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Collection: Electric Over Hydraulic Trailer Brakes

Electric Over Hydraulic Trailer Brakes

Introduction

Upgrade your trailer with the superior stopping power of electric over hydraulic trailer brakes. Trailer Spares Online stocks one of Australia's largest ranges of premium electric over hydraulic brake systems, hydraulic brake components and replacement parts from trusted brands including AL-KO, Hydrastar, Dexter, DeeMaxx and LoadForce.

Whether you're upgrading a boat trailer, caravan, horse float, enclosed trailer or heavy equipment trailer, electric over hydraulic brakes provide smoother, more responsive braking than traditional electric drum brakes while delivering outstanding performance in both highway and marine environments.

Our range includes electric over hydraulic brake actuators, stainless steel and Dacromet hydraulic brake calipers, hydraulic brake rotors, brake pads, hydraulic brake lines, breakaway systems and complete brake conversion components to help you build or upgrade a reliable braking system.


What Are Electric Over Hydraulic Trailer Brakes?

Electric over hydraulic (EOH) trailer brakes combine the precision of an electric brake controller with the stopping power of hydraulic disc brakes.

When you apply the brakes in your tow vehicle, the electric brake controller sends a signal to the electric over hydraulic actuator. The actuator instantly generates hydraulic pressure and delivers brake fluid through the hydraulic brake lines to the calipers, applying even braking force to every wheel.

Compared with traditional electric drum brakes, electric over hydraulic systems provide:

  • Faster brake response
  • Smoother proportional braking
  • Improved stopping performance
  • Better heat dissipation
  • Excellent corrosion resistance when fitted with stainless steel components
  • Reduced maintenance
  • Superior performance in marine environments

For many trailer owners, an electric over hydraulic braking system is one of the best upgrades available for towing safety and braking confidence.


Why Choose Electric Over Hydraulic Brakes?

Electric over hydraulic trailer brakes are ideal for:

  • Boat trailers
  • Caravans
  • Horse floats
  • Car trailers
  • Plant trailers
  • Enclosed trailers
  • Heavy-duty tandem and tri-axle trailers

They provide:

✔ More predictable braking

✔ Less brake fade

✔ Better control during emergency braking

✔ Reduced maintenance

✔ Excellent performance in wet and saltwater environments

✔ Compatibility with modern electric brake controllers


Choose the Right Electric Over Hydraulic Actuator

Choosing the correct actuator is one of the most important decisions when upgrading your trailer braking system.

AL-KO iQ7

The AL-KO iQ7 is one of Australia's most advanced electric over hydraulic brake actuators. Designed specifically for Australian conditions, it delivers smooth, intelligent braking performance and integrates with modern proportional brake controllers.

Ideal for:

  • Premium boat trailers
  • Caravans
  • Heavy trailers
  • Frequent towing

Hydrastar

Hydrastar actuators are recognised worldwide for their reliability and braking performance. They are a popular choice for heavy trailers, commercial applications and American trailer conversions.

Ideal for:

  • Heavy-duty applications
  • Commercial trailers
  • Frequent long-distance towing

Dexter Electric Over Hydraulic Actuators

Dexter actuators are trusted throughout North America and are commonly used when upgrading imported American trailers or replacing existing Dexter systems.

Ideal for:

  • Imported trailers
  • Existing Dexter braking systems
  • Trailer brake conversions

Complete Your Hydraulic Brake System

A complete electric over hydraulic braking system consists of more than just an actuator.

Trailer Spares Online also stocks:

  • Hydraulic brake calipers
  • Stainless steel brake calipers
  • Dacromet brake calipers
  • Hydraulic brake rotors
  • Brake pads
  • Hydraulic brake line kits
  • Brake fluid
  • Breakaway battery systems
  • Bleeding kits
  • Mounting hardware

Purchasing compatible components together helps ensure reliable braking performance and simplifies installation.


Why Buy From Trailer Spares Online?

Trailer Spares Online supplies premium trailer braking components to customers throughout Australia.

When you shop with us you'll benefit from:

  • Genuine AL-KO, Hydrastar, Dexter, DeeMaxx and LoadForce products
  • Australia-wide delivery
  • Large range of trailer braking components
  • Expert technical advice
  • Replacement parts and complete braking solutions
  • Products suitable for both DIY installations and professional workshops

Whether you're replacing worn components or building a complete electric over hydraulic braking system, we're here to help you choose the right parts for your trailer.


Frequently Asked Questions

What is an electric over hydraulic trailer brake system?

An electric over hydraulic trailer brake system uses an electric actuator to generate hydraulic pressure, applying hydraulic disc brakes in response to signals from your electric brake controller.

Do I need an electric brake controller?

Yes. Electric over hydraulic actuators are designed to operate with a compatible electric brake controller installed in the tow vehicle.

Are electric over hydraulic brakes better than electric drum brakes?

For many applications, electric over hydraulic disc brakes provide smoother braking, improved stopping performance, better heat dissipation and lower maintenance requirements.

Which actuator should I choose?

The right actuator depends on your trailer weight, braking system and intended use. Trailer Spares Online stocks AL-KO, Hydrastar and Dexter electric over hydraulic actuators suitable for a wide range of trailers.

Are stainless steel brake calipers worth it?

For boat trailers and marine environments, stainless steel calipers offer excellent corrosion resistance and long service life.

Can I upgrade my existing trailer to electric over hydraulic brakes?

