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Demco Hydraulic Drum Brake Assembly - Single Servo - Galvanized - 12" - Left Hand - 7,000 lbs

Demco Hydraulic Drum Brake Assembly - Single Servo - Galvanized - 12" - Left Hand - 7,000 lbs

Item # 23511

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Accessories and Parts 23511 - Single Servo - Demco
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  • Trailer Brakes
  • Hydraulic Drum Brakes
  • Brake Assembly
  • Demco
  • 12 x 2 Inch Drum
  • LH
  • Single Servo
  • 7000 lbs
Driver's-side hydraulic trailer brake assembly features a single-plunger design. Galvanized steel resists rust, making the assembly great for boat trailers. Mounting flange has 5-bolt pattern. Call 800-298-8924 to order Demco accessories and parts part number 23511 or order online at etrailer.com. Free expert support on all Demco products. Guaranteed Lowest Price and Fastest Shipping for Demco Hydraulic Drum Brake Assembly - Single Servo - Galvanized - 12" - Left Hand - 7,000 lbs. Accessories and Parts reviews from real customers.


  • All Info
  • Reviews (18)
  • Q & A (4)
  • Videos (1)
  • Photos
  • Why etrailer?

Demco Accessories and Parts - 23511

Driver's-side hydraulic trailer brake assembly features a single-plunger design. Galvanized steel resists rust, making the assembly great for boat trailers. Mounting flange has 5-bolt pattern.


Features:

  • Marine-grade hydraulic drum brake assembly is great for boat trailers
    • Designed for use with surge-type trailer brake actuators
  • Sturdy, corrosion-resistant steel construction
    • Galvanized backing plate
    • Stainless steel spring hardware
    • Zinc-plated wheel cylinder
  • Single-plunger design delivers 15 - 20 percent braking in reverse
  • Riveted brake shoes provide increased durability
  • Periodic manual adjustment required
  • Mounting bolts sold separately


Specs:

  • Configuration: left hand (driver's side)
  • Dimensions: 12" diameter x 2" thick
  • Mounting flange bolt pattern: 5 on 3-7/8"
  • Wheel size: 14-1/2", 15", and 16"
  • Axle rating: up to 7,000 lbs
  • 1-Year warranty


SB23511M Demco Galvanized 12" Marine Trailer Brake Assembly - Single Servo - Left Hand





This Product Fits The Following Vehicles

2019 - 2019 Eclipse Iconic 5W Toy Hauler 2814SG

2016 - 2017 Forest River Cedar Creek Fifth Wheel 34RE

2015 - 2016 Forest River Cedar Creek Fifth Wheel 34RL

2017 - 2017 Forest River Cedar Creek Fifth Wheel 34RL2

2018 - 2018 Eclipse Iconic 5W Toy Hauler 3518IKG

2017 - 2018 Forest River Cedar Creek Silverback Fifth Wheel 35IK

2010 - 2011 Forest River Cedar Creek Silverback Fifth Wheel 35K

2015 - 2015 Forest River Cedar Creek Silverback Fifth Wheel 35QB4

2013 - 2013 Forest River Cedar Creek Fifth Wheel 36B4

2017 - 2017 Forest River Cedar Creek Fifth Wheel 36CK2

2013 - 2016 Forest River Cedar Creek Fifth Wheel 36CKTS

2013 - 2013 Forest River Cedar Creek Fifth Wheel 36MDX

2013 - 2013 Forest River Cedar Creek Fifth Wheel 36RE

2015 - 2016 Forest River Cedar Creek Silverback Fifth Wheel 37BH

2018 - 2019 Forest River Cedar Creek Silverback Fifth Wheel 37FLK

2016 - 2019 Forest River Cedar Creek Silverback Fifth Wheel 37MBH

2016 - 2018 Forest River Cedar Creek Silverback Fifth Wheel 37RL

2014 - 2016 Forest River Cedar Creek Fifth Wheel 38CK

2017 - 2017 Forest River Cedar Creek Fifth Wheel 38CK2

2016 - 2016 Forest River Cedar Creek Champagne Fifth Wheel 38EL

2015 - 2016 Forest River Cedar Creek Fifth Wheel 38FB2

2017 - 2017 Forest River Cedar Creek Fifth Wheel 38FBD

2013 - 2015 Forest River Cedar Creek Fifth Wheel 38FL

2015 - 2015 Forest River Cedar Creek Fifth Wheel 38RD

2014 - 2014 Forest River Cedar Creek Fifth Wheel 38RE




Video of Demco Hydraulic Drum Brake Assembly - Single Servo - Galvanized - 12" - Left Hand - 7,000 lbs


Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.




