Hydrastar Marine Electric Over Hydraulic Actuator w/ Breakaway and 7-Way RV Harness - 1,600 psi
(56 reviews)
Price: $875.28
Hydrastar Marine Electric Over Hydraulic Actuator w/ Breakaway and 7-Way RV Harness - 1,600 psi
Item # HS381-9067
Retail:$935.95
Our Price: $875.28
You Save: $60.67
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Hydrastar Brake Actuator - HS381-9067
- Electric-Hydraulic Brake Actuator
- Disc Brakes
- Hydrastar
- 1600 psi
Vented, marine-grade aluminum electric-hydraulic actuator lets you use your brake controller (sold separately) to activate your trailer's hydraulic disc brakes. Includes wiring, 7-way harness, and breakaway. Brake lines sold separately.
Features:
- 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
- Included 7-way trailer connector transmits 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
- Electronic, proportional pressure valve ensures that braking is smooth and effective
- 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
- Built-in bleeder screw on actuator lets you easily flush air out of your brake lines
- Durable extruded aluminum construction provides superior corrosion resistance
- Marine-grade gasket and stainless steel hardware make actuator ideal for marine use
- Breakaway system activates your trailer's brakes if the trailer disconnects from the tow vehicle
- Battery charger ensures the system's battery is always charged
- Weather-resistant polymer case is top loading for easy access from above
- Built-in mounting bracket offers simple installation
- Insulated 7-way, RV-style trailer connector is molded to protect wires and terminals
- Weatherproof, corrosion-resistant 7-pole junction box protects wires, eases installation, and makes diagnostics simple
- Ring terminals and butt connectors included for connecting wiring
- Wire loom protects wiring from the elements and allows wires in and out along any point of the loom for easy installation
- Mounting pads have adhesive backing for securing cable ties
- Kit includes:
- Hydrastar marine electric-over-hydraulic actuator (Model MHBA-16)
- Breakaway system
- 7-Way trailer connector
- 7-Pole junction box
- 6' Split wire loom
- 4 Mounting pads
- Mounting and wiring hardware
- DOT compliant
- Made in the USA
Specs:
- Application: single-, tandem-, or triple-axle trailers with disc brakes
- Maximum output pressure: 1,600 psi
- Power: 12V DC
- Hydraulic port size: 3/16"
- Actuator dimensions: 11-3/4" long x 3" wide x 7-3/8" tall
- Actuator wire configuration:
- Black: 12-volt power
- Blue: brake controller
- Yellow: breakaway
- White: ground
- Battery capacity: 5 amp-hours
- Breakaway battery case dimensions: 5-7/16" long x 4-1/4" wide x 4-1/4" tall
- Battery dimensions: 3-7/8" long x 3-1/2" wide x 2-11/16" tall
- Breakaway switch lead wire length: 7-1/2"
- Trailer connector length: 6'
- Trailer connector wire gauges:
- Black/white: 10 gauge
- Blue: 12 gauge
- Brown/red/green/yellow: 14 gauge
- Junction box dimensions: 6-3/4" long x 3-1/2" wide x 2-1/4" tall
- Split wire loom length: 6'
- 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
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 stainless steel hardware. The included 7-pole junction box with color-coded studs makes it simple to splice into your trailer's wiring and to connect the provided 7-way trailer connector. Once the actuator is correctly wired, you can connect your trailer's hydraulic brake lines to the 3/16" female port. Lines and fittings are sold separately.
Durable, Marine-Grade Construction
The Hydrastar Marine actuator is ideal for use on boat trailers. Just like other Hydrastar electric-over-hydraulic actuator models, this system is built of extruded anodized aluminum for superior corrosion resistance. The weathertight seals protect internal components from the elements. The Hydrastar Marine actuator also features marine-grade gaskets and stainless steel hardware that won't rust. These extra features make it perfect for marine applications.
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.
Breakaway Kit
Required by law in most states, a breakaway system will activate your trailer's brakes in the unlikely event that your trailer disconnects from your tow vehicle. This kit wires to the included battery and to the Hydrastar actuator. If your trailer separates from your tow vehicle, the breakaway kit signals the actuator to apply the brakes.
