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  1. Trailer Brakes
  2. Hydrastar
  3. Disc Brakes
  4. 3500 lbs Axle
  5. Hub and Rotor
  6. Standard Grade
Hydrastar Disc Brake Kit w/ Actuator for Single Axle Trailers - 10" Rotor - 5 on 4-1/2 - 3.5K
Hydrastar

Hydrastar Disc Brake Kit w/ Actuator for Single Axle Trailers - 10" Rotor - 5 on 4-1/2 - 3.5K

Part Number: HYD82FR
$1,410.25
Trailer Brakes
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Get 2 rust-resistant hub-rotor assemblies - complete with stainless steel calipers and inner (L68149) and outer (L44649) bearings - and an electric-over-hydraulic actuator that works with your existing brake controller. Includes lines and fittings. Great Prices for the best trailer brakes from Hydrastar. Hydrastar Disc Brake Kit w/ Actuator for Single Axle Trailers - 10" Rotor - 5 on 4-1/2 - 3.5K part number HYD82FR can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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  • Reviews (1)
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  • Videos (1)
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Hydrastar Trailer Brakes - HYD82FR

  • Disc Brakes
  • 3500 lbs Axle
  • Hub and Rotor
  • Standard Grade
  • 5 on 4-1/2 Inch
  • Hydrastar
  • 1/2 Inch Studs

Get 2 rust-resistant hub-rotor assemblies - complete with stainless steel calipers and inner (L68149) and outer (L44649) bearings - and an electric-over-hydraulic actuator that works with your existing brake controller. Includes lines and fittings.


Features:

  • Complete kit upgrades your trailer to disc brakes for better performance
    • Consistent stopping even at highway speeds
    • Shorter stopping distance than drum brakes
  • Stainless steel calipers are rustproof
    • Mounting brackets and hardware included
  • 2 Dacromet-coated disc brake end kits
    • Rotors with bearings and grease seals included
  • Electric-over-hydraulic brake actuator activates the trailer brakes when you apply the brakes in your tow vehicle
    • Installs on trailer frame and connects to trailer's wiring and includes brake lines
    • 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 single-axle trailers


Specs:

  • Axle capacity: 3,500 lbs
  • Bolt pattern: 5 on 4-1/2"
  • Rotor diameter: 10"
  • Wheel stud diameter: 1/2"
  • Warranty:
    • Actuator: 2 years
    • Brakes and components: 1 year


Bearings, Race, and Seal Information:

  • Bearings
    • Inner bearing: L68149
    • Outer bearing: L44649
  • Races
    • Inner race: L68111
    • Outer race: L44610
  • Grease seal
    • Inner diameter: 1.719"
    • Outer diameter: 2.565"

Complete Kit Includes:

  • Electric-over-hydraulic trailer brake actuator
  • 3.5K disc brake kit with hub-and-rotor assemblies, bearings, and grease seals
  • Stainless steel calipers
  • Hydraulic single-axle brake line kit
    • (1) 188" Long brake line with 3/8"-24 inverted flare nuts
    • (1) 70" Long brake line with 3/8"-24 inverted flare nuts
    • (2) 21" Male/male rubber flex lines with 3/8"-24 inverted flare nuts
    • (1) 3/8" Brass T-fitting
    • (1) 3/8" Brass union fitting
    • 1/2" Nylon hose clamps
    • 1/4" Nylon hose clamps
    • Self-tapping screws

Disc Brakes are Better Than Drum Brakes

More and more people are switching their trailers over to disc brakes, and with good reason. Unlike drum brakes, disc brakes deliver consistent braking, even at highway speeds. Disc brakes also offer a substantially shorter stopping distance. Disc brake calipers have only one moving part, so there are fewer parts to maintain, fewer parts to get damaged, and fewer parts to have to repair or replace.



E3K-S1SSC Hydra Star Disc Brake Kit with Electric-Over-Hydraulic Actuator for Single Axle Trailers - Stainless Steel Calipers - 10" Diameter Rotor - 3,500-lb Rating





Video of Hydrastar Disc Brake Kit w/ Actuator for Single Axle Trailers - 10" Rotor - 5 on 4-1/2 - 3.5K

Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.




Video Transcript for Review of Hydrastar Trailer Brakes - Single Axle Disc Brake Kit - HYD82FR

Hello everybody, this is Jeff at etrailer.com. Today we're gonna take a look at the Hydrastar disc brake kit with the electric over hydraulic brake actuator for single 3,500 pound trailer axles, has a five on 4 1/2 inch bolt pattern. Now this is an all inclusive kit, has everything you're gonna need to switch your trailer over to disc brakes for improved performance and greater stopping power. This will include everything shown here. It includes two disc brake end kits for one axle. These hub and rotor assemblies right here have the 1/2 inch diameter wheel studs on them, and they also have the bearing races already pre-installed in them.

Comes with the inner and outer bearings, the grease seals, the stainless steel calipers that have the brake pads in there, and the installation bolts. And the caliper mounting brackets, you can see that we have these, the calipers, mounted too. They are designed to attach to, as you can see, a four bolt brake flange. Now the hub and rotors and the caliper mounting brackets all have a Dacromet coating, which is corrosion resistant. And as we mentioned, the calipers themselves are stainless steel.

Now the brake actuator, I wanna zoom in and show you. This is a Hydrastar electric over hydraulic brake actuator. Basically this part will hardwire into your tow vehicle, and it signals your in-cab brake controller when the brakes are applied, triggering the pump and motor on the actuator. This will help create a smooth even braking with fast response time, and it does work with most in-cab brake controllers. Now the brake controllers are sold separately.

Also, if you notice it comes, let me zoom back out here, comes with the brake line kit that has all the solid brake lines, the flexible lines, and all the fittings you need for a single axle trailer. Now we list on the product page of this product all the part numbers of these parts here that are included with the kit. Now more and more people are switching their trailers over to disc brakes and with a good reason because unlike drum brakes, disc brakes will deliver consistent braking even at highway speeds. Disc brakes also offer a substantially shorter stopping distance, and the disc brake calipers have only one moving part, so there are fewer parts to have to maintain, fewer parts to get damaged, and fewer parts to have to repair or replace. Application for this kit, again, is single axle trailers, 3,500 pound axle capacity, bolt pattern five on 4 1/2 inches.

The rotor diameter is 10 inches and the studs, again, are 1/2 inch. But that should do it for a look at the Hydrastar disc brake kit with the electric over hydraulic brake actuator for single 3,500 pound trailer axles.

Ratings & Reviews

5.0

1 reviews
Get 2 rust-resistant hub-rotor assemblies - complete with stainless steel calipers and inner (L68149) and outer (L44649) bearings - and an electric-over-hydraulic actuator that works with your existing brake controller. Includes lines and fittings.

by:

The folks at E-trailer are amazing. Great customer service and support. The hydastar ki obviously speaks for itself, superior product by far. Best brake upgrade for marine application on the market.


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Info for this part was:

Employee Jeff D
Installed by:
Jeff D
Employee Jameson C
Expert Research:
Jameson C
Employee Wilson B
Updated by:
Wilson B
Employee Jeremy F
Written by:
Jeremy F

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