1. Brake Actuator
  2. Hydrastar
  3. Electric-Hydraulic Brake Actuator
  4. Disc Brakes
  5. 1600 psi
HydraStar Electric Over Hydraulic Actuator for Disc Brakes - 1,600 psi

HydraStar Electric Over Hydraulic Actuator for Disc Brakes - 1,600 psi

Item # HBA16
lowest price pledge
Our Price: $778.73
You Save: $161.26
Brake Actuator
This item qualifies for Free Shipping
Shipping Weight: 12 lbs
In Stock
HBA16 - 1600 psi Hydrastar Electric-Hydraulic Brake Actuator
zoom in icon
slider vertical icon
zoom out icon
Comment field cannot be left empty.
Name field cannot be left empty.

Thank you! Your comment has been submitted successfully. You should be able to view your question/comment here within a few days.

Error submitting comment. Please try again momentarily.

Product Images

In Use/Installed

Customer Photos

Need help with installation?
Locate installers near me
Anodized aluminum electric-hydraulic actuator lets you use your brake controller (sold separately) to activate your trailer's hydraulic disc brakes. Vented end plate releases heat. Hydraulic lines and breakaway sold separately. Call 800-298-1624 to order Hydrastar brake actuator part number HBA16 or order online at etrailer.com. Free expert support on all Hydrastar products. Guaranteed Lowest Price and Fastest Shipping for HydraStar Electric Over Hydraulic Actuator for Disc Brakes - 1,600 psi. Brake Actuator reviews from real customers.
  • All Info
  • Reviews (102)
  • Q & A (385)
  • Photos
  • Why etrailer?

Hydrastar Brake Actuator - HBA16

  • Electric-Hydraulic Brake Actuator
  • Disc Brakes
  • 1600 psi
  • Hydrastar

Anodized aluminum electric-hydraulic actuator lets you use your brake controller (sold separately) to activate your trailer's hydraulic disc brakes. Vented end plate releases heat. Hydraulic lines and breakaway sold separately.


  • Electric-over-hydraulic brake actuator activates your trailer's hydraulic brakes when you apply the brakes in your tow vehicle
    • Brake controller (sold separately) is required to send signal from tow vehicle to actuator when brakes are applied
    • 7-Way trailer connector (sold separately) is needed to transmit signal from brake controller
  • Improved functionality when compared with surge brake couplers
    • Faster response time - trailer brakes are triggered when you apply brakes in tow vehicle, as opposed to when trailer pushes against hitch ball
    • No need to manually lock out brakes when you back up
    • Trailer brakes can be intentionally activated when you reverse
    • Manual override on brake controller can be activated so you can engage the trailer brakes without having to apply your vehicle brakes
  • Vented end plate releases pressure, moisture, and heat in order to protect the internal components
    • Allows actuator to be mounted in places where most actuators would overheat
  • Electronic, proportional pressure valve ensures that braking is smooth and effective
  • Built-in bleeder screw lets you easily flush air out of the brake lines
  • Durable extruded aluminum provides corrosion resistance
  • Compatible with any standard, 5-amp-hour-battery breakaway kit (sold separately)
  • DOT compliant
  • Unit installs on trailer frame and connects to trailer's wiring and hydraulic brake lines (sold separately)
    • Mounting hardware not included
  • Made in the USA


  • Application: single-, tandem-, or triple-axle trailers with disc brakes
  • Maximum output pressure: 1,600 psi
  • Power: 12V DC
  • Hydraulic port size: 3/16"
  • Dimensions: 11-3/4" long x 3" wide x 7-3/8" tall
  • Wire configuration:
    • Black: 12-volt power
    • Blue: brake controller
    • Yellow: breakaway
    • White: ground
  • 2-Year limited warranty

Note: Do not power wash the HydraStar actuator or take it through a commercial car wash. High-pressure water may damage the seals on the actuator.

The HydraStar electric-over-hydraulic trailer brake actuator applies pressure to your trailer's hydraulic brake system in response to the electrical signals sent from your in-cab brake controller. As a result, your trailer's hydraulic brakes will be activated every time you apply the brakes in your vehicle or press the manual override on your controller.

Pair the HydraStar electric-over-hydraulic actuator with your trailer's disc brakes to get the best possible braking setup. With disc brakes, you already have more consistent braking at higher speeds and a shorter stopping distance than you'd get with drum brakes. In addition to more reliable braking, you also have less cost to maintain the brakes as there are fewer moving parts. Combine these benefits with an electric brake controller and you'll get greater control over your already superior brakes, providing you with the best braking performance.

