Hydrastar Disc Brake Kit w/ Actuator for Tandem Axle Trailers - 13" Hub/Rotor - 8 on 6-1/2 - 7K
(40 reviews)
Price: $2,634.52
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Hydrastar Disc Brake Kit w/ Actuator for Tandem Axle Trailers - 13" Hub/Rotor - 8 on 6-1/2 - 7K
Item # HSE7K-T1
Retail:$2,674.98
Our Price: $2,634.52
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- Reviews (40)
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Hydrastar Trailer Brakes - HSE7K-T1
- Disc Brakes
- 7000 lbs Axle
- Hub and Rotor
- Marine Grade
- 8 on 6-1/2 Inch
- Hydrastar
- 1/2 Inch Studs
Kit includes everything you need 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:
- All-inclusive kit has everything you need to switch your trailer over to disc brakes
- 4 Disc brake end kits
- Hub-and-rotor assemblies
- Grease seals, races and bearings
- Grease caps (F001526) available separately
- 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 tandem-axle trailers
- 4 Disc brake end kits
- 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: 1/2"
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 tandem-axle brake line kit
- (1) 15' Long brake line with 3/8"-24 inverted flare nuts
- (1) 6' Long brake line with 3/8"-24 inverted flare nuts
- (2) 4-1/4' Long brake lines with 3/8"-24 inverted flare nuts
- (4) 18" Male/male rubber flex lines
- (1) 3/16" Brass T-fitting
- (2) 3/16" Brass union fittings
- (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-T1 Hydra Star Disc Brake Kit w/ Actuator for Tandem Axle Trailers - 13" Hub/Rotor - 8 on 6-1/2 - 7K
Customer Satisfaction Score:
80% were satisfied with this product
20% of customers were not satisfied
- Arrived Damaged
- Wrong item was ordered
- etrailer mistake
Customer Reviews
Hydrastar Disc Brake Kit w/ Actuator for Tandem Axle Trailers - 13" Hub/Rotor - 8 on 6-1/2 - 7K - HSE7K-T1
Average Customer Rating: 4.1 out of 5 stars (40 Customer Reviews)
Kit includes everything you need 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: Woody12/08/2022
I purchased and I installed the Hydrastar Disc Brake Kit HSE7K-T1 along with the Prodigy P3 brake controller on my 42'fifth wheel. As the saying goes "why did I wait so long" , I have been running them for a few months now, I wanted to get some miles and testing on the system before I commented so after several roads trips now about 4000 miles I am very pleased. They have worked flawlessly. I have always been on edge when towing, especially in the mountains with the old electric drum brakes. Now I have so much more confidence in stopping and that lifted so much stress off me. The old electric drum brakes just never felt as if they would stop the trailer especially in an emergency stop, but now if you apply the brakes hard you can feel the trailer stopping the truck. I have never been able to lock up the tires on the camper till now.
If you have a little mechanical knowledge the installation is not difficult as long as you plan things out and be patient.
I did have a few hiccups with shipping and a few parts but thanks to Robert all issues were addressed and corrected ASAP and parts were shipped out to me immediately. A special shout out to Robert which answered so many of my questions and helped me with ordering everything I needed to install my kit. etrailer has always been a pleasure to work with. I will never have an RV without Disc Brakes again. Thanks again to Robert and etrailer.
by: Terry01/23/2024
This kit was easy to install and our 37’ Montana stops much better than the electric drum brakes they install at the factory! They should put this type on all trailers over 10,000lbs!
by: Steven05/27/2021
I purchased the disc brake system for my 5th wheel to improve the braking. It has proved to be a great unit. We have put over 10K miles on the camper since installing the brakes and I will NEVER have another camper without disc brakes. The system is easy to install. The brake lines took a little planning and I was able to mount the actuator in a convent location and it works great.
Steven
5/28/2022
Very well
by: Dion H06/16/2020
Using on 2 out of 3 axles on dump trailer. Two days of use at less then half power setting of brake controller, working great. I added pictures of the install. I do not have pictures of control box mounted. I mounted it inside tool box on trailer.
Dion H.