In many cases, yes. Many trailers can be upgraded using compatible electric over hydraulic actuators, hydraulic disc brakes and associated components. The correct parts depend on your existing axle, hub and braking configuration.

46 products
  • LoadForce TA300 Trojan‑Style Hydraulic Brake Caliper – Stainless Steel Piston
    LOADFORCE TROJAN STYLE BRAKE CALIPER WITH S/S PISTON - R&M Trailer SparesTA300
    TA300
    Regular price
    $199.00
    Sale price
    $199.00
    Unit price
    per 
  • AL‑KO iQ7 XTREME Automatic In‑Car Kit – P/N 355013A, Auto‑Detect Controller
    AL - KO IQ7 XTREME IN CAR KIT Automatic - R&M Trailer Spares355013A
    355013A
    Regular price
    $650.00
    Sale price
    $650.00
    Unit price
    per 
  • DeeMaxx 12″ Integral Ventilated Hub/Rotor – Maxx Coated, 6K Rating (P/N RTR/HUB‑120‑MAXX)
    DEEMAXX 12 INCH INTEGRAL Brake Rotor - R&M Trailer SparesRTR/HUB - 120 - MAXX
    RTR/HUB-120-MAXX
    Regular price
    $209.00
    Sale price
    $209.00
    Unit price
    per 
  • AL-KO IQ7 Pressure Bleed Gun Kit – P/N 350045
    AL - KO IQ7 Bleed Gun Kit - R&M Trailer Spares350045
    350045
    Regular price
    $149.00
    Sale price
    $149.00
    Unit price
    per 
  • Breakaway Battery Kit – 9 Ah with Box & Switch (Dexter-Compatible)
    Breakaway Battery Kit 9 AMP - R&M Trailer SparesHBA - BAT - 9
    HBA-BAT-9
    Regular price
    $145.00
    Sale price
    $145.00
    Unit price
    per 
  • Dexter DB‑35 Caliper – Dacromet Finish with Stainless Piston (RHS or LHS)
    Dexter DB‑35 Dacromet Brake Caliper with Handbrake – Corrosion - Resistant - R&M Trailer SparesX089 - 135 - 23
    X089-135-23
    Regular price
    $215.00
    Sale price
    $215.00
    Unit price
    per 
  • DeeMaxx 12″ Dacromet Ventilated Rotor – 6‑Stud 5.5″ Bolt Pattern (6,000 lb Axle)
    DEEMAXX 12 INCH Dacromet Ventilated Brake Rotor - R&M Trailer SparesRTR - 120 - MAXX
    RTR-120-MAXX
    Regular price
    $135.00
    Sale price
    $135.00
    Unit price
    per 
  • DeeMaxx 11″ Ventilated Slip‑On Rotor – 5×114.3 mm Ford Pattern, Maxx Coated (P/N RTR‑109‑MAXX)
    DEEMAXX 11 INCH VENTILATED Brake Rotor - R&M Trailer SparesRTR - 109 - MAXX
    RTR-109-MAXX
    Regular price
    $99.00
    Sale price
    $99.00
    Unit price
    per 
  • LoadForce 500 ml DOT 4 Grade 3 Brake Fluid
    Loadforce Brake Fluid 500ml - R&M Trailer SparesBF500
    BF500
    Regular price
    $15.00
    Sale price
    $15.00
    Unit price
    per 
  • LoadForce Aluminium Brake Caliper P/N 46304 – Fits Tie Down 3.5K–6K Axles, 10″/12″ Rotors
    LOADFORCE TIEDOWN 46304 ALUMINIUM Brake Caliper - R&M Trailer Spares46304
    46304
    Regular price
    $215.00
    Sale price
    $215.00
    Unit price
    per 
  • AL‑KO 2 Ton Brake Disc Hub – 6 Stud LandCruiser Pattern (P/N 432127)
    AL - KO 2 Ton Brake Disc 6 Stud - R&M Trailer Spares432127
    432127
    Regular price
    $229.00
    Sale price
    $229.00
    Unit price
    per 
  • 6,000 mm Stainless Steel Brake Line Kit – Tandem Axle | SAE J1401 / DOT Certified
    6000MM S/S FLEXIBLE BRAKE LINE KIT Tandem Axle - R&M Trailer SparesBLK.6000T
    BLK.6000T
    Regular price
    $309.00
    Sale price
    $309.00
    Unit price
    per 
  • 5000 mm Stainless Steel Brake Line Kit – Tandem Axle | DOT/SAE Certified
    5000MM S/S FLEXIBLE BRAKE LINE KIT Tandem Axle - R&M Trailer SparesBLK.5000T
    BLK.5000T
    Regular price
    $295.00
    Sale price
    $295.00
    Unit price
    per 
  • Dexter 12″ Brake Disc – 6‑Stud, Zinc‑Plated, Up to 6,000 lb Axles
    UFP 12 INCH Brake Disc 6 Stud - R&M Trailer Spares434001C
    434001C
    Regular price
    $299.00
    Sale price
    $299.00
    Unit price
    per 
  • 5,500 mm Stainless Steel Brake Line Kit – Tandem Axle Trailer | DOT/SAE Certified
    5500MM S/S FLEXIBLE BRAKE LINE KIT Tandem Axle - R&M Trailer SparesBLK.5500T
    BLK.5500T
    Regular price
    $299.00
    Sale price
    $299.00
    Unit price
    per