The Load Rite Demco Disc Brake Actuator is rated to 20,000 lb with a 2-5/16 inch zinc plated ball coupler on a 3 inch channel tongue.
A surge actuator brakes the trailer using the trailer’s own momentum. As the tow vehicle slows, the trailer pushes forward against the coupler and that movement applies the brakes proportionally. It needs no wiring to the vehicle and no controller in the cab, and it remains standard on boat trailers that get submerged for that.
Twenty thousand pounds is the heavy end of trailer capacity, suiting large boats and multi-axle trailers rather than a single-axle rig. Zinc plating over the coupler resists the corrosion that ramp water causes, and a 3 inch channel tongue matches heavy trailer frames rather than light ones. Explore more trailer brakes and actuators.
- Surge braking uses the trailer’s own momentum
- No wiring or in-cab controller needed
- 20,000 lb, for large multi-axle trailers
- 2-5/16 inch zinc plated coupler on a 3 inch tongue
