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Roadmaster Smart Diode Kit for Variable Voltage LED Tail Lights - 7-Way to 6-Way Adapter Cord

Our Price: $227.89
In Stock
Smart diodes are our favorite option for getting brake and turn signals on your towed car. They are really well-made and reliable, plus pretty easy to install. This complete kit includes everything ...
lights only, so if you have incandescent variable voltage lights, you'll need kit RM26FR (sold separately) instead. Do I Need a Brake Light Relay? If the engine is off and your car's brake lights
  • Diode Kit
  • Splices into Vehicle Wiring
  • 7 Blade to 6 Round
  • Roadmaster
  • Universal Fit

Roadmaster Smart Diode Kit for Variable Voltage LED Tail Lights

Retail: $162.01
Our Price: $144.74
In Stock
Smart diodes are our favorite option for getting brake and turn signals on your towed car. They are really well-made and reliable, plus pretty easy to install. This kit is for variable ...
need kit RO94FR (sold separately) instead. Do I Need a Brake Light Relay? If the engine is off and your car's brake lights illuminate when you press the brake pedal, you need to install a brake light
  • Diode Kit
  • Splices into Vehicle Wiring
  • Roadmaster
  • Universal Fit

Roadmaster Smart Diode Kit for Variable Voltage LED Tail Lights - 7-Way to 6-Way Adapter Cord

Our Price: $215.64
In Stock
Smart diodes are our favorite option for getting brake and turn signals on your towed car. They are really well-made and reliable, plus pretty easy to install. This complete kit includes everything ...
lights only, so if you have incandescent variable voltage lights, you'll need kit RM26FR (sold separately) instead. Do I Need a Brake Light Relay? If the engine is off and your car's brake lights
  • Diode Kit
  • Splices into Vehicle Wiring
  • 7 Blade to 6 Round
  • Roadmaster
  • Universal Fit

Roadmaster Smart Diode Kit for Variable Voltage LED Tail Lights

Our Price: $152.19
In Stock
Smart diodes are our favorite option for getting brake and turn signals on your towed car. They are really well-made and reliable, plus pretty easy to install. This kit is for variable ...
Features: Displays RV's brake and turn signals correctly on your towed car with variable voltage LED tail lights Converts the 12V signal from your RV to a 9V signal so your tail lights work as
  • Diode Kit
  • Splices into Vehicle Wiring
  • Roadmaster
  • Universal Fit

Roadmaster Smart Diode Kit for Variable Voltage Incandescent Tail Lights - 7-to-6-Way Adapter Cord

Our Price: $313.96
In Stock
Smart diodes are our favorite option for getting brake and turn signals on your towed car. They are really well-made and reliable, plus pretty easy to install. This complete kit includes everything ...
lights only, so if you have LED variable voltage lights, you'll need kit RM38FR (sold separately) instead. Do I Need a Brake Light Relay? If the engine is off and your car's brake lights illuminate
  • Diode Kit
  • Splices into Vehicle Wiring
  • 7 Blade to 6 Round
  • Roadmaster
  • Universal Fit

Roadmaster Smart Diode Kit for Variable Voltage Incandescent Tail Lights

Our Price: $142.07
In Stock
Smart diodes are our favorite option for getting brake and turn signals on your towed car. They are really well-made and reliable, plus pretty easy to install. This kit is for variable ...
LED Tail Lights? This kit is designed to work with incandescent lights only, so if you have LED variable voltage lights, you'll need kit RO44FR (sold separately) instead. Do I Need a Brake Light
  • Diode Kit
  • Splices into Vehicle Wiring
  • Roadmaster
  • Universal Fit

New Arrivals — From Our Shop to You!

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

New Arrivals — From Our Shop to You!

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

Andrew
Andrew etrailer team member
Andrew etrailer team member

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Installations

3,320

Customers Helped

Any questions? Chat us from Missouri

Roadmaster Universal Stop Light Switch Kit

Retail: $159.37
Our Price: $126.53
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 ...
beneath dash on brake pedal arm Connects with just 3 wires - power, ground, and brake light connection 12 Volts Made in the USA By tapping into your towed car's brake-light switch, this kit allows your
  • Stop Light Switch
  • Roadmaster

Trailer Mate Custom Tail Light Wiring Kit for Towed Vehicles

Our Price: $50.94
In Stock
Quickly and easily connect your towed car's lighting system to your RV to activate the signal lights required for towing. This custom harness plugs directly into your towed vehicle's existing ...
Features: Lets you connect your RV's tail, brake and turn signal lights to your towed vehicle's lighting system Provides 4-way flat plug at front of towed car to connect to motor home Plugs
  • Vehicle End Connector
  • Trailer Hitch Wiring
  • 4 Flat
  • Trailer Mate
  • Plug-In
  • No Tow Package
  • Powered Converter