HydraStar Electric-Over-Hydraulic Actuator vs. Standard Surge Brake Actuators

With the HydraStar electric-over-hydraulic actuator, you can get all the benefits of towing with an electric brake controller while using hydraulic brakes. Because this actuator will activate according to the settings you have chosen for your brake controller (sold separately), you will have more control over when and how your trailer brakes engage. Depending on the features of your brake controller, you may be able to control both the rate and intensity with which your trailer's brakes activate. You can also use the manual override on your brake controller, which allows you to engage the trailer brakes without having to apply the brakes in your vehicle. And perhaps most impressive, if you have a proportional brake controller, your brakes will be activated with an intensity that matches the braking speed and power of your rig.

This pump-and-motor-based system increases response time compared with traditional actuators because the trailer brakes are triggered when you apply the brakes in the tow vehicle, as opposed to when the trailer pushes against the hitch ball. This not only gives you faster, more efficient braking, but it also eliminates the pushing sensation that occurs in setups that use standard surge brake actuators.

HydraStar actuators are also beneficial because, unlike standard surge couplers, they allow you to activate your brakes when reversing down an incline, such as a boat ramp. Having the ability to brake in reverse gives you more control and prevents wear on your tow vehicle.

HydraStar Installation

Hydrastar Installation Diagram

This HydraStar electric-over-hydraulic brake actuator will give you years of trailer-stopping performance. The actuator mounts on your trailer's frame with the included hardware. Then it splices into the trailer's wiring and connects to your hydraulic brake lines from the 3/16" female port. Lines and fittings are sold separately.

Durable Construction

Just like other HydraStar electric-over-hydraulic actuator models, this system is built of extruded anodized aluminum for excellent corrosion resistance. In addition, the weathertight seals protect internal components from the elements.

This actuator also has a vented end plate that releases pressure, moisture, and heat to help prevent any internal damage. Unlike models that are unable to release heat and pressure, this vented actuator can be safely mounted inside of a compartment on your trailer. As a result, this actuator is great for gooseneck and fifth-wheel trailers where finding space on the tongue can be nearly impossible.

Brake Controller Compatibility

Not all electric trailer brake controllers will work with this electric-over-hydraulic brake actuator. See the following table to determine compatibility with common models of brake controllers. For best performance, it is recommended that you use an aftermarket electric brake controller rather than an OEM factory-installed controller.

ManufacturerVehicle Years/Controller ModelsCompatibleCompatible if Used with HBA-CAM
Brake ControllersDraw-TiteActivator (5100)Yes
Activator II (5500 or 5510)Yes
Activator III (5520)Yes
Activator IV (5504)Yes
HayesEnergize III (81741B)Yes
Energize III+ (HA81742B)Yes
Energize XPC (HA81745)Yes
Engage (HA81760)Yes
G2 Brake Boss (81792BB)Yes
Syncronizer (HA81725)Yes
Endeavor (81770)Yes
Genesis (HA81790)Yes
Blackbird (HA81726)Yes
HopkinsImpulse Digital (47325)Yes
Insight (HM47297)Yes
Brake Force (47225)No
Reliance (47284)No
Agility (47294 or 47295)No
MaxbrakeBrake ControllerYes
RedlineRedline TA900Yes
TekonshaProdigy (90185)Yes
Prodigy P2 (90885)Yes
Prodigy P3 (90195)Yes
Primus IQ (TK90160)No
PowerTrac (39523)Yes
Voyager (39510 or 9030)Yes
ValleyVA32812 BlackbirdYes
VA32811 PhantomYes

HBA-16 Cargo Towing Solutions (formerly Carlisle) Hydra Star Electric-Over-Hydraulic (EOH) Brake Actuator

Replaces V381-7067

Installation Details HBA16 Installation instructions

Customer Reviews

HydraStar Electric Over Hydraulic Actuator for Disc Brakes - 1,600 psi - HBA16

Average Customer Rating:  4.8 out of 5 stars   (102 Customer Reviews)

Anodized aluminum electric-hydraulic actuator lets you use your brake controller (sold separately) to activate your trailer's hydraulic disc brakes. Vented end plate releases heat. Hydraulic lines and breakaway sold separately.