Video Transcript for Demco Trailer Brakes 23511 Review

Today we're going to take a look at the Demco Galvanized 12 Inch Marine Brake Assembly, part number 23511. This is a 12x2 galvanized hydraulic brake assembly. It's referred to as a 12x2 due to its dimensions which is from here to here is 12 inches and the width of the break shoe is two inches.It has galvanized backing plates, stainless steel spring hardware plated wheel cylinders, riveted marine brake shoes and this also works great on non-marine applications as well. It has a weight capacity of 6,000 pounds per pair or obviously 3,000 pounds for each assembly. This fits on your left hand side of your trailer, the driver's side. It says the word "left" right here but another way to tell is the short shoe always faces to the front of the trailer.It is a single servo which means it has a single plunger coming from the wheel cylinder.

It uses 12 inch hub and drums with wheel sizes of 14-1/2 inches to 16 inches. The mounting bolts are sold separately and this item does require a periodic manual adjusting. What that means is that you can see right here it has rubber plugs that fit over the adjustment holes. Whenever its time to adjust you just pop these out and make your adjustments through there.That should do it for our Demco Galvanized 12 Inch Marine Brake Assembly, part number 23511.


Customer Reviews

Demco Hydraulic Drum Brake Assembly - Single Servo - Galvanized - 12" - Left Hand - 7,000 lbs - 23511

Average Customer Rating:  5.0 out of 5 stars   (18 Customer Reviews)

Driver's-side hydraulic trailer brake assembly features a single-plunger design. Galvanized steel resists rust, making the assembly great for boat trailers. Mounting flange has 5-bolt pattern.

- 23511
by:

Great stuff 373301



- 23511
by:

One Year Follow-Up - This was an extremely simple and cost effective option to repair my trailer brakes. One side had been contaminated by a leaky grease seal, but I replaced the brake assemblies, seals, bearings, and races on both sides of my single axle fresh water boat trailer at the same time. I estimate about 3000 miles on this trailer since installed and everything is still working great. 302620



- 23511
by:

The Drum Brake Assembly was extremely great. The backing plate and the cylinder are plated so they will not rust or corrode. The springs are stainless steel so they will not corrode. They fit on my axle very good. I had no problem with them. They work just like when the trailer was new. 295581



- 23511
by:

Great price, and was easy to install. Looking forward to many safe stops. The demo videos were most helpful. 256173



- 23511
by:

Great experience. Installation video and customer service was very good. 250415



- 23511
by:

Replaced 23 year old brake assembly with this and it was a perfect fit. All of the components were installed on the assembly as described - just bolt on, attach brake line,bleed and go. 219155



- 23511
by:

These are excellent. 193339



- 23511
by:

items as described,quality parts, bolted right up.. great price, fast shipping.. thankxs etrailer 138439



- 23511
by:

Perfect fit for my trailer axle and hub. Quality construction and easily a match for parts I purchased the week prior costing quite a bit more. Buy with confidence. 126481



- 23510
by:

Review from a similar Demco Demco Single Servo 12 Inch in Accessories and Parts


Good stuff 373369



- 23510
by:

Review from a similar Demco Demco Single Servo 12 Inch in Accessories and Parts


One Year Follow-Up - This was an extremely simple and cost effective option to repair my trailer brakes. One side had been contaminated by a leaky grease seal, but I replaced the brake assemblies, seals, bearings, and races on both sides of my single axle fresh water boat trailer at the same time. I estimate about 3000 miles on this trailer since installed and everything is still working great. 302618



