This surge actuator lets your boat trailer's disc brakes work without wiring or a brake controller, so nothing electrical sits in the water. It also includes a solenoid so you can back up your trailer without engaging the brakes.
This Demco DA86 actuator is built for life at the boat ramp. Its zinc-plated body resists corrosion when exposed to saltwater, and the master cylinder is sealed with a diaphragm cap and a booted push rod to keep moisture out, so you can use it in coastal or brackish water environments.
The EZ Latch coupler drops onto a 2" hitch ball and clicks shut on its own, even if the latch is already closed. You don't need to hold the handle while you work the jack or line up the ball. That keeps fingers out of the pinch zone and makes it faster to hook up by yourself. After it clicks, give it a firm tug to confirm the catch, then add a coupler lock (sold separately) to help deter theft while you're away.
The color coded decal on the emergency lever shows red when the breakaway is engaged and green when it's released, so you can spot a tripped system before you tow. Bear in mind, this isn't a parking brake. If you're on a slope, use wheel chocks and your truck's parking brake to keep your trailer from rolling.
Inside the actuator, a spring-loaded push rod controls line pressure while an integrated dampener reduces impact shock. That gives you more predictable braking even when your load shifts or weight fluctuates.
The electric reverse lockout ties into the tow vehicle reverse light circuit. When you shift into reverse, the solenoid blocks brake pressure so you can back up without the brakes engaging. If wiring is not available, use the manual lockout tab as a backup.
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Well made, and rugged. Was skeptical about the ball hitch just dropping on and securing to the trailer ball but works great. Installation was easy. Mounting holes aligned perfectly. I did have to drill two holes for the two cable attachments but went smoothly. However, the only complaint would be that the Grade 8 mounting bolts were not supplied. Would still highly recommend this actuator for towing a #5k+ load.
Exactly what I needed. Just bolt on and fill with DOT 3
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