- HBA16

I have a 2015 GMC Sierra 2500HD Diesel, towing a 2017 Pinnacle 36FBTS 5th. wheel. The Pinnacle has a standard drum braking system. On a long trip this year I cracked both rotors on my truck from over heating related to the Pinnacle's drum brakes failing to fully provide proper stopping. I decided no more, and after much review I replaced the factory drum brakes with the Kodiak Discbrake system. (my first time ever doing something like this) In addition, one of the key items for me was a way not to replace my on-board factory trailer brake controller, (did not want to use an aftermarket product, that would diminish the interior look ) thus I also added the control Adapter Module that enabled me to use the factory installed brake controller. With all this change I decided to also go ahead and add a separate brake away battery. Everything I just described are shown in the attached photos. I found eTrailer extremely helpful in answering questions, although I did not have a lot of questions since their online videos proved most helpful. All parts of the Kodiak system worked fantastic following a 2500 mile trip. The improved braking is superior, and I did not need to replace my on board controller, but continued to use it by installing the control adapter. The disc brake picture is one of the disc brakes that I examined following our trip...all in perfect shape with everything working great for the entire trip.

Working great as well as it did since installation
Morris G - 07/26/2021

- HBA16

I installed this product on my fifth wheel RV about a year ago. I tow with a f350 drw truck and was always concerned with the way it stopped. Now there are no issues. Best upgrade I have ever made. Product was excellent. Product arrived as promised. customer service was great. Thanks etrailer

- HBA16

Ordered the HBA16 to install on 2013 Dutchmen Rubicon 2900 TH with 7K Lippert axles, feeding the Kodiak Disc Brakes also purchased from etrailer. Unit was received with out any problems, installed and worked as advertised. The only real issue I had was prior to the order finding out for sure if this Actuator would work on my 2014 F-350 with or without the HBA-CAM. Once I received the HBA-16 the documents that came with it from Cargo Towing solutions provided me with another resource to verify what my truck would need. I contacted Nick Ruehlman with Cargo Towing Solutions and he assured me the HBA16 would work on 2014 F-350's with built in controller without the HBA-CAM. Installation was done by a brake tech and went in without any problems. etrailer customer support was very helpful in completing this project. Brakes are outstanding now that the electric's disc's are out.

The HBA16 is still performing well after 5K miles. Great product.
LarryD - 09/15/2015

- HBA16

I've towed my boat over 4000 miles this year and the electric over oil brakes have performed better than anticipated. The safety and control that I have with this system could not be better.

Henry S - 09/23/2021

- HBA16

I've been using this brake controller with a disc brake conversion I got from Kodiak Trailer Brakes for about a year and the results have been fantastic. Prior to doing the disk conversion, I'd been through about 3 sets of the old electric drum brakes on my 18,000 lb. dual axle toy hauler and I'll never use drums again. The stopping distance is noticeably shorter and I anticipate the maintenance to be super simple since they are discs. The electric controller takes some getting used to since there's about a 1-1.5 second delay between hitting the pedal and the brakes engaging. That can be a little unnerving until you get used to the fact that when the brakes come on, the REALLY come on. After owning my toy hauler for ~10 years, this is easily the most important modification I've done. I will be stripping off brand new drum brakes on my next trailer and replacing them with discs before even the first trip.

- HBA16

The HydraStar unit worked fine, easy to install and hook up. I hauled several 10 ton loads of hay with no problems, after replacing a brake controller that was defective, I got another controller that was supposed to be compatible with electric/hydraulic brakes but wasn't, a newer one of the same model was compatible. E-Trailer lived up to their slogan, great products,low prices and they have good service too.

- HBA16

Couldn't be happier with this brake system along with my Kodiak disc brakes. System works perfect.

Love love this brake system, going to put one on my other trailer I’m restoring.
Eddie - 07/01/2019

- HBA16

I have put three on these on different trailers and they work great!! They install easily and stop on a dime!! I highly recommend the purchase of the optional HBA-CAM. All the newer trucks can be a little tempromental with the intergrated brake control box. I have an "09" GMC 3500HD

Thanks for your business and your review, Chris! For your reference, the # HBA-CAM
HydraStar Electric Over Hydraulic Actuator Adapter Module for Ford and Chevy Brake Controllers
is a required rather than optional add-on for 2007-2015 Chevy and GMC trucks and will not work with the OEM factory-installed brake controller.
-- Etrailer Expert Laura E - 05/31/2017

- HBA16

It was the best upgrade for a new brake system I was replacing the old electric brake!

