Passenger's-side hydraulic trailer brake assembly features a single-plunger design. Mounting flange has 4-bolt pattern. Lowest Prices for the best trailer brakes from Dexter. Dexter Hydraulic Drum Brake Assembly - Single Servo - 10" - Right Hand - 3,500 lbs part number 23-313 can be ordered online at or call 800-298-8924 for expert service.
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Trailer Brakes > Hydraulic Drum Brakes > Brake Assemblies > 10 x 2-1/4 Inch > 3500 lbs Axle > Right Hand Side > Single Servo > Dexter

Dexter Hydraulic Drum Brake Assembly - Single Servo - 10" - Right Hand - 3,500 lbs

Dexter Trailer Brakes

(2 reviews)

Code:   23-313



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Shipping Weight: 9 pounds


Dexter Trailer Brakes - 23-313

Passenger's-side hydraulic trailer brake assembly features a single-plunger design. Mounting flange has 4-bolt pattern.


  • Hydraulic drum brake assembly is designed for use with surge-type trailer brake actuators
  • Single-plunger design
  • Mounting studs included


  • Configuration: right hand (passenger's side)
  • Dimensions: 10" diameter x 2-1/4" thick
  • Mounting flange: 4 bolt
  • Axle rating: up to 3,500 lbs

23-313 10" x 2-1/4" Hydraulic Brake Assembly - RH

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Video of Dexter Hydraulic Drum Brake Assembly - Single Servo - 10" - Right Hand - 3,500 lbs

Videos are provided As a guide only. Refer To manufacturer
installation instructions And specs For complete information.

Video Transcript for Dexter 10" x 2-1/4" Right Hand Hydraulic Trailer Brakes Review

Today, we're looking at the Dexter 10" Hydraulic Brake Assembly, part number 23-313. This setup is for the right-hand side. And the way we tell it is by this configuration, the forward shoe lining be thinner or smaller than the rear shoe lining or your primary shoe. This is a single servo setup, which means it has one wheel cylinder and one piston that pushes out against the shoes and they'll create a wedge effect inside the brake hub drum assembly. Couple this assembly with the left-hand side and the pair will create 3,500 pounds in braking capacity. To give the measurement of our assembly, we'll simply measure across the linings and see it is a 10" width.

Then we can measure the brake linings themselves and see it is 2-1/4". So our hub drum assembly setup will have to be a 10" x 2-1/4" assembly. We're mounting our backing plate to our axle. It has 4 studs pre-pressed in to the backing plate. We'll bolt up to the axle flange through these 4 bolts.

You want to make sure that you have a 4 bolt setup. On your initial installation, you'll use a star wheel adjuster to push the brake lining out to meet your hub drum assembly braking surface. You want to create a light drag on the initial setup. Then as the linings wear down, you'll also need to adjust that star wheel which can be done through the backing plate access hole to keep that light drag and keep the clearances between the shoe linings and the hub drum assemblies to a minimum. And there you have it for our Hydraulic Brake Assembly from Dexter, part number 23-313..

Customer Reviews

Dexter Hydraulic Drum Brake Assembly - Single Servo - 10" - Right Hand - 3,500 lbs - 23-313

Average Customer Rating:  5.0 out of 5 stars   (2 Customer Reviews)

Passenger's-side hydraulic trailer brake assembly features a single-plunger design. Mounting flange has 4-bolt pattern.

- 23-313

by: Kirk S03/11/2015

I'm not reviewing the product as much as how easy it was for me to find it on I built a firewood/utility trailer about twenty years ago. Recently, I noticed the right hub getting hot. At first, I thought it was bearings, but found that the brake backing plate had been bent somehow and the brakes were rubbing. Some of the other parts were badly worn, and at first, I thought about just replacing the parts I needed. It turned out to be cheaper and way easier to buy the whole assembly. It's exactly what was on there before, so, even though I haven't installed it yet, I'm sure it will work out perfectly. 177933

- 23-313

by: Ron06/24/2013

Great ! Bolted right on in about 10 min! Nice new parts! Won't have to worry about my trailer brakes for years now!! Wish I knew about eTrailer years ago!! 85846


Ask the Experts about this Dexter Trailer Brakes
Do you have a question about this Trailer Brake?

  • Recommendations for Hydraulic Brake Assemblies on a 1993 Trail Rite 3500 Pound Boat Trailer
  • Whether you ultimately decide to go with free-backing or not, I would recommend getting galvanized brake assemblies. The springs are stainless steel and the plates are galvanized which will help them hold better since you have a boat trailer and the brake assemblies maybe exposed to more water. I like the free-backing systems better. They will make backing down a boat launch a bit smoother, especially if someone else is backing the vehicle in while you are in the boat pulling off the...
    view full answer...

  • Installing Hydraulic Trailer Brakes on a Kristi Utility Trailer
  • There are two ways to go. Drum brakes and Disc brakes. To determine which assemblies will fit on your spindles we will need to know the inner and outer bearing and seal part numbers. We will also need the Brake Mounting Flange bolt pattern on the spindles and the bolt pattern and size of the wheels that are on your trailer. For the hydraulic actuator we will need the size of the trailer tongue where the actuator will mount. If you will get back to me with your choices and the needed...
    view full answer...

  • Replacement 10-Inch Hydraulic Brakes, Seals, Bearings for Boat Trailer With 6000-lb Axle
  • Thank you for providing specific capacities and dimensions for the replacement hydraulic brakes you need for your boat trailer. All of the hydraulic drum brakes we offer for 6000-lb rated axles are the 12 x 2-inch size. Our 10-inch hydraulic drum brake assemblies top out at a 3500-lb axle rating; please see the link provided. Demco # 40716 and # 40715 are examples. It is possible that your trailer manufacturer used a 6000-lb-rated axle with other components that are of lower capacity....
    view full answer...

  • Can Timbren Axle-Less Suspension be Used for a Boat Trailer/Marine Applications
  • You can use Timbren Axle-Less suspension for marine applications. But you would need 3500 pound kit # ASR3500S05. If attaching brakes you would need hydraulic brakes and not electric brakes. For a hub and drum assembly you could use # 8-247-50UC3-EZ which is a galvanized model for corrosion resistance. It has a 5 on 4-1/2 bolt pattern For compatible brake assemblies use # 23-312 for the left and # 23-313 for the right. Then you would need a brake actuating coupler, see link to the...
    view full answer...

  • Wheel Cylinder Needed for 10 Inch Dexter Hydraulic Brake Drum Assembly
  • Based on my research, the 36-94 backing plate is used on the Dexter Single Servo # 23-313, # 23-312 hydraulic brake assemblies. For a 10 inch brake, left hand side, you will want # BP17-030 Wheel Cylinder. For 10 inch brake, right hand side, you will want # BP17-020 Wheel Cylinder.
    view full answer...

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Information for this part was:

Photos Edited:
Jackie C
Updated by:
Lindsey S
Expert Research:
Patrick B
Photos by:
Sam P

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Info for this part was:

Photos Edited:
Jackie C

Updated by:
Lindsey S

Expert Research:
Patrick B

Photos by:
Sam P

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