Brakemaster for Coaches with Hydraulic Brakes

Catalog Item # 18515 Members Only Special

Shorten your stopping distance!

BrakeMaster is Roadmaster's 'direct' proportional braking system. It connects directly to the motorhome’s air or hydraulic brake system for rock-solid, reliable braking — brake line pressure in the motorhome controls the brakes in the towed vehicle. Because it connects directly to what powers your motorhome’s brakes, BrakeMaster is a truly proportional, truly synchronized braking system — however you brake the motorhome, BrakeMaster automatically applies the same pressure. Every time.


  • Connects and disconnects from the towed vehicle in under a minute, without any tools, adjustments or settings — attach the brake pedal clamp, secure to the floor or the seat adaptor, quick-connect the air hose and you’re ready to tow.

  • Weighs just 3.75 pounds and measures 17 inches in length — stores almost anywhere.

  • Works in virtually any motorhome.

  • Works in virtually any towed vehicle with power brakes.

  • Easily disconnects from the brake pedal — from towed car to road car in seconds!

  • Includes a break away emergency braking system.

  • Meets U.S. and Canadian braking requirements .

Shorten your stopping distance.

BrakeMaster applies proportional braking pressure on all four wheels of your towed vehicle. Reduces stopping distance and wear on motorhome brakes. Increase control and safety. Helps prevent overheating on steep downgrades. Air cylinder attaches to towed vehicle's brake pedal. Works with ABS. Includes break away kit.

Will your motorhome and towed vehicle stop safely in an emergency?

The ability to stop quickly is essential for the safe operation of your motorhome and tow vehicle. Workhorse will void your chassis warranty if you tow more than 1,000 pounds without supplemental brakes; Ford stipulates 1,500 pounds. Check with your motor home manufacturer for their towing recommendations.

Are supplemental brakes required in your state or province?

According to the American Automobile Association, most states, plus many Canadian provinces, now require supplemental brakes if the towed weight exceeds 3,000 pounds. If you have questions regarding state, province or local laws, please consult with the appropriate government agency.

What makes the BrakeMaster system better...

  • Unlike most other systems, the BrakeMaster is a truly proportional braking system. As you brake harder, the towed car brakes respond in direct proportion.

  • The BrakeMaster brakes all four wheels of the towed car.

  • Works on vehicles with or without ABS brakes.

  • Easy hook-up in seconds.

  • Meets braking requirements for U.S. and Canada.

  • Monitoring system indicates proper performance and braking.

  • Works in virtually any motor home and towed vehicle (towed vehicle must have power brakes).

  • Backed by Roadmaster - the leading manufacturer of tow bars and towing systems. This item qualifies for Product Protection Plan coverage.

See Braking Weights Map document below.

Technical Specifications

38 lbs.

Camper's Choice Rating

Reviewer rating of 5 stars based on 4 reviews (5 Based on 4 Reviews)

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Worth the money

by Bruce – August 26, 2007
5 out of 5 stars

We had this installed when towing a '98 Honda. That got totaled and we only had to buy a second car kit for the replacement. W

Works well and is easy to use.

by Robert Campbell – February 27, 2009
5 out of 5 stars

I did not want to deal with a large braking unit like other Roadmaster and Blue Ox products. The brake cylinder attaches easily t

Brake System

by John Yots – May 21, 2007
5 out of 5 stars

Expensive but well worth it as it is easy to hook up and reliable. Use it to tow my Saturn. Good investment.

Brakemaster Brake System

by Gordon Irwin – November 16, 2006
5 out of 5 stars

Within 50 miles after installation I came over a hill and had to make a quick stop. Also knew from experience that it would be clo

by Tom – April 26, 2016
Does the vacuum in the power brake booster have to be depleted or not in order to work? I now have a Brake Buddy which requires pumping brake pedal 5 times in order to deplete the vacuum from the booster. My coach has air brakes; will the Brakemaster work?
Yes, vacuum in the towed vehicle's power brake booster must be depleted before attaching the Brakemaster to the pedal. Yes, the Brakemaster can be used with your coach, however you will want to use SKU#18516 which is for motorhomes with air brakes.
by Camping World – April 26, 2016
by Bill – September 24, 2015
No, an air compressor is not needed for this item. This hooks into your RV's hydraulic brakes.
by Camping World – September 25, 2015

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