Surge-type actuator features a corrosion-resistant composite master cylinder and durable zinc plating with a 200-hour salt spray rating. Easy-to-use leverlock coupler fits 2" hitch balls.
Features:
Specs:
Note: Because this actuator does not include a reverse lockout, it is recommended that you equip your trailer with free-backing brakes so that you can drive in reverse without the actuator triggering your trailer's brakes.
When you apply the brakes in your tow vehicle, deceleration occurs and momentum pushes your trailer toward the rear of your vehicle. With surge brake systems, the hydraulic actuator is triggered as your trailer moves forward, once your tow vehicle starts to slow down. When this happens, the actuator contracts, applying force to its master cylinder. This in turn supplies the necessary hydraulic pressure to engage your trailer's brakes.
Sturdy, Corrosion-Resistant Construction
Made of sturdy steel, this hydraulic trailer brake actuator features a durable zinc coating that is designed to limit rust and corrosion. This zinc coat has a 200-hour salt spray rating. In addition, the composite master cylinder is made of corrosion-resistant, glass-reinforced nylon to further ensure durability.
Average Customer Rating: 4.8 out of 5 stars (329 Customer Reviews)
Surge-type actuator features a corrosion-resistant composite master cylinder and durable zinc plating with a 200-hour salt spray rating. Easy-to-use leverlock coupler fits 2" hitch balls.There is slop where coupler goes into the actuator box. When towing my 20' boat I can feel it bouncing up and down a bit after each bump. I'm considering changing out to different brand as I concerned it will round out the bolt holes and make the slop even worse. 465677
Heather A - 01/12/2018Exactly what I was looking for, perfect fit, great pricing! 665216
Travis G - 07/02/2020Deliver the Demco Hydraulic Trailer Brake Actuator - Drum Brakes - Zinc Plated - 2" Ball - 6,000 lbs - 8605001 to my mechanic, who is doing a complete overall to my trailer brake system. The product looks very good and was delivered as promised. Thanks, Russ 565180
Russ - 09/14/2019Best price on the internet for the whole assembly. I was going to rebuild my old one, but when I saw the price for a new replacement, I went with that. The quality is very good. No instructions came with it, but I found a video on the Etrailer site that showed me how to install the actuator and bleed the brake lines. Be sure to check the brass exit-fitting on the unit for tightness. Mine was very loose. The video does mention to do that. I'd suggest that Etrailer provide more packing when shipping these. Luckily there was no damage but the packing material was sparse. 177655
Highly recommend company! I am pleased with the direct fit of my new hitch. I took the measurements of the trailer tongue 3", bolt holes center to center 3". The hitch is rated for 6k and my pontoon boat and trailer come in at 4.4k. Nice product, heavy duty and much better than factory. Shipping was extremely fast, easy to track with etrailer email notifications. The customer email service is superior to many other companies. 541261
Product worked as designed, however; your companies staff person (Sal M) was extremely helpful with options and patients getting my order filled to my expectations and my timeframe. He represented what customer service is all about! Thank You Sal!! Robert Wallace 384207
Fit perfectly in existing spot. Once hooked up and brakes were bled, worked phenomenally. Would definitely recommend this to anyone needing a new surge brake actuator 613373
The new unit fit perfectly on my 1988 boat trailer. Installation couldn't have been easier - bolt holes lined up exactly. I watched an etrailer video demonstrating the install procedure, and by watching the video I realized that the anti-collapsing spacer tube which goes inside the trailer tongue tube was missing. I made two steel spacers and installed them inside the tongue when I installed the new brake actuator unit. I very happy I made this necessary upgrade. 501067
Aaron - 04/26/2019This was easy to install and works great; I installed it myself on my boat trailer in order to get the brakes to work. The boat is quite heavy (6k lbs) very happy with this product and would recommend. 108884
Demco surge brake actuator Demco brake cluster (2) Product shipped and was received within a couple of days. Finally warmed up enough to tackle this project. My tow-dolly is a 1998 so the job was a little different than the video shows. Had to wrench the bolts all the way out with a cheater ( think Loc-Tite ). Also needed a little help with a hammer to separate hub/spindle from backing plate. Went back together pretty well. New actuator went right into place. Great service. 351344
Installed today. Fit was good with 4-1/2" grade 8 bolts and flange nuts. Had blown out and used my existing brake lines as I was replacing the brakes also. Gravity bleed wasn't working for me, so I rigged up light air pressure from the compressor with the bleeders open to push the brake fluid through the lines. Then with a few times pumping the ball part of the hitch back and forth to the actuator and holding it in with a clamp as to bleed it like an auto brake, the air was bled out and the job was done. 658638
seems to work fine. had to extend my brake line about 3 inchs, not to big a deal. 134947
carl s - 06/12/2015EVERYTHING WENT WELL PERFECT REPLACEMENT THE ONLY THINK WAS THE ACCOUNT IS IN MY NAME ART, BUT SOMEHOW IT CAME ADDRESSED TO MY SON'S NAME. 893128
Very easy to install and bleed and it works great replaced a weld on one very easy 892415
Product is perfect and the customer service was even better! 883157
I started with new backing plates and brakes and new drums . Next I connected them with Kodiak rubber break lines and connected them to a Demco actuator. This completed the replacement of my non functioning break system . The entire process was fairly simple with the parts I was able to get from E trailer 881278
Great price, and nice installation video. Vert pleased with this product. 875423
Great replacement for my worn out original. Easy installation. I’ve had it on my dolly for a year now and still looks new even after being stored outside. 874615
We will see how long it lasts as the reservoir is maxe of plastic. 874407
Heather A - 09/25/2020Works great! perfect replacement and fit. no issues 873129
Fits and works exactly as described. Easy install. 872975
They were very helpful with orders and I was happy with how fast it was delivered 871383
looks good have not got it all hooked up yet 870006
Works great. Brakes now work as design ed. 869659
Great brake actuator. Working great, still pleased with operation. 868943
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