1. Trailer Brakes
  2. Demco
  3. Hydraulic Drum Brakes
  4. 3500 lbs Axle
  5. 10 x 2-1/4 Inch Drum
  6. 14 Inch Wheel
  7. 14-1/2 Inch Wheel
  8. 15 Inch Wheel
Demco Hydraulic Brake Kit - Duo-Servo - Galvanized - 10" - Left/Right Hand Assemblies - 3.5K

Demco Hydraulic Brake Kit - Duo-Servo - Galvanized - 10" - Left/Right Hand Assemblies - 3.5K

Item # DMSB18794M-93M
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Our Price: $175.48
Trailer Brakes
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Shipping Weight: 19 lbs
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Demco Dual Servo Trailer Brakes - DMSB18794M-93M
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Driver's-side and passenger's-side hydraulic brakes feature a dual-plunger design. Galvanized steel resists rust, making the assemblies great for boat trailers. Mounting flanges have a 4-bolt pattern. Fit 14" to 15" wheels. Lowest Prices for the best trailer brakes from Demco. Demco Hydraulic Brake Kit - Duo-Servo - Galvanized - 10" - Left/Right Hand Assemblies - 3.5K part number DMSB18794M-93M can be ordered online at etrailer.com or call 800-298-1624 for expert service.
  • All Info
  • Reviews (10)
  • Q & A (5)
  • Photos
  • Why etrailer?

Demco Trailer Brakes - DMSB18794M-93M

  • Hydraulic Drum Brakes
  • 3500 lbs Axle
  • 10 x 2-1/4 Inch Drum
  • 14 Inch Wheel
  • 14-1/2 Inch Wheel
  • 15 Inch Wheel
  • Demco
  • Dual Servo
  • Brake Set

Driver's-side and passenger's-side hydraulic brakes feature a dual-plunger design. Galvanized steel resists rust, making the assemblies great for boat trailers. Mounting flanges have a 4-bolt pattern. Fit 14" to 15" wheels.


Features:

  • Marine-grade hydraulic drum brake assemblies are great for boat trailers
    • Designed for use with surge-type trailer brake actuators
  • Sturdy, corrosion-resistant steel construction
    • Galvanized backing plates
    • Stainless steel spring hardware
    • Zinc-plated wheel cylinders
  • Dual-plunger design delivers same amount of braking when driving either forward or in reverse
  • Riveted brake shoes provide increased durability
  • Periodic manual adjustment required
  • Adjuster plugs (included) cover access holes to keep dirt and grime out of the assemblies and off of the shoes
  • Left-hand (driver's-side) brake assembly and right-hand (passenger's-side) brake assembly included
    • Mounting bolts and hardware sold separately
  • Made in the USA


Specs:

  • Dimensions: 10" diameter x 2-1/4" wide
  • Mounting flange bolt pattern: 4 bolt
  • Wheel size: 14" or 15"
  • Axle rating: up to 3,500 lbs
  • 1-Year warranty


SB18794M Demco Galvanized 10" Marine Trailer Brake Assembly - Duo Servo - Left Hand

SB18793M Demco Galvanized 10" Marine Trailer Brake Assembly - Duo Servo - Right Hand




California residents: click here



Customer Reviews

Demco Hydraulic Brake Kit - Duo-Servo - Galvanized - 10" - Left/Right Hand Assemblies - 3.5K - DMSB18794M-93M

Average Customer Rating:  4.9 out of 5 stars   (10 Customer Reviews)

Driver's-side and passenger's-side hydraulic brakes feature a dual-plunger design. Galvanized steel resists rust, making the assemblies great for boat trailers. Mounting flanges have a 4-bolt pattern. Fit 14" to 15" wheels.

- DMSB18794M-93M
by:

This brake kit is a worthwhile upgrade from base units. Besides the galvanized coating on the base plate, the stainless steel springs offer extra confidence against failure. The double acting actuator should give better braking action particularly when operated by the rather minimal surge system fluid displacement.



