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Hydraulic drum brakes offer more powerful, controlled, and smoother braking compared to electric brakes. 10" x 2-1/4" Marine-grade assemblies have a 4-bolt pattern. Fit 14" to 15" wheels.
Features:
Specs:
If you have a seasonal boat or a snowmobile trailer that's occassionally in lakes or on heavily treated salt roads, these are the brakes for you. The galvanized backing plates. stainless steel springs, and zinc-plated wheel cylinder all provide excellent rust and corrosion resistance so your trailer will be ready to tackle the season.
Pro Tip: If your trailer is near saltwater year-round, you may want to look into the increasing levels of corrosion protection that e-coat, Dacromet, and stainless steel components can provide.
If you often find yourself making hard and frequent stops, these brakes may be for you. The semi-metallic brake pads in these Demco brakes are built to last longer and produce less dust than organic brake pads. They're also bolstered to the brake shoes with rivets, which makes the pads less likely to crumble or warp over the course of their lifetime.
The more miles you put on your trailer, the more your brake pads will wear down. As they lose contact with the drum, stopping distances get longer and longer. To keep your brakes working great, it's important to adjust them pretty routinely. For this job, grab a floor jack and either a brake adjustment tool (sold separately) or just a standard flathead screwdriver.
Jack up your trailer enough to get the wheel(s) off the ground. Remove the adjuster plugs from the backing plate on the brake, and insert the flat end of the tool through the back of the assembly.
Push in on the star gear and lift it up. Keep doing this until the brake pads catch on your brake drum. When you can't spin your wheel by hand anymore, back the gear off by about 10 clicks (push down on the star gear). Does the wheel now spin freely (even if it sounds like the brake pads drag slightly on the drum)? Great! Then you're all done with that one and ready to adjust the rest.
Once you get these assemblies installed, and your lines flushed with fresh fluid, you'll need to break in these brakes. First, find a long stretch of road or a big, empty parking lot. Speed up to about 40 mph and brake to slow to about 20 mph. Repeat this 15-30 times. The goal is to get the brake shoes properly seated into your drum. You'll know you've done that when it feels less jerky (and more consistent) each time you apply the brakes.
Note: The brakes will be very hot after doing this, so after every 10 stops you'll want to wait about 10 minutes to let the brakes cool off before continuing. If you don't, you might cook and crack the pad material.
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Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.
Hello everybody, this is Jeff at etrailer.com. Today we're gonna take a look at the Demco 10" Left Hand and Right Hand Galvanized Hydraulic Drum Brake Assemblies for 3,500 pound axles. Now these are galvanized marine grade hydraulic drum brake assemblies, great for boat trailers, and they are designed for use with surge type trailer brake actuators. They offer sturdy, corrosion resistant steel construction. As we've mentioned, they have the galvanized backing plate, does use the stainless steel spring hardware and in a zinc plated wheel cylinder. So all those features help when it's used in a marine application.
Now this is a single servo design, and what we mean by that is if you notice on the wheel cylinder, there's only one plunger here and that applies pressure to one shoe so it delivers less braking when you go into reverse, only does give you about 15 to 20% braking, and that'll help when you're backing up your trailer 'cause it won't apply the brakes all the way. They do use riveted brake shoes, which will provide increased durability, and they are manual adjustment brakes, so they will require a manual adjustment down here on the adjustment wheel. When your brakes start wearing down, you just have to adjust them out a little bit to get better braking. Now the mounting flange bolt pattern, if you see it's four holes, four on four inch pattern, it's designed to mount to a four bolt brake flange. Now the mounting bolts to install this is not included.
These parts are made in the USA. A few specs again, these are rated for axles up to 3,500 pounds. The configuration, here's your left hand driver's side, right hand passenger side, and if you wanna know how to tell the difference, which direction they go on, of course, when you get a new assembly, they'll have a sticker on 'em. They'll usually say right or left. In this case, you can see it has an L for left, but if the sticker wasn't there, the easiest way to tell is you'll look at the length of the pad that's on the shoe.
So the pad on this right shoe goes from here to here. This one all the way from here to here, that's a longer pad, shorter pad, the shorter pad is your primary shoe, and the primary shoe always faces the front of the trailer. So that's gonna go this way. So that's telling you that this is a left hand side. And the same one, this one, here's the shorter shoe, here's the longer shoe, points towards the front, so it tells you that's the right hand passenger side assembly.
Dimensions, we call these a 10" by 2-1/4" and what those dimensions mean, the 10 is the diameter. If we measure the diameter of the brake shoes one into the other, measure 10" and then the 2-1/4" is the width on the pad itself. Measure 2-1/4" measurement. Now this does accept wheel sizes from 14" up to 15". But that's gonna do it for the review on the Demco 10" Left Hand, Right Hand Galvanized Hydraulic Brake Assemblies for 3,500 pound axles.
