Demco Hydraulic Trailer Brake Actuator - Drum Brakes - Zinc Plated - 2" Ball - 6,000 lbs

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

The unit fit exactly like the original that it replaced. Working better than the 30 year old one.

Aaron - 04/26/2019

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

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Very helpful on the phone and everything ordered fit perfectly! Thanks for all the help. 545838

Very fast shipping and great price 565364

by: Jeffrey07/16/2018

This was a replacement for the no-longer-available actuator on my '78 trailer. I had it welded on instead of bolting it on; figuring replacement parts will be available for a long time for this actuator. It has worked flawlessly, and was a great value for the price. 542218

Will send pictures after installed 576678

Best 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

seems to work fine. had to extend my brake line about 3 inchs, not to big a deal. 134947

working fine

carl s - 06/12/2015

Installed it on Friday and hauled the boat around all weekend. Arrived at my doorstep sooner than expected without any issues. Etrailer gained another new and happy customer. I recommend them for all of your trailer needs. 149493

All i can say, that package was delivered very quick! And it was exactly as described in the website. I would totally recommend it to anyone! 384580

Hi, I haven't installed it yet, but the coupler looks like top quality stuff. I may have trouble with connecting to the break lines (rustyl/old and may need an adapter to go in-between), but that's my problem. Thanks! 327801

Very pleased with Coupler, I've not towed it yet, but am well pleased with the quality and price....I'll be a return customer...Thanks Freddie 141781

Works great...recommend this coupler to all...

Freddie M - 07/18/2015

Etrailer has great service, I ordered this on a Sunday and had it Wednesday. fit perfect I have ordered from them before and always had great service. To get a reply on Sunday that it was ready to be picked up by shipping company, that is service!!! 568964

Everything went as it was supposed to. Very satisfied! 575389

Product fit great 266398

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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

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

So far so good only issue was no paper work what so ever. No instructions and no warranty card, not even a packing slip. Took a bit to find installation instructions on line because I couldn’t get anyone to email me or call me back after I purchased. All installed and gave it a test run and so far so good. 512493

The trailer actuator actually arrived a day early which was excellent timing. The trailer actuator fit perfectly on the trailer and was a bit beefier than the one I had. After installation the unit worked perfectly. 575235

My brake actuator got to me pretty quick the price was great. And fairly easy install and hookup. There was no hardware to attach the line to the actuator but after $10-$15 at lowes I got all the stuff to make it work. Awesome product thabks guys. 140311

The piece came as quick as it could because it was ordered over the holidays. It was in good shape. I have to install it next week because it's snowing right now. I don't have to rush with any luck I should be ice fishing next week. 330617

I would like to say that your customer service department was very thorough in helping me sizing up the product to my trailer it lined right up with the original holes in the trailer still need to bleed the system before I can use my trailer thank you again for all the help I will let you know how it works after I get it on the road 243164

The item arrived ahead of promised delivery date. I will not be putting this on my trailer until the spring, but the master cylinder looks solid and I will post before and after down the road. 573192

Package arrived as expected. Was exactly what I ordered. Was installed within 1/2 hr. However the packaging lets a little to be desired. Otherwise I'm completely satisfied with my purchase . Will use etrailer for future purshses 266849

Bolted right on. No drilling and it looks good. 207705

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I recently ordered a master cylinder and two complete drum brake assemblies for my 1985 Mastercraft ski boat trailer. I received all of the items much quicker that I had expected. The master cylinder was pretty close to being an exact replacement for the 30+ year old assembly I had removed. The drum brake assemblies were exactly the same as the original units saving me a lot of time and money trying to find the parts I would have needed to rebuild the system. 403518

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

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I ordered this surge brake unit on Tuesday and received it on Thursday as was promised, great service and great to work with. I replaced another brand with this Demco it bolted wright to my trailer tongue and just had to adjust the brake line a small amount, put brake fluid in and blead the brakes,hooked to my truck and road tested and it worked great. The price was far less then one I could buy local.if in the future I need trailer part's I will buy them here also. 298137

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Thank you for contacting me about my purchase , the. Brake actutor works very well, it is the same brand as the original Actuator that lasted 15 years on my boat trailer. If I ever need more trailer parts I will consider ordering from etrailer.