- HBA16

I have been towing 5th wheel trailers since 1992 with electric drum brakes and finally switched to electric/hydralic brakes after I don't know how many close calls while towing loads. I wish I would have done it a lot sooner, I cannot believe the braking ability I hope never to own anything else. Great customer care during the process.

- HBA16

This is a solid well built unit. Great screen makes it really easy to read. Lots of configuration options to tune it just the way you like it. Comes with extra parts for various mounting uptiond. I purchased a wiring harness specifically for my vehicle to make things nice and easy. Love this controller.

- HBA16

Kodiak disk brakes on a 95 EBY stock trailer. Made a real trailer out of it... JK...

- HBA16

I just received eoh trailer brake actuator. I will be installing it soon on my triaxle boat trailer, packaging is in good condition, so the actuator should work as intended. Service is outstanding as usual, shipping was excellent. If the Canadian dollar was i stronger i would certainly make more purchases from E-trailer. Thank you

The actuator worked great last year traveled over 5000 miles with it. As of late last fall my boat was stored on my trailer and because of covid19 the marina here on the east coast of Quebec wont open for another 6 weeks. The actuator was wrapped in plastic to protect it from the harsh winter here close to the ocean. I expect and need it work as it my trailer has to be certified road worthy to pull it on the public hwy. I will give you an up date in a couple of months. thks
Michael - 05/09/2020

- HBA16

product showed up on time in working order, but was aesthetically damaged, the mounting tabs were bent and scratched ,it wasn't during shipping because the box was undamaged , so i would return it as its going on a 75k $ dollar polo trailer but my customer needs it asap the free shipping was nice , but would have gladly paid more for an undamaged actuator.

David - 04/22/2020

- HBA16

I purchased the HydraStar Electric over hydraulic actuator for disc brakes. I have been very happy with this purchase. Product arrived very quickly . Instructions were clear and installation went smoothly. Brake system is working great for me on my equipment trailer.

Unit it working well. I am very happy and satisfied with this unit. Thank you
Billy K - 08/28/2018

- HBA16

Very well assembled and top quality. Not excessive in size and fits easily in trailer. Extremely easy hookup and straight forward to do using instructions. Wired into existing break away and 12v RV battery'

Always works. Extra bonus was when I realized I could pull the release pin and hook up the fifth wheel without pushing the trailer up on the chocks or wheel lock so much.
Albert - 04/06/2020

- HBA16

I was amazed at the excellent and quick responses I got from the team at trailer. I was spending a significant amount of money and have some good brake (ASE) credentials although I have been retired for years I was a little apprehensive at making the change. Bottom line is the conversion from RV electric brakes to electric over hydraulic disk brakes went well and it works as I had hoped. Thanks to all who helped me.

My brakes are working just as expected and hoped for. The real good news and the thing I remember about this project was how helpful the trailer folks were.
Roger F - 11/29/2017

- HBA16

High quality product that is far superior to an all-electric braking system. Provides peace of mind while trailering my boat trailer.

- HBA16

I have taken a trip from Mich to the black hills and back. Put around 3000 mi. On the fifth wheel since I converted it to hydraulic brakes. The hydrastar actuator worked great as well as th he kodiak brakes. I wish I would have converted it long before now. Hydrastar and Kodiak is the only way to go

- HBA16

I changed out my electric drum brakes on my Montana fifth wheel with this hydraulic brake actuator and Kodiak discs rotor system . What a difference this new brake system has made. I can now lock down the trailer tires if needed and drive much more relaxed on the highway knowing I can stop on a dime.

- HBA16

Replaced an original Hydrastar with a new one. Works great on my 28 ft triaxle boat trailer with disk brakes.

- HBA16

The Kodiac Disk brakes teamed with the Hydrastar Actuator should be a must for those towing with a concern for safety. The stopping distance is amazing compared to the standard electric surge braking systems. The initial cost outlay will pay for itself if it prevents an accident where deductibles are involved and the downtime. The complete installation of the system was actually quite easy if you are mechanically inclined and set aside the time to do it properly.

- HBA16

Excellent service and a great product at a great price.