Average Customer Rating: 4.7 out of 5 stars (39 Customer Reviews)
Hydraulic drum brakes offer more powerful, controlled, and smoother braking compared to electric brakes. 10" x 2-1/4" Marine-grade assemblies have a 4-bolt pattern. Fit 14" to 15" wheels.
as always great service, thanks
good quality
Very easy to make the correct selections. Delivery updates make the whole process painless.
You guys are great very helpful order came in very fast parts beautiful so far so good will definitely recommend you to all my friends awesome job
Very good service and fast delivery
I got the product I needed faster than I thought. Great place to get all your trailer parts!!
Well they last about two to three years max in saltwater even with fresh water wash down. The pads last just fine and braking performance is great. Wish they hardware and other components were more corrosive resistant.
I did have a question. I ordered the setup for 6-7k axel but I found out my boat setup is probably closer to 4K. The surge controller said it was a 6.6k surge controller and that’s why I went with the heavier brake set up.
Will this be an issue at all as long as they fit? Or do I need to send them back for the smaller weight class.
I ordered the wrong set of brakes for my trailer and etrailer exchanged them without any issue. The second set fit my boat trailer perfectly and has worked great for the year.
Affordable option for my 1999 triple axle boat trailer rebuild. Out of country manufacturing quality is less than more expensive options.
Delivered with left side plunger clevis laying g in bottom of box, had to reassemble. Missing grease seals I ordered but etrailer was good about it and sent me another pair. Things happen and I still recommend them.
Awesome! Fully pre assembled. Just bolt on and go
Perfect replacement on my 3500lb axle boat trailer, 1996 Trailrite. Brakes bolted right up. Galvanized finish was complete, and well done. These assemblies appear as if they will last for many many years over the original factory brakes. Outstanding price point. Wanted to go to electric disk, however I'm very happy with these replacement brakes, and for the price and stopping power I'm very happy. I highly recommend. Shipping time was rapid, and FREE. With the help of a friend, replacing these brakes, actuator, and bleeding the system was about 3 hours work. Well worth it!
I'm not sure what happened when you guys were packing this order, I received two right side brake kit's (the correct parts), and two right side free-backing brake kits! Now, I can use a standard and a free backing kit per side of the trailer, but my trailer doesn't have 4 right side wheels. It only has two on each side.
Unfortunately, I'm in a time crunch and can't afford to wait for 2 way return shipping, so I bought two left handed wheel cylinders locally, and swapped the hardware on 1 standard and 1 free-backing kit. I guess I'll put the free backing kits on the rear axle, and the standard kits on the front axle.
I'm curious though, Do you guys get alot of folks using trailers with 4 right side wheels?
I kinda don't know what to do with the poor/average/excellent stars thing. On one hand, you guys were super fast and quality seems good, but on the other hand, my trailer has wheels on both sides.
Brooke M.
5/23/2024
I cant say that we do, Ken! I am so sorry that we sent the wrong brakes! I also want to mention mixing free backing and standard breaks will cause the breaking to be uneven and is dangerous! I am going to look into this for you and see what we can do to make it right.
I needed brakes shoes, bearings, seals, piston and drums i.e. a complete rebuild on my boat trailer. I called etrailer to place the order. I was lucky enough to get Stacy to assist in getting everything I needed. Stacy was not only very knowledgeable but also enjoyable to work with. She was also patient with me as I had to put her on hold to get more information that I forgot to get before the call. She double checked all my needed items before placing the order.. She even took a minute for some small talk as we waited for the order to log. I've not had customer service like this in quite some time. After the order was placed, i realized that I made another measurement error and had to change the order.
I called Stacy back and she updated the order and made the correction on the amount I owed... I actually saved a few bucks.
Once again etrailer has customer service like no other online company I've done business with.
Great job Stacy...
Mike
A little mixup in the order but etrailer customer service was all over it and made things right. Parts were of good quality. I will use etrailer again.
I was very pleased.
Installed on our boat trailer, fit was excellent and worked great last year. Have yet to tow the boat but will shortly and expect the same great operation, I wish they were self adjusting but plan on making any adjustments prior to vacation. Great service as always from etrailer.
Direct fit. Easy installation. Works as advertised.
As advertised
easy installation, all products worked together. very happy with etrailer!
Fast shipping and excellent fitment. No issues towing the boat cross country after replacement.
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Christopher
10/3/2024
It has been a full year and many miles of trailering my boat and the brakes still work great. I have manually tightened them twice so I know they are taking wear and tear of of my truck brakes.