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.
| Manufacturer | Vehicle Years/Controller Models | Compatible | Compatible if Used with HBA-CAM | |
|---|---|---|---|---|
| Vehicles | Ford | 2005-2006 | Yes | |
| 2007-2008 | No | Yes | ||
| 2009-2015 | Yes | |||
| Dodge | 2010-2015 | Yes | ||
| GMC/Chevy | 2007-2018 | No | Yes | |
| Brake Controllers | Draw-Tite | Activator (5100) | Yes | |
| Activator II (5500 or 5510) | Yes | |||
| Activator III (5520) | Yes | |||
| Activator IV (5504) | Yes | |||
| Hayes | Energize 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 | |||
| Hopkins | Impulse Digital (47325) | Yes | ||
| Insight (HM47297) | Yes | |||
| Brake Force (47225) | No | |||
| Reliance (47284) | No | |||
| Agility (47294 or 47295) | No | |||
| Maxbrake | Brake Controller | Yes | ||
| Redline | Redline TA900 | Yes | ||
| RedlineTA900A | No | |||
| RedlineTA1000 | No | |||
| RedlineTA1100 | No | |||
| RedlineTA1200 | No | |||
| Tekonsha | Prodigy (90185) | Yes | ||
| Prodigy P2 (90885) | Yes | |||
| Prodigy P3 (90195) | Yes | |||
| Primus IQ (TK90160) | No | |||
| PowerTrac (39523) | Yes | |||
| Voyager (39510 or 9030) | Yes | |||
| Valley | VA32812 Blackbird | Yes | ||
| VA32811 Phantom | Yes |
381-9067 Cargo Towing Solutions (formerly Carlisle) Hydra Star Marine Surge Brake Conversion Kit - 1600 psi - Model MHBA-16-CON
Customer Satisfaction Score:
99% were satisfied with this product
1% of customers were not satisfied
- Did not arrive in time
- Wrong item was ordered
Customer Reviews
Hydrastar Marine Electric Over Hydraulic Actuator w/ Breakaway and 7-Way RV Harness - 1,600 psi - HS381-9067
Average Customer Rating: 4.7 out of 5 stars (56 Customer Reviews)
Vented, marine-grade aluminum electric-hydraulic actuator lets you use your brake controller (sold separately) to activate your trailer's hydraulic disc brakes. Includes wiring, 7-way harness, and breakaway. Brake lines sold separately.by: Paul I02/25/2024
The reason for 4 stars is in photo 1, the junction box is by far the cheapest and worst junction box I have ever had the pleasure of putting together, and I have installed many of them. My local suppliers junction boxes make this junction box look well let the imagination roam on this one, TERRIBLE. Again the break away setup in my opinion is sub par, not well built, though which break away system now a day's is they are all cheap. The 7 way harness as well is sub par, I have hand built better. The actuator, very interesting and a little different, not to sure about the quality, only time will tell, it does seem to be working and working well at this point. Stops trailer and tow vehicle on just trailer brakes alone, impressive.
by: Will H.08/22/2023
Only have taken one test drive, but it is so much better than surge brakes. No more slamming during takeoff. Much stronger than my surge setup. The install was straight-forward using the video and other folks pictures. I stole the stand idea from one of the other users here and it worked very well. I chose to drive bolts through the tongue to lock the existing actuator into place after removing the guts of it. This is because the tongue on my trailer is 3.3" wide and I would have had to get a new tongue welded on. This seems to do as good of a job with much lower cost. My only complaints are with the electrical box. It seems I received a much cheaper one that was shown in the videos. The bus snapped in instead of screwing/rivet and it kept popping out. The entire box cracked during the install, so I threw it out and bought another one from a local shop. Additionally, I didn't get the full compliment of connectors, instead they were already installed on the cable. The problem is I didn't need 8ft of cable, so I had to cut those off and go get other connectors. All in all, I am very happy with the EOH system vs surge and I would buy this again and again.
by: Brian G08/18/2017
It took a lot longer to install the unit than I thought, and I am mechanically and electrically competent. Being there is no mounting hardware I had to purchase several bolts and fasteners to securely attach everything to my trailer. The color coding on the wire from the plug is not standard with anything. I found out the hard way and had to rewire the lights, brakes, and signals. After two days of constructing and installing the bracket and unit, I finally got to test it. It works great so far and much smoother and controllable than my old surge coupler. etrailer promptly sent everything in a strong box and it arrived in only a few days to Alaska from the date I placed my order. Great so far!
by: Phillip04/28/2021
The product seems to be of high quality. Easy to lay out and with some referring back to blueprints it was easy install . My biggest problem was wire color did not match. But a trouble light solved the equation . 2019 boat trailer I didn’t know there were different color codes . Still took a few hours to do it right. Pulled the boat 125 miles each way from home to lake and was pleasantly surprised at the steady brake response . So much better than surge brakes .
