That’s when a malfunctioning actuator really gets your attention. Surge-brake actuators are integrated with trailer couplers, and the working parts are enclosed in a metal housing. Most use an ...

New rules took effect in April legalizing the use of automatic hydraulic inertia brake systems (surge brakes) on light- and medium-duty trailers within certain limits, even in commercial applications.

Virtually all recreational trailers and boats use either hydraulic surge brakes or electric brakes. Regardless of system, the end result is a pressurized application of one material (the pad or ...