Item #751460


Product Description

Brake Light Switches are vehicle-specific. Visit Fitmaster to verify which kit is needed for your vehicle.

Why do you need a brake light switch? Brake light switches are necessary only if you’re installing a supplemental braking system monitor, and the vehicle’s OEM brake light switch doesn’t work when the vehicle is in ‘tow’ mode.

When installing a supplemental braking system, the RV driver should be able to monitor the braking activity of the dinghy. Roadmaster accomplishes this by monitoring the towed car's brake light switch. But in some vehicles, the brake light switch only functions while the car is running. The Universal Brake Light Switch solves this problem by adding a brake light switch that functions while towing.

The brake light switch is only activated when the brake pedal is depressed. No other manufacturer provides brake light switches with this level of specificity. If you know when the towed vehicle’s brake pedal is depressed and released, then you know if the supplemental braking system is positioned properly and working as it should.

Why do you need a brake light switch?

Roadmaster uses the brake light switch to connect InvisiBrake, BrakeMaster or an Even Brake motorhome monitor directly to the towed vehicle's brake light, so you always know when the brake pedal is depressed and released. It's simple — brake light on: monitor on; brake light off: monitor off. Although designed for Roadmaster braking systems, these brake light switches can be used to monitor the braking activity of any system that moves the brake pedal.

Other manufacturers' motorhome monitors are connected to the supplemental braking system. They can only tell you when the supplemental braking system is on or off. They cannot tell you if the towed car's brakes are on or off. If the braking system malfunctions or is installed incorrectly, you could be fooled into thinking your brakes are off when they are not.

That's an important distinction, and here's why: Say the braking system is positioned too far forward, so it's riding on the brake pedal. Every Roadmaster monitor will accurately indicate continuous braking, notifying you of a problem before you even drive away. But motorhome monitors that are connected to the supplemental braking system will have nothing to report. That would likely result in brake damage.

Brake Light Switch Solutions

Roadmaster brake light switches are vehicle specific. Each kit includes a mounting bracket and installation instructions for a specific application. Visit Fitmaster to verify that this is the correct switch for your vehicle. If we don't make a brake light switch for your vehicle, or if you prefer our a universal option, use the 751000 (pictured below.)

Roadmaster Brake Light Switches:

• Work with any supplemental braking system that moves the brake pedal
• Installs easily with 2 or 3 wires depending on application
• Can provide a brake signal to any motorhome monitor
• Mounts to the brake pedal arm under the dash


⚠ WARNING This product can expose you to chemicals including vinyl chloride, which is known to the State of California to cause cancer and birth defects or reproductive harm. For more information, go to

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