- DMSB18794M-93M
by:

I bought a horse and carriage business and needed to find parts and you guys had what we needed and got us up and running again . Tried several places local and nobody carried these and never even tried to help as soon as they found out they were for a carriage. Service was prompt and definitely will use you again and recommend you



- DMSB18794M-93M
by:



- DMSB18794M-93M
by:

good quality



- DMSB18794M-93M
by:



- DMSB18794M-93M
by:

let me start by saying to etrailer, you have a keeper in Sheila C. , friendly and very helpful, last but not least was the super fast delivery, received my order way ahead of schedule. Thank you Sheila. Lonnie S.


Comments
working fine, big plus addition to my boat trailer
Lonnie S - 12/20/2018



- DMSB18794M-93M
by:



- DMSB18794M-93M
by:

Nice brakes. Just what I needed for my boat trailer.



- DMSB18794M-93M
by:

Really easy to work with and my order arrived 2 days ahead of its scheduled delivery date



- DMSB18794M-93M
by:

FAST SHIPPING AND GOOD PRODUCT FOR THE PRICE


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Ask the Experts about this Demco Trailer Brakes

  • Are Drums Included with Demco Hydraulic Brake Kit for 3.5K Axles # DMSB18794M-93M
    No, the brake drums are sold separately from Demco Hydraulic Brake Kit # DMSB18794M-93M. The reason is that not everyone needs to replace both the brake assemblies and the drums. There are also at least 5 different bolt patterns for the hub and drum assemblies for 3500 pound axles. The most common bolt pattern is 5 on 4-1/2 so in that pattern for hydraulic brake drums you could use # T1543900CB042 which is sold in quantities of 1.
    view full answer...
  • Recommended Replacement Drum Brakes for Boat Trailer with 3500-lbs Axles
    I recommend using the Hydraulic Brake Kit - Uni-Servo - Free Backing - Dacromet - 10" - Left/Right Hand - 3,500 lbs # AKFBBRK-35-D, which will work with your current setup and are perfect because the Dacromet plating is designed to withstand exposure to water; so they're ideal for boat trailers. These brakes are free backing, so they'll allow your trailer to backup regardless of whether or not you've got a lockout feature on your actuator, and they'll work with a breakaway kit. If you've...
    view full answer...
  • Comparing Free Backing and Duo Servo Hydraulic Brake Assemblies
    Good questions. The difference between free backing brakes like the # AKFBBRK-35-D and regular hydraulic drum brakes like # DMSB18794M-93M (referred to as duo or duel servo) is that the wheel brake cylinder has pistons on both sides of the regular/duo servo brakes instead of just the one side on the single servo free backing assemblies. The amount of braking doesn't change much between them, they just function differently yet under the same amount of hydraulic pressure. The duo servo...
    view full answer...
  • How To Determine If Your Trailer Has Free-Backing Brake Assemblies When Replacing a Surge Coupler
    To find out if you have free backing brakes, there are really only two ways I can think of to test. First, if your coupler works, you can push your surge coupler to move your trailer in reverse. If the brakes apply, then you know you do not have free backing brakes. If you can move it easily, then your brakes are free backing. If your coupler is broken and thus the reason you are replacing then you will need to go to the second testing option. You will need to pull one of your hubs...
    view full answer...
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  • Can the Duo-Servo Demco Hydraulic Brake Kit Replace a Uni-Servo Dexter Hydraulic Trailer Brake Kit
    The Duo-Servo Demco Hydraulic Brake Kit # DMSB18794M-93M fits 10" hub and drum assemblies as well as the same mounting hole dimensions as the Uni-Servo Dexter Hydraulic Trailer Brake Kit # 23-312-313. This means that you definitely can replace them with the Duo-Servo kit. The Demco Duo-Servo kit is perfect if you have a boat trailer. The galvanized backing plates, stainless steel spring hardware, zinc-plated wheel cylinders will do a much better job at ressisting rust and corrosion from...
    view full answer...




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Info for this part was:

Employee Lindsey S
Edited by:
Lindsey S
Employee Michael H
Expert Research:
Michael H
Employee Sarah W
Updated by:
Sarah W
Employee Alexander C
Written by:
Alexander C

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