brake (RM-9400), InvisiBrake (RM-8700), and 9700 (RM
  • Flat Tow Brake System
  • Switches
  • Roadmaster

Second Vehicle Kit for Roadmaster InvisiBrake Flat Tow Brake System - RM-98700

Retail: $231.86
Our Price: $164.93
In Stock
Use your Roadmaster InvisiBrake supplemental braking system on a new towed vehicle with this kit. Allows the InvisiBrake to be used with 2 vehicles with additional components.-452109-10), InvisiBrake cable assembly (RM-452109), and 1/4" check valve (all sold separately) Fits Roadmaster InvisiBrake supplemental braking system (RM-8700) Includes: Pulley Cable anchor bracket Brake pedal clamp
  • Flat Tow Brake System
  • Second Vehicle Kit
  • Roadmaster

Replacement Audio Alarm Circuit Board for Roadmaster InvisiBrake Flat Tow Brake System - RM-9325

Retail: $52.98
Our Price: $49.39
Replace the circuit board for the audio alert of your Roadmaster InvisiBrake supplemental braking system.Features: Replaces audio signal circuit board in your Roadmaster InvisiBrake braking system (RM-8700) Ensures that the audible alert functions if your towed car's brakes are activated for too
  • Circuit Board
  • Flat Tow Brake System
  • Wiring
  • Roadmaster

Replacement Cable for Roadmaster InvisiBrake Flat Tow Brake System - RM-452109

Our Price: $174.93
In Stock
Replace the cable of your Roadmaster InvisiBrake supplemental braking system.Features: Replaces the cable for your Roadmaster InvisiBrake braking system (RM-8700)
  • Flat Tow Brake System
  • Cables
  • Roadmaster

Replacement Rubber Vacuum Hose for Roadmaster InvisiBrake Flat Tow Brake System - 3/8" - RM-452137

Our Price: $8.31
In Stock
Replace the 3/8" diameter rubber vacuum hose of your Roadmaster InvisiBrake supplemental braking system.Features: Replaces the rubber vacuum hose of your Roadmaster InvisiBrake braking system (RM-8700) Diameter: 3/8" Quantity: 1 vacuum line rubber
  • Flat Tow Brake System
  • Vacuum Hose
  • Roadmaster

Replacement Brake Pedal Clamp for Roadmaster InvisiBrake Flat Tow Brake System - RM-945202-00

Our Price: $29.33
Replace the brake pedal clamp that comes with your Roadmaster InvisiBrake supplemental braking system. Hardware included.Features: Replaces the brake pedal clamp that comes with your Roadmaster InvisiBrake braking system (RM-8700) Includes the necessary hardware to install on the arm of your brake pedal
  • Flat Tow Brake System
  • Pedal Clamp
  • Roadmaster

Replacement Pulley for Roadmaster InvisiBrake Flat Tow Brake System - Qty 1 - RM-452104-10

Our Price: $29.49
Replaces the pulley for your Roadmaster InvisiBrake supplemental braking system.Features: Replaces the pulley for your Roadmaster InvisiBrake braking system (RM-8700) Quantity: 1 pulley
  • Flat Tow Brake System
  • Pulley
  • Roadmaster

Replacement Rubber Vacuum Hose for Roadmaster InvisiBrake Flat Tow Brake System - 1/2" - RM-452136

Our Price: $7.98
In Stock
Replace the 1/2" diameter rubber vacuum hose of your Roadmaster InvisiBrake supplemental braking system.Features: Replaces the rubber vacuum hose of your Roadmaster InvisiBrake braking system (RM-8700) Diameter: 1/2" Quantity: 1 vacuum line rubber
  • Flat Tow Brake System
  • Vacuum Hose
  • Roadmaster

Adapter Plug for Using Roadmaster Brake Monitor with InvisiBrake - Serial Numbers Up to 21,602 - RM-8700-9530

Our Price: $35.49
In Stock
Use this plug to adapt the Roadmaster universal brake monitor to work with your InvisiBrake with a serial number below 21,603. Plug-and-play design.Features: Adapts the Roadmaster universal brake monitor (RM-9530) for use with your InvisiBrake supplemental braking system with a serial number below 21,603 Limited lifetime warranty
  • Flat Tow Brake System
  • Brake Monitoring
  • Roadmaster

Roadmaster Direct-Connect Base Plate Kit - Removable Arms - RM-521451-5

Retail: $750.54
Our Price: $525.00
In Stock
Designed for use with motor-home-mounted tow bars, the direct-connect brackets are virtually invisible, easy to mount and remove, and they eliminate the need for a quick-disconnect crossbar on your tow bar. Installs on your vehicle's frame.
  • Partially Hidden
  • Removable Draw Bars
  • Twist Lock Attachment
  • Roadmaster

Pulley Mounting Bracket for Roadmaster InvisiBrake Flat Tow Brake System - RM-8700-PBC

Our Price: $34.15
In Stock
Helps you install the pulley mechanism for your Roadmaster InvisiBrake in a vehicle that doesn't have a suitable mounting location in the firewall.
  • Brackets
  • Flat Tow Brake System
  • Hardware
  • Roadmaster

Demco Stay-IN-Play Duo Flat Tow Brake System for RVs w/ Hydraulic Brakes - Proportional - SM99251

Retail: $1,384.00
Our Price: $1,175.00
In Stock
Plug in and go: this permanent system gets you smooth, reliable braking with a one-and-done installation. Low-profile components designed to stay out of sight.
  • Hydraulic Brakes
  • Fixed System
  • Brake Systems
  • Proportional System
  • Demco
  • One-Time Setup
  • Vehicle Battery
  • Indicator Lights

Roadmaster Stop Light Switch Kit - RM-751471

Retail: $71.32
Our Price: $41.69
In Stock
Avoid damage to your towed car by ensuring that your supplemental braking system is properly positioned and working effectively. Kit activates your RV monitoring system to alert you when the brakes of your towed car are being applied.
  • Stop Light Switch
  • Roadmaster

Roadmaster Crossbar-Style Base Plate Kit - Removable Arms - RM32ZR

Retail: $575.00
Our Price: $525.00
Roadmaster's crossbar-style brackets are virtually invisible, easy to mount and simple to remove. Brackets install on your vehicle's frame to provide attachment points for your tow bar.
  • Partially Hidden
  • Removable Draw Bars
  • Twist Lock Attachment
  • Roadmaster