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Marine Hydrastar® GEN 8 Electric Over Hydraulic (EOH) Trailer-Mounted Brake Actuator - Hydrastar

Marine Hydrastar® GEN 8 Electric Over Hydraulic (EOH) Trailer-Mounted Brake Actuator

SKU
by Hydrastar
$850.00 - $850.00
$850.00
$850.00 - $850.00
$850.00

Marine-rated GEN 8 actuator built for boat trailers that go in the water. Sealed anodized aluminum housing with stainless hardware, EPDM gaskets, and a vented end plate rated for submersion. Delivers up to 1,600 PSI for disc and drum brakes on 1–3 axle trailers.

1,000–1,600 PSI
1–3 Axles
2 YR Warranty
MARINE Rated
American Flag Made in the USA
Which PSI Do I Need? Select From Dropdown Below
1600 PSI Disc brakes Most applications — recommended
1200 PSI Heavy-duty drum brakes 7K+ lb axles
1000 PSI Standard drum brakes Under 7K lbs
Not sure? Disc brakes or converting to disc = 1600 PSI. Call (812) 655-4544
Questions about fitment?

Feel free to reach out to us or start a live chat in the bottom right corner for assistance.

Additional Details

Specifications & Compliance

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The Hydrastar® Electric Over Hydraulic (EOH) brake actuators lead the industry not only in ease of installation but also in compliance with all Department of Transportation (D.O.T.) braking requirements. Designed to significantly enhance stopping performance, Hydrastar® is the choice for trailers transporting horses, cars, construction, and farm equipment, ensuring the highest level of braking safety with the industry's fastest response time.
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Robust Housing: Features a durable, sealed, and fully enclosed extruded anodized aluminum case, designed to endure environmental and road conditions effectively (not made from cast or plastic).
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Warranty Coverage: Includes a 2-year limited warranty from the date of purchase, offering peace of mind.
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Regulatory Compliance: Meets CFR-393 Federal Braking Requirements and adheres to all Department of Transportation (D.O.T.) regulations, ensuring legal and safe operation.
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Versatile Brake Compatibility: Optimized for both Drum and Disc Brakes, with dependable 12 V DC operation and solid-state electronics for consistent performance. The GEN 8 model is also compatible with all factory in-dash controllers and does not require additional controller adapter modules.
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Installation Simplified: Comes with color-coded, heavy-duty 12 Gauge wire for a swift and easy installation process (Black for constant power, Blue for the brake controller, White for ground, Yellow for break-away).
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Sufficient Wiring Length: Provides 2 ft. of wire, offering ample length for customization needs on any job.
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Fluid Requirements: Designed for use with D.O.T. 3 or 4 Brake Fluid, enhancing system efficiency and safety (fluid not included).
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Flexible Configuration: Compatible with trailers of any configuration with 1-3 axles, ensuring a broad application range.
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Faster Response Time: The new GEN 8 model is equipped with E-boost, to provide end users with an even faster response time.
Why It's Better

The Only EOH Actuator That Works With Every Controller

Instant Response

12V DC pump fires the moment your brake controller sends a signal. No surge delay.

No CAM Needed

The only EOH actuator universally compatible with every brake controller. No adapter modules.

Saltwater Sealed

Stainless hardware, EPDM gaskets, and vented backing plate. Built for submersion at the boat ramp.

Reverse Without Lockout

Electric control means brakes stay disengaged when backing up. No lockout pin needed.

Specifications

Technical Details

Type Electric Over Hydraulic (EOH) — Marine Grade
Max Pressure 1,600 PSI (also available: 1,200 & 1,000)
Brakes Disc and drum
Axles 1–3 axles, any configuration
Housing Extruded anodized aluminum, sealed, stainless hardware, EPDM gaskets
Dimensions 11-3/4" L x 3" W x 7-3/8" H
Power 12V DC, solid-state electronics
Hydraulic Port 3/16"
Wire 12 AWG, color-coded — Black (power), Blue (controller), White (ground), Yellow (breakaway)
Fluid DOT 3 or DOT 4. Do not use DOT 5.
Controllers All factory in-dash & aftermarket — no CAM required. *Verify with your controller manufacturer that it is EOH compatible.
Compliance DOT · CFR-393 Federal Braking Requirements
Warranty Actuator: 2 years · Brakes & components: 3 years
Origin Made in the USA — Greendale, Indiana
What You Get

In The Box & Sold Separately

Included
✓ GEN 8 EOH brake actuator
✓ 12 AWG wiring harness
✓ Mounting hardware
✓ Installation guide
Sold Separately
– DOT 3 or DOT 4 brake fluid
Common Questions

Before You Buy

Do I need a CAM (Controller Adapter Module)?+
No. The GEN 8 works with all factory and aftermarket brake controllers without any adapter. This is the only EOH actuator on the market with universal compatibility.
Can I submerge it at the boat ramp?+
Yes. The marine actuator is sealed for submersion during launch and retrieval.
Is the buzzing noise normal?+
Yes. That’s the pump building and holding pressure. Completely normal.
How do I bleed the system?+
Start at the furthest caliper. Open the bleeder, pump DOT 3 through until no air bubbles. Work toward the actuator. Two full passes.
What fluid does it use?+
DOT 3 or DOT 4. Do not use DOT 5 — silicone fluid will damage the seals.
Documentation

Manuals & Resources

Technical Manual ↗
Installation & service guide
Electrical Diagrams ↗
Wiring schematics
Compatibility Chart ↗
Vehicle & controller reference

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

Need Help Choosing?
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