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  1. Trailer Brakes
  2. Dexter
  3. Hydraulic Drum Brakes
  4. 9000 lbs Axle
  5. 10000 lbs Axle
  6. 12000 lbs Axle
ALKO/Hayes Hydraulic Trailer Brakes - Duo Servo - 12-1/4" - Left/Right - 9K to 12K
Dexter

ALKO/Hayes Hydraulic Trailer Brakes - Duo Servo - 12-1/4" - Left/Right - 9K to 12K

Part Number: K23-524-00-2
In Stock
$712.55
Trailer Brakes
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Need new hydraulic drum brakes that fit on your Dexter, Lippert, and AL-KO/Hayes axles? Look no further. 7" x 1-3/4" Assemblies fit wheels 16" or larger. 4-Bolt pattern backing plates. Made in the USA. Great Prices for the best trailer brakes from Dexter. ALKO/Hayes Hydraulic Trailer Brakes - Duo Servo - 12-1/4" - Left/Right - 9K to 12K part number K23-524-00-2 can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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  • Reviews (5)
  • Q & A (0)
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Dexter Trailer Brakes - K23-524-00-2

  • Hydraulic Drum Brakes
  • 9000 lbs Axle
  • 10000 lbs Axle
  • 12000 lbs Axle
  • 12-1/4 x 3-1/2 Inch Drum
  • 16 Inch Wheel
  • 16-1/2 Inch Wheel
  • 17 Inch Wheel
  • 17-1/2 Inch Wheel
  • Standard Grade
  • Dexter

Need new hydraulic drum brakes that fit on your Dexter, Lippert, and AL-KO/Hayes axles? Look no further. 7" x 1-3/4" Assemblies fit wheels 16" or larger. 4-Bolt pattern backing plates. Made in the USA.


Features:

  • Dual-plunger cylinder provides more braking power than uni-servo cylinders
    • Designed for use with surge actuators that have reverse lockouts
    • Reduced chances of uneven pad wear
  • Periodic manual adjustment required
  • Left-hand (driver's-side), right-hand (passenger's-side) brake assemblies, mounting bolts, and hardware are included
  • Made in the USA


Specs:

  • Application: most standard hub-and-drum assemblies including Dexter, Lippert (LCI), and AL-KO/Hayes
  • Configuration: left hand (driver's side) and right hand (passenger's side)
  • Dimensions: 12-1/4" diameter x 3-1/2" wide
  • Mounting flange bolt pattern: 5 bolt
  • Wheel size: 16" or larger
  • Axle rating: 9,000 lbs to 12,000 lbs
  • Limited 5-year warranty


AL-KO/Haynes mounting flange patternStandard 5-bolt brake flange pattern for AL-KO/Hayes brake assembly

How to Break In New Brakes

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.



K23-524-00 Hayes / ALKO 12-1/4" x 3-1/2" Hydraulic Brake Assemblies - Left Hand and Right Hand - 9K to 12K




California residents: click here


Customer Satisfaction Score:

Ratings & Reviews

5.0

5 reviews
Need new hydraulic drum brakes that fit on your Dexter, Lippert, and AL-KO/Hayes axles? Look no further. 7" x 1-3/4" Assemblies fit wheels 16" or larger. 4-Bolt pattern backing plates. Made in the USA.

by:

Was a hard to find part. E trailer team did a great job of getting the parts I needed.



by:

etrailer as always has what I need, ships fast, and product is "as advertised"!
A pleasure to talk to the tech's when I have questions and even go as far as calling manufacturer to verify equipment selections.
Keep up the GREAT work.



