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

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

SKU
by Hydrastar
$950.00 - $950.00
$950.00
$859.00
$859.00 - $859.00
$859.00

The GEN 8 delivers up to 1,600 PSI of electric-over-hydraulic braking pressure — faster response, shorter stopping distance, and full DOT compliance. Works with disc and drum brakes on 1–3 axle trailers. Compatible with all factory and aftermarket brake controllers out of the box. No CAM adapter required.

1,000–1,600 PSI
1–3 Axles
2 YR Warranty
DOT Compliant
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
What You Need to Know

Key Features & Specs

EOH Actuator
  • ✓Sealed, fully enclosed extruded anodized aluminum housing (not cast or plastic)
  • ✓Reliable 12 V DC operation with solid-state electronics
  • ✓Designed for both Drum and Disc Brake applications
  • ✓Color-coded, heavy duty 12 Gauge wire (Black/Constant power, Blue/Brake controller, White/Ground, Yellow/Break-away)
Compliance & Certifications
  • ✓Complies with CFR-393 Federal Braking Requirements
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 Construction: Features a durable, sealed, and fully enclosed extruded anodized aluminum housing case, designed to withstand environmental and road conditions effortlessly (not made from cast or plastic materials).
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2-Year Limited Warranty: Offers peace of mind with a 2-year limited warranty from the date of purchase.
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Regulatory Compliance: Adheres to CFR-393 Federal Braking Requirements and aligns with all Department of Transportation (D.O.T.) regulations, ensuring legal and safe operation.
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Versatile Compatibility: Engineered for both Drum and Disc Brakes, it operates reliably on 12 V DC with 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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Easy Installation: Comes with color-coded, heavy-duty 12 Gauge wire for a straightforward and rapid installation process (Black for constant power, Blue for the brake controller, White for ground, Yellow for break-away).
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Customizable Length: Includes a 2 ft. wire, providing ample length to suit any installation requirement.
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Brake Fluid Requirement: Requires the use of D.O.T. 3 or 4 Brake Fluid for optimal performance (fluid not included).
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Universal Trailer Configuration: Compatible with any trailer setup from 1 to 3 axles, offering flexibility in application.
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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.

Built, Not Cast

Extruded anodized aluminum housing. Fully sealed. Not cast metal or plastic.

Reverse Without Lockout

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

Specifications

Technical Details

Type Electric Over Hydraulic (EOH)
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
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.
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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