- HBA16

Placed Hydrastar Actuator in my 2005 Mobile Suites that has electric over hydralic brake system and the integrated brake controller on my newly purchased 2017 Ram 3500 Cummins worked perfectly. I am totally satified with the Hydrastar and recommend to everyone having problems with compatibilty problems with integrated braking systems on Ford, GMC or Ram to call E trailer, they will resolve your issue.

- HBA16

I had them set me up with everything I needed for the trailer and it worked out perfectly. Look up what exactly as shown in their videos and works great. I wish I had done this years ago in my trailer. Fantastic product and great service

Show More Reviews

Ask the Experts about this Hydrastar Brake Actuator

  • Solution 2019 GMC Sierra 2500 with Integrated Brake Controller and Electric Over Hydraulic Brake
    What we've found is that the factory brake controllers don't work as consistently with electric over hydraulic brakes like the Hydrastar part # HBA16 that you have even when they are supposed to. Some setups work totally fine, others are intermittent, and other not at all. The adapter part # HBA-CAM would take care of the issue but I'd rather you go with a P3 brake controller part # 90195 as it's 100 percent reliable with EOH brakes and there would be no risk of them not working reliably....
    view full answer...
  • HydraStar Actuator HBA16 Compatibility on 2020 GMC Truck with Integrated Brake Controller
    Yes! The Hydrastar Electric Over Hydraulic Actuator for Disc Brakes # HBA16 will work with the integrated brake controller on 2018 and newer GMC Trucks. 2017 and older GMC trucks require the HydraStar Electric Over Hydraulic Adapter Module # HBA-CAM to be compatible with the factory brake controller.
    view full answer...
  • Should Titan Model 10 Surge Brake Actuator Be Locked Out Or Replaced For EOH Brakes?
    The HydraStar Electric Over Hydraulic Actuator for Disc Brakes - 1,600 psi # HBA16 you were looking at is the correct Electric Over Hydraulic actuator for the disc brakes on your tandem axle boat trailer. You can lock out your Titan Model 10 surge brake actuator by having it welded which will cause it to not allow the inertia of the trailer to activate the brackets. Since your trailer has a bolt on coupler it would be easier to replace the coupler with a standard coupler like the...
    view full answer...
    Image 1 for
  • Does the Factory Brake Controller in a Ram 3500 Need An Adapter to Work with EOH Brakes
    I called HydraStar who is a prominent manufacturer of electric over hydraulic brake actuators and they said the issue that you are having is caused by a compatibility error between the factory integrated brake controller and your electric over hydraulic brake actuator. Therefore, you will need to use an adapter. Please also make sure that you are in the electric over hydraulic mode if that is an option. In order to recommend the correct adapter I will need to know what electric over hydraulic...
    view full answer...
  • Recommended Electric Over Hydraulic Brake Actuator For Trailer With Disc Brakes
    I have another option for you, but there is not a electric over hydraulic actuator that will fit inside of your Titan Model 10 Surge Brake Actuator. You will need to install the electric over hydraulic actuator somewhere else on your trailer. For an electric over hydraulic actuator I recommend the HydraStar Electric Over Hydraulic Actuator for Disc Brakes - 1,600 psi # HBA16 which will work with the disc brakes you currently have on your trailer, but will allow you to control the braking...
    view full answer...
  • Is the HydraStar Electric Over Hydraulic Actuator Adapter Required for 2019 GMC 3500
    The HydraStar Electric Over Hydraulic Actuator for Disc Brakes - 1,600 psi # HBA16 you have installed will not require the HydraStar Electric Over Hydraulic Actuator Adapter Module for Ford and Chevy Brake Controllers # HBA-CAM with your 2019 GMC 3500. The 2018 and newer models are directly compatible without the adapter.
    view full answer...
  • Is HydraStar Electric Over Hydraulic Brake Actuator Compatible with 2019 Ford F-250
    Yes, the integrated brake controller of your 2019 Ford F-250 is compatible with electric over hydraulic actuators like the HydraStart part # HBA16 that you mentioned.
    view full answer...
  • How to Power an Electric Over Hydraulic Brake Actuator
    A brake controller such as the Tekonsha Prodigy P3 Trailer Brake Controller part # 90195 will need to receive power from the vehicle's battery. If you are referring to a brake actuator like the HydraStar Electric Over Hydraulic Actuator for Disc Brakes part # HBA16 then yes as long as the breakaway switch has a separate battery which it should then you can run the power to the actuator using the breakaway switches battery.
    view full answer...
  • What is Needed to Convert a Trailer with Surge Brakes to Electric-Hydraulic Brakes?
    There are going to be a few parts required for you to convert your trailer from a surge system to use an electric over hydraulic actuator. The first thing, obviously, will be the actuator itself; I recommend going with the HydraStar Electric Over Hydraulic Actuator for Disc Brakes, # HBA16, which is the most popular option we have due to it's reputation for being reliable. You are also going to need a brake controller that is compatible with an electric over hydraulic actuator, if you...
    view full answer...
  • Can Hydrastar Electric Over Hydraulic Brake Actuator be Used with 2018 Chevy Silverado
