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  1. Trailer Brakes
  2. Hydrastar
  3. Disc Brakes
  4. 7000 lbs Axle
  5. Hub and Rotor
  6. Marine Grade
Hydrastar Disc Brake Kit w/ Actuator for Triple Axle Trailers - 9/16" Studs - 8 on 6-1/2 - 7K
Hydrastar

Hydrastar Disc Brake Kit w/ Actuator for Triple Axle Trailers - 9/16" Studs - 8 on 6-1/2 - 7K

Part Number: HYD54FR
In Stock
$3,015.20
Trailer Brakes
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In Use/Installed

9/16" Wheel bolts are included in this brake kit. Allows you to switch your trailer over to disc brakes for improved performance and greater stopping power. Dacromet-coated brakes are corrosion resistant. Perfect for use with boat trailers. Great Prices for the best trailer brakes from Hydrastar. Hydrastar Disc Brake Kit w/ Actuator for Triple Axle Trailers - 9/16" Studs - 8 on 6-1/2 - 7K part number HYD54FR can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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  • Reviews (7)
  • Q & A (0)
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Hydrastar Trailer Brakes - HYD54FR

  • Disc Brakes
  • 7000 lbs Axle
  • Hub and Rotor
  • Marine Grade
  • 8 on 6-1/2 Inch
  • Hydrastar
  • 9/16 Inch Studs

9/16" Wheel bolts are included in this brake kit. Allows you to switch your trailer over to disc brakes for improved performance and greater stopping power. Dacromet-coated brakes are corrosion resistant. Perfect for use with boat trailers.


Features:

  • Dacromet-coated brake kit has everything you need to switch your trailer over to disc brakes
    • 6 Disc brake end kits
      • Hub-and-rotor assemblies
      • Grease seals, races, and bearings
      • Calipers with mounting brackets and hardware - attach to 5-bolt brake flanges
    • Hydrastar electric-over-hydraulic brake actuator
      • Hardwires into tow vehicle and signals in-cab brake controller when brakes are applied, triggering pump and motor on actuator
      • Creates smooth, even braking with fast response time
      • Works with most in-cab brake controllers (sold separately)
    • Line kit with brake lines and fittings for triple-axle trailers
  • Disc brakes deliver better performance
    • Consistent stopping even at highway speeds
    • Shorter stopping distance than most drum brakes
  • Trailer coupler not included


Specs:

  • Axle capacity: 7,000 lbs
  • Bolt pattern: 8 on 6-1/2"
  • Rotor diameter: 13"
  • Wheel stud diameter: 9/16"
  • 3-Year warranty


Bearings, Race, and Seal Information:

  • Bearings
    • Inner bearing 25580
    • Outer bearing: 14125A
  • Races
    • Inner race: 25520
    • Outer race: 14276
  • Seal: GS-2250DL
    • Inner diameter: 2.250"
    • Outer diameter: 3.376"

Complete Kit Includes:

  • Hydrastar electric-over-hydraulic trailer brake actuator
  • 7K disc brake kit including hub-and-rotor assemblies with bearings, races, and seals
  • Hydraulic triple-axle brake line kit
    • (1) 30' Long brake line - 3/16"
    • (1) 6' Long brake line - 3/16"
    • (6) 4-1/4" Long brake lines - 3/16"
    • (6) 18" Male/male rubber flex lines
    • (3) 3/16" Brass T-fitting
    • (2) 3/16" Brass union fitting
    • (1) 3/16" Brass X-fitting
    • 1/2" Nylon hose clamps
    • 3/16" Nylon hose clamps
    • Self-tapping screws

Disc Brakes

More and more people are switching their trailers over to disc brakes, and with good reason. Disc brakes deliver consistent braking - even at highway speeds - unlike drum brakes, which often show a substantial drop in braking torque at higher speeds. In addition, disc brakes offer a substantially shorter stopping distance than drum brakes. Disc brake calipers have only one moving part, rather than the many found in drum brakes. This means that there are fewer parts to maintain, fewer parts to get damaged and fewer parts to have to repair or replace, thus reducing maintenance costs.


Integral Hub-and-Rotor Assemblies

The integral hub-and-rotor is made from cast iron, matching SAE specifications. Cast iron is ideal for high-temperature operations and offers a favorable friction coefficient to ensure adequate stopping power. Furthermore, machined disc brakes minimize the chance of contamination between the hub and rotor, resulting in excellent performance and long life.



E7K-TR9 Hydra Star Disc Brake Kit w/ Actuator for Triple Axle Trailers - 13" Hub/Rotor - 8 on 6-1/2 - 7K - 9/16" Wheel Studs





Customer Satisfaction Score:


Customer Reviews

Hydrastar Disc Brake Kit w/ Actuator for Triple Axle Trailers - 9/16" Studs - 8 on 6-1/2 - 7K - HYD54FR

Average Customer Rating:  4.9 out of 5 stars   (7 Customer Reviews)

9/16" Wheel bolts are included in this brake kit. Allows you to switch your trailer over to disc brakes for improved performance and greater stopping power. Dacromet-coated brakes are corrosion resistant. Perfect for use with boat trailers.

by:

best thing I could've done! better brake performance and less maintenance!



by:

Excellent product, simple straightforward installation. It would be a good idea if they would include the endcap for the rotor on a conversion like this. Considering what it would have cost to buy all the parts to bring my drum brakes up to speed, it was a simple decision for a better brake system worth the extra few bucks. There are better places to install the hydraulic control then on top of the generator in the forward compartment. I installed mine underneath the propane tank, plenty a room just don't Close the bottom off completely so the ventilation stays intact for the propane.

Ken

12/23/2022

The brake system works very well. So so much better than the drum system. And super happy with the brake system.



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Info for this part was:

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

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