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

Retail: $1,533.33
Our Price: $1,380.00
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.
  • Fixed System
  • Hydraulic Brakes
  • Air Brakes
  • Pre-Set System
  • Brake Systems
  • Roadmaster
  • One-Time Setup
  • Vehicle Battery
  • Indicator Lights

Replacement Air Cylinder for Roadmaster InvisiBrake Flat Tow Brake System - RM-452109-10

Retail: $181.94
Our Price: $147.52
In Stock
Replace the actuator of your Roadmaster InvisiBrake supplemental braking system (RM-8700).Features: Replaces the actuating cylinder for your Roadmaster InvisiBrake braking system (RM-8700) Fits: Roadmaster InvisiBrake supplemental braking systems: RM-8700
  • Air Cylinder
  • Flat Tow Brake System
  • Roadmaster

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

Retail: $86.53
Our Price: $71.64
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
  • Air Lines
  • Second Vehicle Kit
  • Flat Tow Brake System
  • Roadmaster

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

Our Price: $24.42
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
  • Wiring
  • Flat Tow Brake System
  • Roadmaster

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

Our Price: $9.53
In Stock
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
  • Fittings
  • Flat Tow Brake System
  • Roadmaster

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

Retail: $45.07
Our Price: $37.34
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
  • Wiring
  • Flat Tow Brake System
  • 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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Second Motorhome Braking Monitor/Alarm Kit for Roadmaster InvisiBrake Systems - RM-98850

Retail: $148.19
Our Price: $109.50
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
  • Second Vehicle Kit
  • Flat Tow Brake System
  • Roadmaster

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

Our Price: $3.42
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
  • Air Lines
  • Flat Tow Brake System
  • Roadmaster

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

Retail: $51.42
Our Price: $34.35
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
  • Switches
  • Flat Tow Brake System
  • Roadmaster

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

Retail: $320.03
Our Price: $211.90
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
  • Second Vehicle Kit
  • Flat Tow Brake System
  • Roadmaster

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

Retail: $52.37
Our Price: $48.82
In Stock
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
  • Wiring
  • Flat Tow Brake System
  • Roadmaster

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

Our Price: $184.63
In Stock
Replace the cable of your Roadmaster InvisiBrake supplemental braking system.Features: Replaces the cable for your Roadmaster InvisiBrake braking system (RM-8700)
  • Cables
  • Flat Tow Brake System
  • Roadmaster

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

Retail: $40.25
Our Price: $30.48
In Stock
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
  • Pedal Clamp
  • Flat Tow Brake System
  • Roadmaster

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

Retail: $7.79
Our Price: $7.20
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
  • Vacuum Hose
  • Flat Tow Brake System
  • Roadmaster

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

Retail: $8.69
Our Price: $7.88
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
  • Vacuum Hose
  • Flat Tow Brake System
  • Roadmaster

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

Retail: $48.59
Our Price: $32.98
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
  • Pulley
  • Flat Tow Brake System
  • Roadmaster

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

Retail: $226.99
Our Price: $180.91
In Stock
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
  • 7 Blade to 6 Round
  • Diode Kit
  • Splices into Vehicle Wiring
  • Roadmaster
  • Universal Fit

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

Retail: $159.37
Our Price: $100.94
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
  • 4 Flat
  • Diode Kit
  • Splices into Vehicle Wiring
  • Roadmaster
  • Universal Fit

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

Retail: $37.06
Our Price: $25.82
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
  • Brake Monitoring
  • Flat Tow Brake System
  • Roadmaster

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

Our Price: $35.78
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
  • Hardware
  • Flat Tow Brake System
  • Roadmaster

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

Retail: $827.11
Our Price: $575.00
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
  • Twist Lock Attachment
  • Removable Draw Bars
  • Roadmaster

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

Retail: $632.50
Our Price: $575.00
In Stock
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
  • Twist Lock Attachment
  • Removable Draw Bars
  • Roadmaster

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

Retail: $1,468.00
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.
  • Fixed System
  • Hydraulic Brakes
  • Proportional System
  • Brake Systems
  • Demco
  • One-Time Setup
  • Vehicle Battery
  • Indicator Lights