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5
5

See what our Experts say about this Dexter Trailer Brakes

  • Recommended Electric Trailer Brakes With Haynes/AL-KO 5 Bolt Brake Mounting Flange Pattern
    You are correct that there are two different 5 bolt brake mounting flange bolt patterns, but I recommend re measuring your drums as they should be either 12" or 12'1/4". You will want to measure your current drums according to the included diagram. The Hayes/AL-KO Hydraulic Brake Kit - Duo Servo - 12-1/4" - Left Hand/Right Hand - 9K to 12K # K23-524-00-2 use the larger 5 bolt pattern as shown in the included diagram, but are designed for 9000-12000lb axles and use a 12-1/4" drum. If this...
    view full answer...
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  • Trailer Brake Replacement For Hayes 6 Bolt 10k Axle
    Based on your picture and my research it appears that you may have a 6 bolt pattern mounting flange but will only use 5 bolts to attach. With that being said, a 12 1/4" diameter, 3 1/2" wide hydraulic brake assembly replacement would be the Hayes/AL-KO Hydraulic Brake Kit - Duo Servo # K23-524-00-2. This will fit a 16" wheels or larger, up to 17 1/2".
    view full answer...
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  • Correct Replacement Braking Assemblies for an Older Hayes AL-KO 12K Axle
    I am assuming you're looking for a replacement braking assembly for your older Hayes AL-KO axle. If so, you're going to just need the Hayes/AL-KO Hydraulic Brake Kit - Duo Servo - 12-1/4" # K23-524-00-2 or just # K23-524-00 for one assembly. You mention that you have a 6-bolt mounting flange, and while it's true the older Hayes axles had 6-bolt flanges it only actually used 5 to mount. If you're also needing replacement inner/outer bearings as well as an oil seal, you can use # 28580...
    view full answer...
    Image 1 for
  • Correct Braking Assemblies for Haynes Axle with 6 Bolts
    The larger Haynes Axles did in fact have a 6 bolt brake mounting flange but the braking assemblies actually only uses five bolts to attach. Therefore, the Hayes/AL-KO Hydraulic Brake Assembly part # K23-524-00 is very what you need. That said, you would need to order a quantity of two in order to cover both sides of the axle as the above part is one for one assembly. If you want to buy both you can simply order two of the above or go with the Hayes/AL-KO Hydraulic Brake Kit part # K23-524-00-2. I...
    view full answer...
    Image 1 for
  • Replacement Drum Brakes Assembly for 10,000 lb Dexter Axle
    We have drum brake assemblies for your 10K Dexter axles. If you want the electric assemblies, we have the Dexter Electric Brake Kit - Self-Adjusting - 12-1/4" - Left/Right Hand Assemblies - 9K to 10K # 23-450-451 if your hubs are 12-1/4 by 3-3/8 inches. If your hubs are the 4 inch width, then you will use the Dexter Electric Trailer Brake Kit # 23-438-439. If you have hydraulic brakes we have the following: # 23-410-411 for 12-1/4 x 3-3/8 inch drum # K23-524-00-2 for 12-1/4 x 3-1/2...
    view full answer...
  • Replacement Electric Brakes For A 10,000 Pound Trailer Axle
    There are three different sizes of electric brakes that could work for your 10,000 pound axle. I would need to know the current size of brakes that you currently have on your trailer. The three sizes are listed below: 12-1/4 X 3-3/8 Inch Drum 12-1/4 X 4 Inch Drum 12-1/4 X 3-1/2 Inch Drum The Electric Trailer Brake Kit w/ Dust Shields # AKEBRK-10 have a dimension of 12-1/4 inch diameter X 3-3/8 inch wide. If you could find out your current measurements and get back with me I will...
    view full answer...
  • How To Determine Correct Brake Assemblies For A Tandem 10K Axle Gooseneck Trailer
    Yes you can absolutely send a couple pictures in, however more importantly you're going to need to know the inside diameter of your hub, and take note of the mounting flange pattern. Since you already know your axles capacity, that takes one variable away, but you'll need to find the other two values as well in order to get the correct assemblies. For instance, the Hayes/AL-KO Hydraulic Brake Kit # K23-524-00-2 are for 9,000 to 12,000lbs axles, measure 12-1/4" x 3-1/2" wide, this would...
    view full answer...
    Image 1 for
  • Replacement Braking Assemblies for a 10,000 Lb Trailer Axle