Curt Custom Tail Light Wiring Kit for Towed Vehicles

Retail: $152.95
Our Price: $94.73
In Stock
Plug-and-play custom harness gets turn and brake signals on your towed car with no hardwiring or splicing, and no effect on your warranty. The built-in diodes protect your car from electrical ...
Brake Light Relay? If the engine is off and your car's brake lights illuminate when you press the brake pedal, you need to install a brake light relay (RM-88400 - sold separately) with this kit
  • Wiring Harness
  • Plugs into Vehicle Wiring
  • 4 Flat
  • CURT
  • Custom Fit

Demco 4-Diode Universal Tail Light Wiring Kit for Towed Vehicles - 7-Way to 6-Way Adapter Cord

Our Price: $228.14
In Stock
This complete kit includes everything you need to correctly display your RV's brake and turn signals on your vehicle tail lights. Includes coiled 7-way to 6-way adapter cable and 6-way car-side ...
brake pedal, you need to install a brake light relay (RM-88400 - sold separately) with this kit. Without a relay, your car's brake signal will override the turn signal sent by the RV when you are
  • Diode Kit
  • Splices into Vehicle Wiring
  • 7 Blade to 6 Round
  • Demco
  • Universal Fit

Hopkins Custom Tail Light Wiring Kit for Towed Vehicles

Retail: $127.99
Our Price: $73.46
In Stock
Plug-and-play custom harness gets turn and brake signals on your towed car with no hardwiring or splicing, and no effect on your warranty. The built-in diodes protect your car from electrical ...
car's brake lights illuminate when you press the brake pedal, you need to install a brake light relay (RM-88400 - sold separately) with this kit. Without a relay, your car's brake signal will override
  • Wiring Harness
  • Plugs into Vehicle Wiring
  • 4 Flat
  • Hopkins
  • Custom Fit

Blue Ox 4-Diode Universal Tail Light Wiring Kit for Towed Vehicles

Retail: $109.00
Our Price: $78.16
In Stock
This wiring kit carries brake and turn signals from your motorhome to your towed car while you're flat towing. Diodes protect your car from damage from electrical feedback.Features: Connects RV's brake and turn signal lights to towed car's tail lights Prevents feedback that can damage your vehicle's electrical components Includes: 26' 4-Wire harness 4
  • Diode Kit
  • Splices into Vehicle Wiring
  • Blue Ox
  • Universal Fit

Hopkins Custom Tail Light Wiring Kit for Towed Vehicles

Retail: $102.09
Our Price: $67.19
In Stock
Plug-and-play custom harness gets turn and brake signals on your towed car with no hardwiring or splicing, and no effect on your warranty. The built-in diodes protect your car from electrical ...
car's brake lights illuminate when you press the brake pedal, you need to install a brake light relay (RM-88400 - sold separately) with this kit. Without a relay, your car's brake signal will override
  • Wiring Harness
  • Plugs into Vehicle Wiring
  • 4 Flat
  • Hopkins
  • Custom Fit

Hopkins Custom Tail Light Wiring Kit for Towed Vehicles

Retail: $102.09
Our Price: $81.92
In Stock
Plug-and-play custom harness gets turn and brake signals on your towed car with no hardwiring or splicing, and no effect on your warranty. The built-in diodes protect your car from electrical ...
car's brake lights illuminate when you press the brake pedal, you need to install a brake light relay (RM-88400 - sold separately) with this kit. Without a relay, your car's brake signal will override
  • Wiring Harness
  • Plugs into Vehicle Wiring
  • 4 Flat
  • Hopkins
  • Custom Fit

Curt Custom Tail Light Wiring Kit for Towed Vehicles

Retail: $198.95
Our Price: $115.31
In Stock
Plug-and-play custom harness gets turn and brake signals on your towed car with no hardwiring or splicing, and no effect on your warranty. The built-in diodes protect your car from electrical ...
and your car's brake lights illuminate when you press the brake pedal, you need to install a brake light relay (RM-88400 - sold separately) with this kit. Without a relay, your car's brake
  • Wiring Harness
  • Plugs into Vehicle Wiring
  • 4 Flat
  • CURT
  • Custom Fit

Hopkins Custom Tail Light Wiring Kit for Towed Vehicles

Retail: $104.39
Our Price: $80.36
In Stock
Plug-and-play custom harness gets turn and brake signals on your towed car with no hardwiring or splicing, and no effect on your warranty. The built-in diodes protect your car from electrical ...
car's brake lights illuminate when you press the brake pedal, you need to install a brake light relay (RM-88400 - sold separately) with this kit. Without a relay, your car's brake signal will override
  • Wiring Harness
  • Plugs into Vehicle Wiring
  • 4 Flat
  • Hopkins
  • Custom Fit