6/18/2021
3 out of 4 calipers working great. One does not release right and eats up the pads fast and right into the rotor.
by: Dwayne05/21/2022
Third trip with trailer all 16 studs on right side sheared off lost both wheels, studs in the hubs are garbage, got no reply from etrailer regarding replacing damaged rotor, Chinese junk
Brooke M.
5/25/2022
Thanks for reaching out. I will have our customer service team reach out to you.
by: Michael04/10/2024
What a difference disc brakes make compared to drums. Highly recommend the upgrade. Works great.
by: Robert02/11/2021
These brakes work phenomenal. I would never rely on the original electric drum brakes that came on the trailer. It was a diy project and they sent everything I needed to complete the job. When the drum brakes need replacement I would definately go with this set. It stops so much better now and you can see the pads without having to disassemble the entire wheel.
by: Dave 01/21/2024
The box’s were in bad shape by the time I picked them up. You did a good job taping them up otherwise most of the small parts would have not been there. One of the brake lines was crushed. I will have to replace it
by: Bruce 09/26/2023
Best system I've ever had on a trailer..
by: Keith10/20/2021
Great powerful brake! With putting these on my 14k toyhauler i will never go back to the old 40 era drum brakes!!!
by: Lawrence 02/18/2023
I have no issues with the Hydra Star. The system works flawlessly, but the reservoir could use a sight gage.
The only issue was the packaging/shipping. I initially received shortages after two shipments, and then duplicate parts upon receiving the aforementioned parts shortage. Also, the initial shipment included calipers with two different styles of pads.
by: Brandt10/05/2022
I don't like the fact that you should not keep the brakes on while at stop light.
Also, having trouble with on board brake controller running it. 2020 GMC 2500HD will activate brakes once but if you let up a bit then step down, I have no trailer braking. Very dis-concerting.
Jenny N.
10/26/2022
You mentioned that you were not happy with the braking experience of the GMC with the actuator. The actuator of the HydraStar Disc Brake Kit w Actuator for Tandem Axle Trailers # HSE7K-T1 will maintain brake pressure as long as the brake controller is telling the actuator to maintain it, but what most brake controllers have is a function that after a certain amount of time with the brakes applied the controller stops sending voltage as it assumes you are at a stoplight. I am not sure if your OEM controller stops sending voltage if you let up a little and then reapply the brakes. As far as I know there is not a ready-made solution to change it.
by: John 12/11/2023
Great product.
by: Richard04/15/2023
Prompt delivery time but poor packaging-the items looked like used parts.several items were missing or damaged. etrailer promised to replace entire order.
by: Daniel 08/07/2021
Samuel was terrific helping me determine the best fit for my RV. Can't wait to have them installed. eTrailer is very responsive and knowledgeable. I recommend them to all RV owners!
Thanks to Samuel C!
Cheers
Dan
Daniel
8/8/2022
Great brake system
by: Cole 12/02/2023
Very help and quick delivery
by: Dennis S11/19/2022
Best improvement I've ever made on my 5th wheel... kit had everything to do the job
by: Ron 06/12/2021
This brake system has worked out great. Stops are quicker and more solid than the electric brakes. I did have trouble with one of the calipers. No matter what I did it wouldn’t go on. Luckily, the company that makes them is 20 miles from my house. I took the defective caliper to them and they swapped it out and I had it installed all within an hour and half. They told me they had a bad batch and I had received one. I know I could have had etrailer replace it, but my trailer was up on jacks and didn’t want to wait for the replacement. It all worked out fine. Thanks
by: Mike 10/04/2021
Replaced the drum brakes on my Heartland RV with HydrasStar disc brakes went on vacation out West for 4 weeks as we were coming off Teton Pass Informed Wife Best investment I have made on our rv.
by: Jeffrey 07/28/2022
Amazing difference in braking power! Rv drum brakes are junk by comparison!
by: Gary10/05/2022
received the kit. NO actuator, had to return what parts I had back.
by: Edward03/20/2021
After pne year and approximately 6,000 miles I'm very pleased with the brakes' performance. My tow vehicle and trailer feel as one umit when braking. The stopping distance considerably less. I haven't once had to say to myself "please stop" in a hard braking situation.
by: Ralph04/01/2022
Got my order today, no actuator that was to be in the kit HSE 7K-T1. Again I’m in a holding pattern.