by: Patrick10/26/2023
Rating this as a kit. Hydrastar actuator works great. Junction box that comes with the kit is garbage and they could save everyone a lot of time by including enough ring terminals, screws, and a couple extra sections of 12 gauge wire.
by: Michael02/16/2024
great system, easy install, works so much better than surge systems
by: Michael04/15/2023
Item must have been dropped one of the mounting brackets was bent and I had to straighten it out.
by: R.F. Craig, Colorado03/07/2024
I live in the mountains and the hitch actuator brakes create so much heat and don't get a chance to release going down mountain slopes / fire hazard. I removed the actuator hitch and welded a Bulldog hitch on. I wanted to keep my disc brakes on the boat trailer and installing the Hydrastar system is the only way to do that. The Hydrastar is a awesome system for electrical and braking hydraulics which gives you full control of trailer braking. That is a peace of mind, knowing your trailer brakes will not get hot uncontrollably to the point of a fire. Hydrastar system works great and the best purchase I ever did for boat trailer braking. It is controlled with the brake controller in the vehicle cab and when applied, the pump on the Hydrastar will put out plenty of PSI and will down right shut everything down - even without using the vehicle brakes applied (just testing it). The boat alone weighs 6500 lbs. loaded with fuel etc. I Highly, highly recommend this system and was enjoyable and easy to install.
by: John09/26/2020
Awesome product. Would buy again and again. Easy set up. Bought this with kodiac disk brakes. I have a triaxle snowmobile trailer and also bought their triaxle line kit. Easy to install. Only problem was trailer wiring did not match up with the supplied plug. The plug was correct not the trailer. Easy fix though. Only other problem was 100% my fault. The disk brakes DO NOT come with bearings. They should. Would have saved me having to order them. Local auto supply shops did not not have six bearings and seals. If you have a drum brake trailer I would buy this just asap. Hit the truck brakes and the trailer stopped the truck. Had to reduce the power to the trailer. Slide the trailer brake lever and all six tires smoke.
by: Frank 07/30/2022
took a while to get but worth the wait this is the 3 one of these I have used on my boat trailers
by: Kyle 09/07/2023
I have been very pleased with the price, quality and service our company has received from trailer.
by: Peter 10/19/2023
Lori B Took my order on Monday afternoon and the product was at my house on Wednesday. After it is installed I'll review the product itself.
by: Gavin Pitcher02/07/2023
right after the warranty expired the electronics inside went out. The unit only lasted for six trips. Will be looking at other brands.
by: Bill 04/11/2023
Installation was straight forward and system worked better than anticipated
by: Pat M11/18/2016
Etrailers catalogue provided a complete & accurate description of the 8 items purchased. Placing the order by phone was fast & efficient. Items arrived within 4 working days, no tax no shipping charge. Professional all around.
Pat M.
11/21/2017
The EOH braking system works perfectly. You are my supplier of choice ifwhen I need additional trailer parts on the future.
by: Michael 09/23/2019
I waited several months after the purchase to write a review. This was a great addition to my boat trailer and worth every cent. I have driven hundreds of miles this year with the trailer and this product does make a huge difference with trailer stopping power and control. I tow a 24ft cabin cruiser on the interstate with crosswinds and semi-trucks that would cause the trailer to sway a little, it was very convenient and reassuring to able to engage the trailer brake to help that out the sway in the trailer. The video provided a lot of help and was easy to follow. Install took a couple of hours, the hardest thing was finding a brake line connector in stock from the local auto parts stores. Plus this makes bleeding the brakes super easy too!
by: Rich11/17/2021
I bought this for a my boat trailer for launching in the winter time with slick boat ramps. Works great. I was in 4wd low backing down the ramp touched my breaks and started to slide down the ramp. I squeezed the over ride lever on my brake controller and the weight of the boat on the trailer stopped me. Did this a few times to launch the boat.
by: Tim07/01/2021
I installed this on my dual axle boat trailer, my boat weighs approximately 4000 lbs. I tow my boat to the coast a lot and we have a lot of 10% grades. This product has made my boat way easier to control and makes me feel extremely safe. I had surge brakes that were terrible, I boiled my brake buddies several times and over heated my brakes on my truck as well. The product was simple to install as well, I highly recommend anyone towing a large boat to install one thank you etrailer.
by: Benjamin01/25/2018
Product works very well, much better than surge brake system. Package arrived well packed. Have used etrailer numerous times, always great results!