    Yes, the HydraStar part # HBA16 actuator is compatible with the integrated brake controller of your 2018 Chevy Silverado 2500HD. The # HBA-CAM would not be needed nor would you need to replace your controller with an aftermarket one.
    view full answer...
  • Which Electric Over Hydraulic Trailer Brake Actuators are Compatible with DOT 5 Brake Fluid
    The Dexter Electric over Hydraulic Brake Actuators, part # K71-650 for drum brakes or # K71-651 for disc brakes are compatible with DOT 5 brake fluid. Neither Titan nor Cargo Towing Solutions recommend using DOT 5 brake fluid in their actuators. The product page for each of the Dexter EOH actuators includes a table that shows which OEM and aftermarket brake controllers are compatible.
    view full answer...
  • How to Provide a 25-40 Amp Power Source for the HydraStar Actuator HBA16
    Here is what you will want to do. Since your 12 volt accessory circuit is only rated for 20 amps you are going to want to run a 10 gauge wire like the part # 10-1-1 (sold by the foot) from the positive battery post of your vehicle through a 40 amp circuit breaker like part # 9510 to the 12 volt accessory circuit of your truck so that you would have a circuit rated high enough for the # HBA16.
    view full answer...
    Image 1 for
  • Hydrastar Actuator HBA-16 Compatibility with OEM Trailer Brake Controller
    The OEM trailer brake controllers in some model year Ford trucks are not directly compatible with electric-over-hydraulic (EOH) trailer brake actuators like the Hydrastar # HBA16 and will require either use of adapter # HBA-CAM or an aftermarket brake controller like the Prodigy P3 # 90195. However, the OEM controller in your 2012 F-350 pickup WILL work fine with the HydraStar EOH actuator without need for the # HBA-CAM adapter. If you scroll down on the page for the # HBA16 you will...
    view full answer...
  • Parts Needed to Convert 10 Dexter Axles to Disc Electric Over Hydaulic
    We can definitely help, but can you get me the brand of your axles on your trailer and what year you think they were made? Looking for disc brakes or drum? With that info I can get you set up with everything you'd need for sure.
    view full answer...
  • Bypassing Factory Brake Controller (ITBC) on 2017 Ram 3500
    Even after they've been out for more than 10 years, we continually hear complaints from folks about the factory integrated brake controllers on their trucks. We never seem to hear "I love it, it works great!" From what I understand, the factory brake controllers have a power adjustment that allows you to increase or decrease the intensity of the braking force and a manual switch that applies the trailer brakes independently of the truck brakes. That's it, no further adjustments are possible. If...
    view full answer...
  • Recommendation for Routing Triple Axle Brake Line Kit
    The easiest solution I may have for you would be to use a triple axle brake line kit like the # 20TR-BLKIT or # 24TR-BLKIT and route everything like the picture I attached.
    view full answer...
    Image 1 for
  • Best Electric Over Hydraulic Brake Actuator for Trailer Disc Brakes
    We prefer the Hydrastar Actuator part # HBA16 as it is the most reliable and works the best. This would be the best option for your trailer. We have the least amount of issues with this actuator and it is the one our installers like the most so we recommend it the highest. For a tandem axle brake line kit that uses rigid lines except for the lines that attach to the assemblies you would want the part # DM5425. Or if you wanted a kit that has the lines, a breakaway kit, and the actuator...
    view full answer...
  • Parts Needed To Convert Hydraulic Brakes To Electric Over Hydraulic Brakes Towed By 2019 Ram 3500
    Dan, it is possible to convert your trailer's hydraulic disc brakes to electric over hydraulic brakes easily. The conversion requires an electric over hydraulic actuator, break away kit and a brake controller. An electric over hydraulic system gives you the stopping power of hydraulic with the quick response time of electric brakes. Since you already have the hydraulic braking assemblies replacing the brakes is not needed. For an electric over hydraulic actuator I recommend HydraStar...
    view full answer...
  • Wiring Installation for the HydraStar Electric Over Hydraulic Actuator for Disc Brakes # HBA16
    If you have 12V power to the pin in the 1 o'clock position on your 7-Way (see attached picture) then that is all that is needed to supply power to the HydraStar Electric Over Hydraulic Actuator for Disc Brakes # HBA16. You will need a fully functioning 7-Way on your 2005 Dodge Ram 3500 so that you can utilize a brake controller, like part 90195, to activate the HydraStar. If you check out the attached photo you can see that the brake controller signal will show up on the pin in the 5 o'clock...
    view full answer...
    Image 1 for Image 2 for
  • Parts Needed to Convert a Surge Disc Brake Trailer to an Electric Over Hydraulic Setup
    If you currently have disc brakes on your trailer and are looking to convert to an electric over hydraulic setup you don't have to replace the brakes as long as they are working properly. All you really need to do is disconnect the brake line that plugs into your surge brake actuator and then plug it into an electric over hydraulic actuator like the Cargo Towing # HBA16, wire it up properly, and then bleed the brakes and you would be good to go. Your surge brake actuator will need...
