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  1. Trailer Brakes
  2. Hydrastar
  3. Disc Brakes
  4. 3500 lbs Axle
  5. Hub and Rotor
  6. 14 Inch Wheel
  7. 15 Inch Wheel
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: HYD92FR
In Stock
$1,343.41
Trailer Brakes
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Get 2 rust-resistant hub-rotor assemblies - complete with 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 HYD92FR can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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  • Reviews (2)
  • Q & A (0)
  • Videos (1)
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Hydrastar Trailer Brakes - HYD92FR

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

Get 2 rust-resistant hub-rotor assemblies - complete with 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
  • 2 Dacromet-coated disc brake end kits
    • Hub-rotor assemblies include bearings, races, seals, and grease caps
    • Calipers with mounting brackets and hardware
  • 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 included 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, calipers, bearings, and grease seals
  • 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-S1 Hydra Star Disc Brake Kit with Electric-Over-Hydraulic Actuator for Single Axle Trailers - 10" Diameter Rotor - 3,500-lb Rating




California residents: click here


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 - Disc Brakes - HYD92FR

Hi, everyone. Steve here with etrailer. Let's take a look at our Hydrastar disc brake kit with included actuator for a single axle trailer. Folks, this is gonna give you 10-inch rotors. The lug pattern is a five on 4 1/2 inch lug pattern, so make sure you're double-checking your lug pattern, or reach out to us if you need assistance on how to figure that out. Now, this is rated for 3,500 pound axles.

And they do include the inner and outer bearings. The seals, the races are already pressed inside of the units themselves, so you don't have to worry about that part. And of course you get your calipers, all your bolts needed for installing the calipers, brake lines, your flexible brake hoses, and of course, your short and long brake lines as well. So they're gonna give you enough brake line to go from the actuator all the way back to the axle beam, and then cross left and right to reach both assemblies for braking. Now, this is the actuator here.

It's an electric over hydraulic actuator. It's pretty beefy. And of course, they got the caps on here just for shipping to keep those threads nice and safe. And on the top here, you can see it does have a nice red one label. It says use .3 or four brake fluid from a new sealed container.

So make sure you're following all the instructions. Again, you have all the wiring. There's a bag full of clips and little screws and bolts here. I left them in there just so I didn't lose them, but you get all of that as well. So let's talk about the assembly here.

So the rotor assembly hub, rotor assembly all in one piece here. It does have a nice decrement coating, so that's why it kinda has that shine, if you will, but that's gonna give you superior protection against rust, corrosion, those kinda things, so these are gonna be great for you for longevity. And with this kit, it's gonna improve your braking capability, your stopping power, so you're gonna have shorter stopping distances versus, like, your electric drum brakes that you probably are used to if you've never used disc brakes. And these are gonna be super effective at highway speeds, heavier loads. These are just by far, a much, much more reliable, better, smoother braking than your traditional electric brakes that you're probably used to. Now, if you've used these before and you're getting this kit 'cause you know just how great they are, great. As I said, you get everything here included with the kit. And like always, if you have questions about this or any other product we carry here at etrailer, reach out to us. We're here to answer any questions we can. And that being said, if we miss something here that you wanna see in the future videos, let us know. We're here to help you. We wanna make sure we give you the best possible information the first time as we possibly can. I'm Steven with etrailer. Thanks so much for your time, I hope this information has been helpful for you, and have a great day.

Ratings & Reviews

5.0

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

by:



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.


2
2

See what our Experts say about this Hydrastar Trailer Brakes

  • Will Hydrastar Disc Brake Kit Hold Up In Salt Water
    Hey Mike! Yes, the Hydrastar Disc Brake Kit # HYD92FR will work well in a salt water marine environment. The Dacromet coated components do a great job holding up in salt water and help prevent corrosion. It uses a traditional grease hub with standard bearings and a grease seal, so it can replace an oil bath setup. If you want the best corrosion protection, the DeeMaxx Disc Brake Kit # DE46YR is the better choice. This uses their Maxx Coat (Dacromet) along with stainless steel for the best...
    view full answer...

Info for this part was:

Employee Jeff D
Installed by:
Jeff D
Employee Steven C
Installed by:
Steven C
Employee Wilson B
Updated by:
Wilson B
Employee Jeremy F
Written by:
Jeremy F

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