Hopkins Custom Tail Light Wiring Kit for Towed Vehicles

Retail: $93.94
Our Price: $72.99
In Stock
Plug-and-play custom harness gets turn and brake signals on your towed car with no hardwiring or splicing, and no effect on your warranty. The built-in diodes protect your car from electrical ...
car's brake lights illuminate when you press the brake pedal, you need to install a brake light relay (RM-88400 - sold separately) with this kit. Without a relay, your car's brake signal will override
  • Wiring Harness
  • Plugs into Vehicle Wiring
  • 4 Flat
  • Hopkins
  • Custom Fit

Hopkins Custom Tail Light Wiring Kit for Towed Vehicles

Our Price: $59.42
In Stock
Plug-and-play custom harness gets turn and brake signals on your towed car with no hardwiring or splicing, and no effect on your warranty. The built-in diodes protect your car from electrical ...
car's brake lights illuminate when you press the brake pedal, you need to install a brake light relay (RM-88400 - sold separately) with this kit. Without a relay, your car's brake signal will override
  • Wiring Harness
  • Plugs into Vehicle Wiring
  • 4 Flat
  • Hopkins
  • Custom Fit

Hopkins Custom Tail Light Wiring Kit for Towed Vehicles

Retail: $113.49
Our Price: $77.48
In Stock
Plug-and-play custom harness gets turn and brake signals on your towed car with no hardwiring or splicing, and no effect on your warranty. The built-in diodes protect your car from electrical ...
car's brake lights illuminate when you press the brake pedal, you need to install a brake light relay (RM-88400 - sold separately) with this kit. Without a relay, your car's brake signal will override
  • Wiring Harness
  • Plugs into Vehicle Wiring
  • 4 Flat
  • Hopkins
  • Custom Fit

Hopkins Custom Tail Light Wiring Kit for Towed Vehicles

Retail: $102.09
Our Price: $74.03
In Stock
Plug-and-play custom harness gets turn and brake signals on your towed car with no hardwiring or splicing, and no effect on your warranty. The built-in diodes protect your car from electrical ...
car's brake lights illuminate when you press the brake pedal, you need to install a brake light relay (RM-88400 - sold separately) with this kit. Without a relay, your car's brake signal will override
  • Wiring Harness
  • Plugs into Vehicle Wiring
  • 4 Flat
  • Hopkins
  • Custom Fit

Hopkins Custom Tail Light Wiring Kit for Towed Vehicles

Retail: $102.09
Our Price: $76.18
In Stock
Plug-and-play custom harness gets turn and brake signals on your towed car with no hardwiring or splicing, and no effect on your warranty. The built-in diodes protect your car from electrical ...
car's brake lights illuminate when you press the brake pedal, you need to install a brake light relay (RM-88400 - sold separately) with this kit. Without a relay, your car's brake signal will override
  • Wiring Harness
  • Plugs into Vehicle Wiring
  • 4 Flat
  • Hopkins
  • Custom Fit

Hopkins Custom Tail Light Wiring Kit for Towed Vehicles

Retail: $120.91
Our Price: $82.95
In Stock
Plug-and-play custom harness gets turn and brake signals on your towed car with no hardwiring or splicing, and no effect on your warranty. The built-in diodes protect your car from electrical ...
car's brake lights illuminate when you press the brake pedal, you need to install a brake light relay (RM-88400 - sold separately) with this kit. Without a relay, your car's brake signal will override
  • Wiring Harness
  • Plugs into Vehicle Wiring
  • 4 Flat
  • Hopkins
  • Custom Fit

Hopkins Custom Tail Light Wiring Kit for Towed Vehicles

Retail: $107.02
Our Price: $68.51
In Stock
Plug-and-play custom harness gets turn and brake signals on your towed car with no hardwiring or splicing, and no effect on your warranty. The built-in diodes protect your car from electrical ...
car's brake lights illuminate when you press the brake pedal, you need to install a brake light relay (RM-88400 - sold separately) with this kit. Without a relay, your car's brake signal will override
  • Wiring Harness
  • Plugs into Vehicle Wiring
  • 4 Flat
  • Hopkins
  • Custom Fit

Hopkins Custom Tail Light Wiring Kit for Towed Vehicles

Retail: $107.09
Our Price: $80.83
In Stock
Plug-and-play custom harness gets turn and brake signals on your towed car with no hardwiring or splicing, and no effect on your warranty. The built-in diodes protect your car from electrical ...
car's brake lights illuminate when you press the brake pedal, you need to install a brake light relay (RM-88400 - sold separately) with this kit. Without a relay, your car's brake signal will override
  • Wiring Harness
  • Plugs into Vehicle Wiring
  • 4 Flat
  • Hopkins
  • Custom Fit