    view full answer...
  • Is GM OEM Brake Controller Compatible with HydraStar Electric over Hydraulic Brake Actuator # HBA16
    Even though our experience tells us that aftermarket controllers are typically more reliable than the OE controllers, if the factory brake controller on your 2007+ GM truck is functional it is not necessary to disable it in order to use a generation 6 or newer HydraStar Electric/Hydraulic trailer brake actuator like the # HBA16 you mentioned. You would simply need to use the Control Adapter Module, part # HBA-CAM. The adapter module will allow your factory controller to work with the Carlisle...
    view full answer...
  • Hydrastar HBA16 Actuator Troubleshooting Not Working with Dodge Integrated Brake Controller
    Sounds like you have an integrated brake controller installed in your 2012 Ram 3500. While this controller SHOULD work with the HydraStar # HBA16 we have found that the integrated controllers are a bit more finicky than the aftermarket ones. They just don't seem to reliably work with the EOH systems even when they say they will. The best solution I can make would be to install a P2 # 90885 that will work with the Hydrastar. You can try using the adapter part # HBA-CAM as that might work...
    view full answer...
  • Compatibility of Trailer Brake Controller with HydraStar EOH Brake Actuator
    To have the brakes in your 2016 Ford F-350 Super Duty activate your trailer's electric-over-hydraulic (EOH) brakes your in-cab brake controller must have an operational setting specifically for EOH systems. The better aftermarket brake controllers such as the Prodigy series from Tekonsha, the P2 # 90885 and the P3 # 90195, include the EOH option in their main menu screens. This type of actuator, such as the Hydra Star # HBA16, requires an EOH-compatible brake controller since the electrical...
    view full answer...
  • Troubleshooting Brake Controller and EOH Actuator that Stay Active with No Brake Pedal Contact
    In a trailer brake controller installation the wire on the controller that takes in the input signal from the vehicle's brake light switch is the red wire. When this wire has a 12V signal on it the controller will send a trailer brake signal out on its blue output wire that goes to the EOH actuator. The strength of the output signal depends on your chosen power and boost settings. Since you are seeing both the brake controller and the actuator misbehaving in the same way this tends to...
    view full answer...
  • Brake Controller Compatibility with EOH Trailer Brake Actuators
    Some trailer brake controllers, including many factory-installed models, will not work with an electric-over-hydraulic type trailer brake actuator like the Hydrastar # HBA16. EOH actuators like this present a very different electrical load to the brake circuit than a typical electric drum brake and some brake controllers simply won't work. Others can be made to work with an electrical adapter like # HBA-CAM. You will want to confirm that the controller you are using has an EOH setting...
    view full answer...
  • Is Integrated Brake Controller of 2018 Ram 3500 Compatible with Electric Over Hydraulic Actuator
    HydraStar states that their part # HBA16 will work with the integrated brake controller of a 2018 Ram 3500 like you have. That said, we've found that integrated controllers are pretty hit or miss with electric over hydraulic actuators so I'm not totally surprised you are having an issue. You could try using the adapter part # HBA-CAM which normally allows integrated controllers to work with the actuator, but best option is bypassing the controller and using one that is compatible reliably...
    view full answer...
  • How Much Pressure Does an Electric Over Hydraulic Trailer Brake Actuator Put Out
    The maximum for disc brakes and the Carlisle actuator # HBA16 is 1600 psi. If you are looking for a drum brake actuator then use # T4822500. Drum brakes require less pressure, 1000 psi maximum. The Titan actuator reaches full psi pressure in 1.3 seconds. It ramps it up from the minimum amount of pressure that brakes require up to that maximum. The pressure in the lines is going to be different and it depends on several factors like the brake line size and length and the amount of brake...
    view full answer...
  • Adapter for Allowing Ford Integrated Brake Controller to Recognize Electric Over Hydraulic Actuator
    Most newer truck manufacturers have made their integrated brake controllers compatible with electric over hydraulic actuators like the Hydrastar # HBA16 that you mentioned but we have found that it's not always consistent that they will work without issue. Best solution we have for you would be to use the adapter part # HBA-CAM which is designed for integrated Ford brake controllers like you have. Once installed your truck will recognize that a trailer is connected.
    view full answer...
  • Breakaway Battery Kit Needed for HydraStar Actuator on Triple Axle Trailer
    Unless your state requires a 9AH battery you actually only need a 5AH battery for a HydraStar EOH actuator. For example, the HydraStar # HBA16 which is rated for disc brakes is compatible with a 5AH breakaway battery kit. Since you need a breakaway battery kit that is compatible with up to a triple axle trailer I recommend the Tekonsha # 50-85-313 because it has a built-in charger, is a top load so it's easy to read, comes with a test button, and is DOT compliant. I have attached an...
    view full answer...

