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Dexter Hydraulic Drum Brake Assembly - Duo Servo - 12" - Left Hand - 7,000 lbs

Dexter Hydraulic Drum Brake Assembly - Duo Servo - 12" - Left Hand - 7,000 lbs

Item # 23-336
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Dexter Axle Trailer Brakes - 23-336
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12" x 2" Driver's-side hydraulic trailer brake assembly features a dual-plunger design. Mounting flange has 5-bolt pattern. Fits 14-1/2" to 16" wheels. Call 800-298-1624 to order Dexter Axle accessories and parts part number 23-336 or order online at etrailer.com. Free expert support on all Dexter Axle products. Guaranteed Lowest Price and Fastest Shipping for Dexter Hydraulic Drum Brake Assembly - Duo Servo - 12" - Left Hand - 7,000 lbs. Accessories and Parts reviews from real customers.
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  • Reviews (5)
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  • Videos (1)
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Dexter Axle Accessories and Parts - 23-336

  • Trailer Brakes
  • Hydraulic Drum Brakes
  • Brake Assembly
  • Dexter Axle
  • 12 x 2 Inch Drum
  • LH
  • Dual Servo
  • 7000 lbs

12" x 2" Driver's-side hydraulic trailer brake assembly features a dual-plunger design. Mounting flange has 5-bolt pattern. Fits 14-1/2" to 16" wheels.


Features:

  • Hydraulic drum brake assembly is designed for use with a surge-type trailer brake actuator
  • Dual-plunger design delivers same amount of braking when driving either forward or in reverse
  • Adjuster plugs (included) cover access holes to keep dirt and grime out of the assemblies and off of the shoes
  • Mounting bolts sold separately
  • Made in the USA


Specs:

  • Application: most standard hub-and-drum assemblies, including Dexter, Lippert (LCI), and AL-KO
  • Configuration: left hand (driver's side)
  • Dimensions: 12" diameter x 2" wide
  • Mounting flange bolt pattern: 5 bolt
  • Wheel size: 14-1/2", 15" or 16"
  • Axle rating: up to 7,000 lbs
  • Limited 5-year warranty


K23-336-00 Dexter 12" Duo-Servo Hydraulic Brake Assembly - LH - 7K

Replaces 23-336





Video of Dexter Hydraulic Drum Brake Assembly - Duo Servo - 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 Dexter Axle Trailer Brakes 23-336 Review

Today we're going to take a look at the Dexter 12 inch left hand, driver side hydraulic drum brake assembly for up to 7,000 pound axles. Now hydraulic drum brake assemblies are designed for use with surge type trailer brake actuators. This one happens to be a duo servo. You can see right here it's a duo plunger design, and this will deliver the same amount of braking when you're driving either forward or in reverse. Now this assembly is a manual adjustment brake. You can see right down here is your adjustment gear.

So you do have to do a periodic manual adjustment. What's nice on this if you notice, there's an access hole here that you'd put your tool through to adjust your brakes, and they do include the adjuster plug. It's a nice rubber adjuster plug, which covers that access hole. Helps keep the dirt and grime out of the assembly and off the brake shoes. Now this is the left hand driver side brake assembly. It does come with the mounting lock washer nuts to install this on your mounting flange.

Now on 12 inch size brake assemblies, the bolt is already on the brake mounting flange so all you need is the nuts that has the lock washer included. A few specs on this. This is a 12 inch by 2 inch size brake assembly. Now the 12 inch is the diameter, which is measured from this brake shoe all the way over to this brake shoe. So if we put a ruler on there's your 12 inch diameter.

The two inch wide is the width of the pad on the brake shoe. So again if we put the ruler on it, there's your two inches wide. Again, this is designed to put on a brake mounting flange bolt pattern of five bolts. It does require the use of 12 inch brake drums. The wheel size that would be used on this assembly is anywhere from 14.5 inches to 15 inches, and 16 inches.

Again this is designed for axles that are rated up to 7,000 pounds. Now this is a left hand drives side assembly. Now the way you can tell that, now on the new assembly of course you'll have a sticker that will tell you that, but if the sticker wasn't there the easiest way to tell is just look at the length of the pad on the brake shoe. This pad goes from here to here. This runs all the way from here to here. This is a longer pad. This is a shorter pad. The shorter pad is the primary shoe. That will always face the front of the trailer. So that will tell you it goes this way. That would mean that this is the left hand driver's side brake assembly. But that should do it for the review on the Dexter 12 inch left hand, driver's side hydraulic drum brake assembly for up to 7,000 pound axles.


Customer Reviews

Dexter Hydraulic Drum Brake Assembly - Duo Servo - 12" - Left Hand - 7,000 lbs - 23-336

Average Customer Rating:  4.8 out of 5 stars   (5 Customer Reviews)

12" x 2" Driver's-side hydraulic trailer brake assembly features a dual-plunger design. Mounting flange has 5-bolt pattern. Fits 14-1/2" to 16" wheels.

- 23-336
by:

Very nice brake assembly, went on well, everything lined right up



- 23-336
by:

Always have great service and parts have always been correct. Most of the time parts are in stock and shipping has always been fast.