Jenny N.
4/18/2022
I will have our Customer Service team reach out to you.
by: Ford 07/16/2021
One of the best upgrades we made to our 5th wheel camper.
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Show More Reviews
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- Parts Needed to Convert 2014 Open Range 388RKS to Disc BrakesSince we know your 2014 Open Range 388RKS has 7k axles on it with 1/2 inch wheel studs we do have a kit to convert it to disc brake with the Hydrastar part # HSE7K-T1. This basically just replaces your hub/drums with hub/rotors and comes with everything else needed to make the conversion including the best actuator which is known to be the most reliable and also very quick reacting.
view full answer... - Could HydraStar Disc Brake Kit Fit Featherlight Cattle TrailerAs long as your Featherlight cattle trailer has 7,000 lb trailer axles yes the HydraStar Disc Brake Kit part # HSE7K-T1 will fit and work great. If you have a different axle capacity let me know and I'll help come up with a solution.
view full answer... - Adding Disc brakes To A Fifth Wheel With 7K Axles With 6 on 5-1/2" Bolt PatternWe do recommend switching over to an 8 on 6-1/2" bolt pattern when adding disc brakes to a 7K axle. All of the 6 lug disc brake kits are going to be rated for 6K and under. For a full disc brake conversion I recommend the Hydrastar Conversion Kit # HSE7K-T1. This is a complete kit, so you get everything you will need to convert your 7K electric brake axles over to disc. This uses the # 25580 and # 14125A bearings which are basically standard for 7K axles. The only thing you will need...
view full answer... - Will 7,000lb HydraStar Disc Brake Conversion Kit Fit a 2021 Jayco Eagle 321RSTS W/ 6,000lb Axles?I would be happy to help! First things first 5,200 - 7,000lb axles are all compatible with the same hubs so you can use the HydraStar Disc Brake Kit w/ Actuator for Tandem Axle Trailers - 13" Hub/Rotor - 8 on 6-1/2 - 7K # HSE7K-T1 on your 2021 Jayco Eagle 321RSTS. I see you mentioned an HSE6K-T1 kit but HydraStar does not offer such a kit. The brake pads used are a bit different as they are designed for heavier trailers but they will still be OK. The biggest thing you need to check is...
view full answer... - Electric Drum Brakes To Hydraulic Disc Brake Conversion Kit For 7,000-lb AxlesThe best electric drum brake to hydraulic disc brake conversion kit we offer for 7,000-lb axles, is the HydraStar Disc Brake Kit w/ Actuator for Tandem Axle Trailers # HSE7K-T1. This kit has everything you need to switch your trailer's brakes to disc, and, includes the hub-and-rotor assemblies with bearings, races, and seals. You'll also need grease caps, you can use the Trailer Hub Grease Cap, 2.72" OD Drive In # RG04-100.
view full answer... - Are Calipers and Mounting Brackets for Hydrastar Disc Brake Kit Compatible With Other RotorsAccording to the fine folks at Hydrastar, any 13 inch diameter hub/rotor would work with the calipers and caliper mounting brackets. You'll want to make sure that the hub/rotor you use is compatible with the bearing set that your spindles use and that the hub rotor you use has wheel studs whose diameter is compatible with your existing wheels. I've linked to some product videos for the # HSE7K-T1 Hydrastar Disc Brake Kit.
view full answer... - Does HydraStar Disc Brake Kit Work With Lippert 7,000 lb AxleYes, your Lippert 7,000 lb axles are absolutely compatible with the HydraStar Disc Brake Kit with Actuator for Tandem Axle Trailers # HSE7K-T1. This kit is going to give you the best possible braking set up for your trailer, with the responsiveness of an electric trailer brake system and the stopping power of hydraulic disc brakes. I also recommend adding the Trailer Hub Grease Cap #TRU66FR if you have an E-Z Lube type axle. Additionally, if you don't have one you'll need a brake bleeder,...