Do you have a question about this Brake Actuator?

  • Why etrailer.com?

    At etrailer.com we guarantee:
  • Highest quality brake actuator for the best price.

    Our Lowest Price Pledge ensures you will never overpay for the parts you need.
  • Real product know-how.

    We make sure that the products we sell are what we say they are, and that they work the way they are supposed to work. Get real advice from a real person who has the knowledge and expertise needed to solve your problem.
  • Most detailed, accurate brake actuator information available.

    Because we take providing accurate product information seriously, we take our own detailed product photos, demo videos and installation videos, as well as verify measurements, instructions, and vehicle fit information.
  • Installations, made easy.

    We love helping people and have the most highly-trained customer service, hands-on experience, step by step videos and installation instructions.
  • Fast shipping.

    Your order is automatically routed to get out of our warehouse and to your door as quickly as possible. Receive free shipping on orders over $99.
  • Personalized service for life.

    We provide one-on-one, personalized service from the ordering process through the life of your product.
  • Trusted since 1946.

    We've been serving customers since our parts store first opened in 1946 and continue to be recognized by our customers, our vendors and third parties for exceptional service.
  • Returns Policy

    Need to return an item? No problem. Please read our Returns Policy for more information.

Info for this part was:

Employee Mike L
Expert Research:
Mike L
Employee Michael H
Expert Research:
Michael H
Employee Jeff D
Expert Research:
Jeff D
Employee Reno H
Expert Research:
Reno H
Employee Jameson C
Expert Research:
Jameson C
Employee John H
Expert Research:
John H
Employee Brandon M
Expert Research:
Brandon M
Employee Adam R
Expert Research:
Adam R
Employee Jeffrey L
Expert Research:
Jeffrey L
Employee Raymond P
Written by:
Raymond P
Employee Joshua S
Video Edited:
Joshua S
Employee Jacob T
Video Edited:
Jacob T
Employee Kathleen M
Video Edited:
Kathleen M
Employee Chris R
Video Edited:
Chris R
Employee Adele M
Updated by:
Adele M
Employee Laura H
Updated by:
Laura H
Employee Wilson B
Updated by:
Wilson B
Employee Amanda M
Updated by:
Amanda M
Employee Matthew E
Updated by:
Matthew E
Employee Dustin K
Video by:
Dustin K
Employee Aidan B
Video by:
Aidan B
Employee Brent H
Installed by:
Brent H
Employee Conner L
Test Fit:
Conner L
Employee David F
Test Fit:
David F

At etrailer.com we provide the best information available about the products we sell. We take the quality of our information seriously so that you can get the right part the first time. Let us know if anything is missing or if you have any questions.