- 23-336
by:



- 23-336
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- 23-336
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5
5

Ask the Experts about this Dexter Axle Accessories and Parts



  • What Size Fittings for Dexter 23-336-337 Duo Servo Hydraulic Drum Brake Kit
    The wheel cylinders on the Dexter # 23-336-337 Duo Servo Hydraulic Drum Brake Kit take a 3/16 fitting, which is typical for trailer brakes. If you click the provided link, you can see a product description video featuring the drum brake kit.
    view full answer...
  • Replacement Brake Shoes or Assemblies for 1999 Manning Triaxle Trailer
    The Dexter Hydraulic Drum Brake Assembly - Duo Servo - 12" - Left Hand - 7,000 lbs # 23-336 is the Left Hand Assembly, but if you just want the brake shoes use 12" x 2" Hydraulic Trailer Brake Shoe and Lining (One Wheel) # BP04-160. If you want to replace both assemblies on an axle use Dexter Hydraulic Drum Brake Kit - Duo Servo - 12" - Left and Right Hand Assemblies - 7,000 lbs # 23-336-337.
    view full answer...
    Image 1 for
  • Can 12 inch Electric Trailer Brake Assemblies be Replaced with Hydraulic Assemblies
    Yes, if you had a set of 12 by 2 inch electric trailer drum brakes you could replace them with the hydraulic drum brake kit part # 23-336-337 or vice versa. The Dexter electric set in the same size and 7k capacity is the part # 23-464-465.
    view full answer...
  • Does Car Trailer with 7k Axles Need Free-Backing Brake Assemblies as Replacements
    If your car trailer has a reverse lock out solenoid on it then you wouldn't need free-backing plates and the part # 23-336-337 would be the set you'd need for each axle. If you do not have a reverse lockout solenoid on your actuator (two wires ran to the back of it) you'd need free-backing plates like the part # 23-342-343 so that you could back the trailer up without the brakes applying.
    view full answer...
  • Free Backing Hydraulic Drum Brakes
    I have a solution for you but no, the Dexter Hydraulic Drum Brakes item # 23-336-337 would lock up every time you backed your trailer up. You need free backing brakes like the Dexter Hydraulic Trailer Brake Kit - Free Backing - 12" - Left and Right Hand Assemblies item # 23-342-343. These drum brakes are rated up to 7,000 lbs like the ones you were looking at.
    view full answer...
  • Comparing the Dexter Duo-Servo Brake Kit with the etrailer Uni-Servo Brake Kit
    The Dexter Hydraulic Drum Brake Kit # 23-336-337 that you mentioned are Duo-Servo brakes meaning they deliver the same amount of braking whether you are driving either forward or in reverse. The Hydraulic Trailer Brake Kit # AKUBRK-7 that you referenced are Uni-Servo brakes which means that they will still apply braking when going in reverse, just not as much (about 20% total power) as the Duo-Servo brakes. Unless you plan on doing a lot of backing up with your trailer and you need that...
    view full answer...
  • Replacement Dexter Brake Assembly Set for 7k Hydraulic Drum Axle
    The part number you referenced is for a Dexter single servo 7k drum brake assembly that is 12 inch in diameter. We have the duo servo kit part # 23-336-337 which will be exactly what you want. It comes with a left and right assembly as well. Only difference is the duo servo setup which means both brake pads pressurize against the drum when you apply the brakes.
    view full answer...
  • Replacement 12 X 2 Hydraulic Brakes Duo-Servo and Uni-Servo, Plus Replacement Bolts and Washers
    We do not sell the wheel cylinder only - you would have to purchase the Dexter # 23-337 hydraulic brake assembly for right hand side or Dexter # 23-336 for left side. For Uni-Servo Free Backing brakes, 7000 pounds, order the Dexter 23-342 for left hand, and 23-343 for right If you want new mounting bolts order the Redline # 7-5 bolts, and for split washers order Redline # 38LW washers.
    view full answer...
  • Hydraulic Trailer Brake Assemblies Compatible with the Dexter 8-174-5UC3 Hub Drum Assemblies
    The Dexter Trailer Hub and Drum Assembly - 6,000-lb and 7,000-lb Axles - 12" - 5 Spoke Utility # 8-174-5UC3 is compatible with either the Dexter Hydraulic Drum Brake Kit - Duo Servo - 12" - Left and Right Hand Assemblies - 7,000 lbs # 23-336-337 or the free backing Uno Servo # 23-342-343. The Duo Servo option will give you the best braking capacity with those hubs so that is my recommendation.
    view full answer...
  • Recommended Electric Over Hydraulic System for Keystone Montana High Country 5th Wheel Trailer
    As long as your truck's controller has the electric over hydraulic actuator compatibility you won't need to change anything in your truck. If it doesn't there are many options that you can use as a replacement. I recommend the Prodigy P3 # 90195 if you need a replacement. For your Montana High Country 5th wheel trailer, the HydraStar Electric Over Hydraulic Actuator Kit for Drum Brakes - 1,000 psi # HBA-10-252-82 is my recommendation for you. This will give you what you need to your...
    view full answer...
  • Recommended Triple Axle System with ABS Braking System
    It doesn't sound to me like you need to replace your axles. The hub/drum assemblies you referenced are for 5200 lb axles, so I can reuse your hubs # 8-201-5. My recommendation is to change out your brake assemblies to the Dexter Hydraulic Drum Brake Kit - Duo Servo - 12" - Left and Right Hand Assemblies - 7,000 lbs # 23-336-337 with the brake line kit # 24TR-BLKIT. Then you can use the Tuson 4 Channel Towable Anti-Lock Braking System (ABS) for Hydraulic Drum Brakes # 335ABS-DLNE-1000...
    view full answer...

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Info for this part was:

Employee Lindsey S
Updated by:
Lindsey S
Employee Wilson B
Updated by:
Wilson B
Employee Alexander C
Updated by:
Alexander C
Employee Jeff D
Installed by:
Jeff D

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