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- Disc Brake Conversion Recommendation for 2017 Keystone Laredo 357BHFor your 2017 Keystone Laredo 357BH the best way to convert it to electric over hydraulic disc is the Hydrastar kit part # HSE7K-T1. This comes with everything needed except for oil caps for the hubs which you'd need to also get with the part # HYD27FR and you'd be set. This comes with the Hydrastar actuator which is widely considered to be the most reliable and quickest reacting actuator out there.
view full answer... - How do Hydrastar Disk Brake Actuator Kits Compare to Other BrandsThe Hydrastar electric over hydraulic actuators and disk brake components like the # HSE7K-T1 are the best in overall quality and performance. We've found that the Hydrastar systems are the fastest reacting and most reliable actuators so we recommend them very highly. The other brands tend to have more circuit board issues or won't like working with OEM brake controllers as much either. I attached a review video for this kit for more info on it as well.
view full answer... - Grease Recommendation for Hydrastar Disc Brake Kit # HSE7K-T1Sounds like you are asking for a grease recommendation to use with your Hydrastar kit part # HSE7K-T1. For that the best option is the LMX Red grease part # L11390 which comes in a cartridge for your grease gun. This is the most durable grease that is also the most compatible with other greases which is why we recommend it so highly.
view full answer... - Choosing Hydrastar Disc Brake Kit for 2017 Jayco North Point With 7k AxlesIt sounds like you're trying to decide between the # HSE7K-T1SO and the # HSE7K-T1 for your 2017 Jayco North Point. I recommend the # HSE7K-T1SO with the over-the-hub rotors for the cost savings. There is no real difference between the two aside from the design. Also, if something happens to a rotor you can just replace the rotor instead of the whole assembly. I'm assuming you have a hub and drum assembly on there already for your brakes so you will also need idler hubs instead. For replacement...
view full answer... - If you Put 12 Volts on Brake Output Circuit Should Trailer Brake Assemblies Make NoiseIf you connect 12 volts to the blue wire of your trailer wiring you should hear the brake magnets click and then hum. If you aren't hearing that you have a wiring problem which is most likely a bad ground or a short on the blue wire. If you also add the white wire as a ground that would also troubleshoot that. You'd want to go over the wiring to see if you can find anything that's an obvious problem and fix as needed.
view full answer... - Hydrastar Disc Brake Kit for 2020 Grand Design Solitude 310GKRHey Nick, so your life will be easier if you stick with a disc brake setup that allows you to keep your current wheel stud size since that wouldn't require you to get new wheels. So if you are sure you have 9/16 inch wheel studs the part # HSE7K-T1 would not be the kit to go with. So instead you would want to go with the part # CAR-HBA16-2 which covers the actuator and the lines and electrical parts and then for hub/drum the part # KOD28FR for each axle.
view full answer... - How to Tell if HydraStar Disc Brake Kit Will Fit 7K AxlesThe HydraStar Disc Brake Kit w/ Actuator for Tandem Axle Trailers # HSE7K-T1 will definitely fit on your trailer per the specs that you gave. The only thing that you'll need to double check is the stud size that your trailer wheels mount to. This kit has 1/2" studs so if that's what your current trailer uses you'll be good to go!
view full answer... - HydraStar Disc Brake Kit with Actuator for 16 Inch WheelsThe HydraStar Disc Brake Kit w/ Actuator for Tandem Axle Trailers - 13" Hub/Rotor - 8 on 6-1/2 - 7K # HSE7K-T1 will work well for your 16 inch wheels. The manufacturer doesn't specify wheel size compatibility so that is why it is missing in the cross-reference for fit. The 10 Inch rotors fit 13-15 inch wheels and the 13 inch rotors of this system fit 16 to 17-1/2 inch wheels. They are a great choice for your application.
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view full answer... - Disc Brake Conversion Kit for 2019 Keystone Montana 5th WheelI can get the parts from that video but what I don't know 100% is the bolt size on that brake kit. Based on our own installation video I believe it is the 1/2". It is also worth noting that the brakes are designed for 7k axles with # 25580 inner and # 14125A or # 02475 outer bearings. For the brake kit it is one of the following: -DeeMaxx Disc Brake Kit - 13" Hub/Rotor - 8 on 6-1/2 - Maxx Coating - 1/2" Bolts - 7K # DE53YR -DeeMaxx Disc Brake Kit - 13" Hub/Rotor - 8 on 6-1/2 - Maxx Coating...