    The correct replacement braking assembly for your trailer should be either the Hayes/AL-KO Hydraulic Brake Kit part # K23-524-00-2 or the Dexter Hydraulic Drum Brake Kit part # 23-410-411. If you take a look for a tag on the center of the axle that should tell you the manufacturer and weight capacity. If not you would need to inspect the brake mounting flange and size of the assembly. The Dexter assembly uses a 7 bolt brake mounting flange and is 12-1/4" diameter x 3-3/8" wide (see photo...
    view full answer...
    Image 1 for
  • Will The Hayes/AL-KO Brakes # K23-524-00-2 Work With A Hydrastar Electric/Hydraulic Actuator
    Yes, When installing The Hayes/AL-KO Hydraulic Brake Kit # K23-524-00-2 you can use a hydrastar electric over hydraulic actuator to help operate the brakes. I would recommend The Hydrastar Electric Over Hydraulic Actuator for Drum Brakes # HBA-12. I recommend this kit over the other kits because it has a faster response time and the trailer brakes are triggered when you apply the brakes in the tow vehicle. I attached a review video link below.
    view full answer...
  • Can 12 Inch Hub Drums for Electric Brakes Be Used With Hydraulic Brake Assemblies
    If they're still in serviceable condition, you can indeed continue to use your existing hub/drums. Assuming you have a 5 bolt brake flange, and the inside diameter and depth of your existing brake drums is 12-1/4 inches and 3-1/2 inches respectively, the Dexter # K23-524-00-2 would work perfectly.
    view full answer...
  • Can the Hubs Be Reused When Switching from Electric to Hydraulic Brakes On An AL-KO 10K Axle
    Generally speaking, you can reuse the hubs when switching from electric to hydraulic brakes or vice versa. There is no difference in the hub but you do need to be sure the braking assemblies are the same size. The Hayes/AL-KO Hydraulic Brake Kit part # K23-524-00-2 is my recommendation for hydraulic drum brakes and should work with your existing hubs no problem just be sure to verify the size of the drum and make sure it's 12-1/4" x 3-1/2". If you can provide more info on the trailer...
    view full answer...
  • Are the Hayes/AL-KO Hydrualic Brake Kit Self Adjusting
    The Hayes/AL-KO Hydraulic Brake Kit # K23-524-00-2 are manual adjusting brakes. To adjust these you'd just need to use a brake adjustment tool # W80630.
    view full answer...
  • Can Hayes/AL-KO Hydraulic Brake Kit be Used with Surge Brakes
    Yes the Hayes/AL-KO Hydraulic Brake Kit # K23-524-00-2 that you referenced will work with surge brake actuators. The diameter of the wheel cylinder is 1-3/4 inches.
    view full answer...
  • What Hubs and Brakes Do I Need for My 1996 Gooseneck Trailer With 9K ALKO Axles?
    Hello Joseph. For your ALKO 9K axle, I am showing that would be a #99 Spindle, and would require bearings 28580 and 25580, we used to sell this hub, but we no longer have it. I recommend reaching out to our friends at Dexter, you are going to need their part number: 9080568, I would double check your bearing numbers to make sure they match. When you get over 8k on axles all kinds of things come into play, especially the date when it was manufactured. If you want to send me a picture of...
    view full answer...
  • Will Hayes/AL-KO Hydraulic Brake Kit # K23-524-00-2 Work with EOH Actuator
    Yes, the Hayes/AL-KO Hydraulic Brake Kit # K23-524-00-2 will work with electric over hydraulic actuators like the HydraStar # HBA-12.
    view full answer...
  • axle
    The problem with mobile home axles is that they are intended for one time use and they don't have replacement parts made for them. So there aren't any options you have to get modern components on your trailer except for an all new axle or have new spindles welded to axle.
    view full answer...
  • Solution for Needing Replacement Brakes/Trailer Hubs for Trailer with Mobile Home Axles
    Mobile home axle parts are considered one time use and are not able to be replaced with standard trailer parts so you'd be looking at having to replace the axles. I'd need the distance between the spring centers of your current axle as well as the distance from hub face to hub face and I'd be able to pick out the correct axle for your application. You'll also need the bolt pattern of the wheels you have to pick out which I attached a help article on determining. I also attached a link...
    view full answer...

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Info for this part was:

Employee Mike L
Expert Research:
Mike L
Employee Jameson C
Expert Research:
Jameson C
Employee Lindsey S
Edited by:
Lindsey S
Employee Jeff D
Installed by:
Jeff D
Employee Wilson B
Updated by:
Wilson B
Employee Alexander C
Written by:
Alexander C

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