Paul B - 10/17/2017

It was easy to install. I like the fact that it works like a standard coupler. This makes it easy to hook up to vehicle. Costomer service was helpful when ordering. it is nice to talk to a person when ordering from etrailer. Seems to work well when pulling my boat. 576467

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

James,Thank you for your review. I have contacted demco and there will always be some movement of the coupler body in the outer case. Typically the movement measures 14 approximately. There should not be any more slack than that.

-- Heather A - 01/12/2018

This 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

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Fast shipping, Love that. This replacement hitch is perfect. It bolts up to the same holes tat are in my trailer, I was pleasantly pleased with that. The hitch is several inches longer than the original and this Ranger boat trailer. The price was unmatched, nobody came close to it, not other sites. Now to bleed the breaks and hit the water, 496241

Deliver 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

Very well built. If you take the two bolts off on top that hold the plate on by the breakaway lever you can then use the lever to bleed the brakes. This was a relacement for a unit with a bad master cylinder. However i had to replace my bolts holding it on because its slightly wider due to double wall construction. Very happy with purchase. 241664

I had an older version of the hitch and it was beyond rebuilding. I ordered the new one and it arrived quickly. It was an exact replacement no issues with the install or bleeding the system, Oh and it was the best price I found on the net. any parts ordered in the future will come from etrailer.com. 397782

I have not had a chance to use the hitch, but it was simple to install, and easy to bleed by myself. Used it to replace an at least 20 year old atwood receiver, and this one replaced it easy as pie. Since I also got the Demco free-backing brake assemblies, I'll never have to get out to back up my trailer. Again though, have not had the chance to try them out, vacation was canceled. 147381

I am changing trailer brakes from electric (I never know if they are working or not) to surge brakes. After calling to get information that was not clear in the on the website I ordered and received the necessary parts. The technical help on the phone was helpful and and the order processed and received promptly. 340804

Stripping down a 16 year old 21 ft. salt water use trailer - from end to end. The folks @ etrailer were very knowledgeable, and helpful in my decision making. From placing the order, to tracking the order, to the way the items were packed for transit. Other distributors could learn from these people; in regards to customer service, following up, both office and warehouse. Unloaded the products last night, nothing short, all quality in regards to their products, with great pricing. The installation videos are a big bonus, and something I'll be taking advantage of, during the restoration. Will follow up with picture, (before and after) when I'm done 337542

by: Bob06/24/2019

Brake actuator works flawlessly.Thanks 662177

Service was terrific and product was exactly what was needed. 661922

BOLTS RIGHT ON TRAILER, EASY INSTALL 660791

Fast shipping great price. Will definitely do business again ! 660297

Excellent price cost 659209

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

by: Dustyn06/15/2019

Bolted hitch on my boat trailer with Grade 8 bolts and 2 pieces of thick wall round pipe inside the frame tubing for extra support, so the frame wouldn't cave in while bolts get torqued. Brakes bled flawlessly, and all works great. Good setup. 658306

Six Stars!! Your web site shows what patience and hard work does! Awesome !! I have now ordered all trailer brake components, hoses, lines everything for a complete job. Easy to find correct parts. Called and talked to Derek to make sure i was ordering the correct parts. Shipping and handling also was great. Now install. Thank You 657529

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Just what I needed to upgrade my boat trailer! Easy install fast shipping. Thank you! 656345

Perfect match. Easy install. Brake line needed some slight bending to match up but not an issue. Received product timely. 655567

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Functioned as advertised, but the glass reinforced nylon master cylinder threads leaked until the brass adapter fitting was nearly bottomed out. Your product video advised tightening it before hooking up brake line, and I did. Suggest you you package that adapter with a sealer applied to the threads. 655326

I'm glad I had a pneumatic bleed kit to troubleshoot because several lines were full of sludge. Had a little trouble getting the surge actuator primed. It is best on this unit to take the 2 bolts holding the emergency lockout and then pulling in this device to prime the unit. Made it easy. 654971