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- Recommended Trailer Brake Conversion to Oil Bath Disc BrakesTo convert your 7K #42 axle from drum brakes to hydraulic disk brakes with wet bearings I recommend the HydraStar Disc Brake Kit w/ Actuator for Tandem Axle Trailers - 13" Hub/Rotor - 8 on 6-1/2 - 7K # HSE7K-T1. The 10-10 Grease or Oil Double-Lip Seals - Qty 2 # RG06-090 will work with the Oil Cap Kit - 21-40 # RG04-260. This is the best option for your conversion.
view full answer... - Recommended Disc Brake Conversion Kit for Trailer with 7K AxlesThe HydraStar Disc Brake Kit w/ Actuator for Tandem Axle Trailers part # HSE7K-T1 is my recommendation for a disc brake conversion kit that will fit trailers with 7K axles. It's an all inclusive kit meaning it comes with everything you'll need to make the swap. It also has an integrated hub/rotor design which is easier to install and cuts down on the total number of parts.
view full answer... - Best Parts to Install Disc Brake Kit on Fuzion Toy Hauler with 7k Trailer AxlesFor a trailer with tandem 7k axles like your Fuzion Toyhauler we have the HydraStar Disc Brake Kit w/ Actuator for Tandem Axle Trailers # HSE7K-T1 which comes with the best braking components and the best disc brake actuator as well as all of the brake lines needed to complete the install. It's a really convenient kit that covers everything needed for your trailer. I attached an install video for you to check out as well.
view full answer... - Parts Needed To Upgrade to Hydrualic Disc Brakes On Tandem 7,000LB Trailer AxlesWhile the 12" Brakes # AKEBRK-6 are going to be sufficient for stopping your trailer the best option is to upgrade to a hydraulic set of disc brakes. The Disc Brakes will run cooler as they do not hold heat like drum brakes ensuring your brakes work when needed. The Hydrastar Disc Brake Kit # HSE7K-T1 will contain nearly everything you will need to convert to the stronger disc brakes. It includes new rotor/hubs with bearings, grease seals, calipers, brake lines, mounting hardware and a...
view full answer... - Recommended Conversion Kit for Disc Brakes On 7,000 Lb Dexter AxlesThe best electric drum to hydraulic disc brake conversion kit we offer for a trailer with tandem 7,000 lb axles is the HydraStar Disc Brake Kit with Actuator for Tandem Axle Trailers part # HSE7K-T1. This is a complete kit that has everything you need so no extra trips to the store or waiting for things to arrive online. It comes with the hub/rotors, calipers, mounting brackets, brake lines, actuator, and other other hardware and fittings needed. Just add brake fluid and you're done.
view full answer... - Is Integrated Brake Controller of 2016 Ram 2500 Compatible with Hydrastar ActuatorThe integrated brake controller of a 2016 Ram 3500 is compatible with the Hydrastar brake actuators like what comes with the kit part # HSE7K-T1 that you referenced.
view full answer...
Do you have a question about this Trailer Brake?
Info for this part was:
Expert Research:
Mike L
Expert Research:
Jameson C
Edited by:
Lindsey S
Installed by:
Kathleen M
Video by:
Dustin K
Video Edited:
Chris R
Updated by:
Wilson B
Updated by:
Michael B
Updated by:
Noah M
Updated by:
Manda E
Test Fit:
David F
Written by:
Kristina F
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Woody K.
12/10/2023
The Hydrastar disc brake kit that I installed is working great and flawlessly, I would not pull another large rig without disc brakes. I have not had any problems with these products since the installation, no adjustments and no leaks. I just upgraded my suspension to the Road Armor equalizer and wet bolt kit and now have piece of mind with the disc brakes and other suspension upgrades. Very satisfied with all the eTrailer products and their outstanding support team.