- 23510
by:

Review from a similar Demco Demco Single Servo 12 Inch in Accessories and Parts


The Drum Brake Assembly was extremely great. The backing plate and the cylinder are plated so they will not rust or corrode. The springs are stainless steel so they will not corrode. They fit on my axle very good. I had no problem with them. They work just like when the trailer was new. 294828



- 23510
by:

Review from a similar Demco Demco Single Servo 12 Inch in Accessories and Parts


Excellent product 193340



- 23510
by:

Review from a similar Demco Demco Single Servo 12 Inch in Accessories and Parts


very fast service and delivery 186225



- 23510
by:

Review from a similar Demco Demco Single Servo 12 Inch in Accessories and Parts


I appreciate the speedy delivery. 179453



- 23510
by:

Review from a similar Demco Demco Single Servo 12 Inch in Accessories and Parts


I had no idea that I could purchase an entire brake assembly - ready to bolt on! The local trailer dealers wanted $98 per wheel, just for the shoe lining alone. I saved over 60% and got all new parts. Put them on today, bled the brake lines, and went to pick up a skidsteer loader. Everything works perfectly. I will not buy trailer parts anywhere else from now on. Dan 157676



- 23510
by:

Review from a similar Demco Demco Single Servo 12 Inch in Accessories and Parts


Perfect fit for my trailer axle and hub. Easily a match for a product I bought previously and costing a good bit more. Buy with confidence. 126482



- 23510
by:

Review from a similar Demco Demco Single Servo 12 Inch in Accessories and Parts


It was a great experience shopping on etrailers.com They had everything I needed and checkout was fast and easy. I had my parts in 2 days. Thanks etrailer.com 118101


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18

Ask the Experts about this Demco Accessories and Parts
Do you have a question about this Accessories and Part?


  • Recommended Replacement Axles For Tandem Axle Boat Trailer
  • As long as the frame itself can handle the additional weight, you would need to upgrade all of the other components under that weight capacity including the coupler. I recommend using the Timbren Axle-Less Suspension - Spindle Only - Regular Tires - 5200 lbs # ASR5200S01. This will allow your to simply remove the existing suspension and axles and add a cross beam or add a piece of 2x3 inch tubing between the axles in the integrated holes. With these spindles, you can use the Trailer...
    view full answer...

  • Correct Hydraulic Brake Assembly for Dexter 8-201 Hub/Drum
  • The Dexter 8-201 is a common 12 x 2 inch hub/drum used on 5,200 or 6,000 lb capacity axles. The 23-324 left hand hydraulic brake assembly you mentioned would certainly be compatible. You would also need the right hand assembly, part # 23-325. For a marine application, I would recommend the Demco 12x2 Marine Hydraulic Brake Assembly, part # 23510 for the right side, and # 23511 for the left. These brake assemblies feature galvanized backing plates and stainless steel spring hardware.
    view full answer...

  • How To Check if Trailer Surge Brakes Are Working Properly On Tandem Axle Boat Trailer
  • Checking the brakes can be done in two ways. The easiest way is to raise one side of the trailer and spin the wheels while someone applies the surge brakes at the coupler. The better way would be to remove each of the wheels and brake drums and activate the brakes while making sure the wheel cylinders and brake assemblies are functioning properly. After this the first thing I would do is bleed the brakes using the trailers surge coupler to force the fluid from the brake lines and make...
    view full answer...

  • Why Do Demco Hydraulic Brake Assemblies Have Brake Linings Riveted to the Brake Shoes
  • Riveting the linings on brake shoes on hydraulic brake assemblies was historically the industry standard, while electric brake assemblies typically have the pads glued or bonded into place. All Demco could tell me is that they rivet all of their brake linings. I also spoke with folks at Dexter. I was told that in the past the adhesives used to bond the linings on the shoes were unable to withstand harsh marine environments. If water should penetrate between the shoe and the lining, rust...
    view full answer...


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Info for this part was:

Photos by:
Jackie C
Expert Research:
Michael L
Updated by:
Lindsey S
Updated by:
Laura H

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