Wallace B.
1/25/2019
Working great, fine product
by: Sven01/21/2020
Awesome system. As described and makes trailering my 12k boat easy. Will never have a trailer without this system.
Make sure you check your brake lines and caliper seals. This system works great and will find weak point in your system if you have one.
Install was also easy, great video available for install!
by: Rollie R05/27/2021
I've had the Hydrastar system on my trailer now for over a year now with now issues. The brakes work much better than they did before. Easy installation and great service from etrailer
by: David06/11/2019
This is great. Easy to install. I put mine in a trailer box to help secure it better just incase. I immediately noticed a huge difference over the surge brakes.
I also pull a 5th wheel and wanted the same braking system on my boat trailer.
Highly recommend.
by: Todd09/30/2022
Very good product. I own a trailer repair service and have used these actuators several times. If I owned my own boat, I would certainly install
by: Martin07/08/2019
The product was great, arrived in a timely manner and was complete. The installation video from etrailer.com was spot on and really well made. My only negative is that the self tapping screws which come with the kit are absolute garbage almost every one of them broke off and the heads are really too small for the size of the holes in the actuator. Recommend you drill and tap each hole and install stainless hardware toss the self tapper in the trash.
by: Larry parker 07/24/2019
Breaking system works extremely well weather I'm pulling my dozer or empty can stop on a dime but recently have a condenser put on my truck and now my fine adjustment is messed up but that not the system
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view full answer... - Which Disc Brake Conversion Kit For 10000lb Dexter Axle Made In 2020For your 10000lb Dexter oil bath axle made in 2020 you will need to go with the Kodiak Disc Brake Kit # K2R1058D11E since your axle uses leaf springs, and is not a torsion axle. This will work with dual 16" wheels so you will need to make sure that is what your trailer currently uses. You will need to use Dexter Axle Oil Hub # 008-430-03 for each spindle to allow you to install the above kit unless you already have idler hubs. For an actuator to control these new disc brakes I recommend...
view full answer... - Recommended Electric Over Hydraulic System for Boat TrailerUnfortunately, I can't find any information on the bolt hole mounting locations on your Tie Down model 125 actuator. So, I've linked the page to our 2 inch and 2-5/16 inch hitch ball couplers that are bolt on so you can see what will fit your measurements. Each of our product descriptions should tell you the distance between the mounting holes. If you want to send me your measurements and trailer weight, I'd be happy to give you a recommendation. For your EOH brakes, I recommend the...
view full answer... - Which Disc Brake Kit is Needed to Convert 2006 Big Tex Gooseneck TrailerDue to the age of your 2006 Big Tex gooseneck trailer the kit you need to convert your axle to disc brakes is the part # K2R1058D11HD since this kit fits Dexter axles made prior to 2009. Then for an actuator kit the best option is the part # HS381-9067 as it gives you the most reliable and quickest reacting kit plus all of the electric components needed as well.
view full answer... - Disc Brake Kit Recommendation for Converting Electric Brakes to Disc Brakes on 8k AxleFor your 8k capacity oil-bath hubs the Kodiak kit part # K2HR89DD would be what you need. This will replace the hub/drums you have with rotor/hubs and the mounting brackets will attach to the mounting flanges you have. Then for a kit that includes the best actuator, a breakaway kit, and wiring you'd want the Hydrastar part # HS381-9067.
view full answer... - Selecting the Correct Hydrastar EOH Actuator When Converting Triple Axle Surge Disc Brakes As you are converting your surge trailer with disc brakes you will want to go with the Hydrastar Marine Electric Over Hydraulic Actuator w/ Breakaway and 7-Way RV Harness # HS381-9067. This kit will include the junction box to run your wiring, a breakaway kit and the correct actuator. The 1,000psi Hydrastar # HBA-10 is for single or tandem axle trailers up to 7,000lbs GVWR with drum brakes. The 1,200psi Hydrastar # HBA-12 is for trailers using drum brakes over 8,000lbs GVWR with up to...
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Info for this part was:
Expert Research:
Mike L
Expert Research:
Michael H
Expert Research:
Jameson C
Expert Research:
Adam R
Edited by:
Lindsey S
Installed by:
Jeff D
Installed by:
Randy B
Video Edited:
Joshua S
Video Edited:
Kathleen M
Updated by:
Wilson B
Updated by:
Manda E
Written by:
Amanda M
Test Fit:
Brent H
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Frank
8/2/2023
Working great Much better braking than Surge brakes