This surge actuator uses your trailers forward momentum to automatically apply your drum brakes, so theres no wiring or brake controller needed. With a durable zinc-plated finish, its a dependable choice for boat trailers and other marine use.
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 composite master cylinder features a glass-reinforced nylon body, a large reservoir for added fluid capacity, and an automotive style diaphragm cap that encloses the system to keep contaminants out.
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 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.
Customer Satisfaction Score:
92% were satisfied with this product
8% of customers were not satisfied
Ratings & Reviews
Exactly what I needed. Just bolt on and fill with DOT 3
Very well made .Not installed yet.cant wait.
So far it is great. Easy to install.
48 hours from an order late at night to delivery half way across the US. WOW!!!
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.
Very nice quality product but I screwed up and ordered the wrong part. Kevin H handled my problem quickly to return my mistake!! Thanks Kevin!!
So far it looks very well made robust and you can feed confident that will perform as described I just installed it on my dual axle trailer and it looks good and I am still in the process of making the brake lines and will try it and will write another review to tell you how it performed and the price is very very reasonable for a product that well made
Great replacement, works perfect!
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