H3008 Mackay AL-KO Brake Controller IQ7 Actuator | Marine Trailer Part

🔧 Product Description

Mackay AL-KO iQ7 Electric-Over-Hydraulic Brake Actuator – Part Number: H3008

An Australian-designed electric-over-hydraulic actuator for large boat trailers with hydraulic disc brakes. The iQ7 stores compressed air in an internal pressure chamber, allowing rapid hydraulic brake application when commanded by an approved motion-sensing in-cab controller, and incorporates breakaway braking.

⚙️ Key Features

• Electric-over-hydraulic brake actuation
• Integrated compressed-air pressure chamber for rapid response
• Built-in breakaway system
• Designed for hydraulic disc-braked trailers
• Australian-designed system with national service support
• Suitable for internal or protected external installation according to instructions

📏 Specifications

• Maximum hydraulic pressure: Approximately 1000psi / 6.9MPa
• Fluid displacement: Approximately 21cc
• Typical application: Trailers up to approximately 3000kg ATM, subject to model approval and installation
• Brake fluid: High-quality DOT 3 or DOT 4 as specified by AL-KO
• Requires an approved motion-sensing in-cab brake controller

🔄 Cross Reference & Related Parts

• Mackay: H3008
• AL-KO actuator reference commonly supplied as 35002E/355002E
• Galvanised mounting plate: Mackay H3030G
• Compatible breakaway switch: Mackay H3038 / Dunbier 7205 where specified
• Comparable systems include Hydrastar EOH actuators, but wiring, pressure and controller compatibility differ

🚤 Trailer Compatibility & Application

• Suitable for compliant large boat and general trailers fitted with compatible hydraulic disc brakes
• Approved brake controllers include selected Tekonsha, REDARC, Hayes and Hayman Reese motion-sensing models
• Trailer ATM, state requirements and component approval must be checked

🔌 Function

Converts an electrical braking command into hydraulic pressure and automatically applies the trailer brakes during a breakaway event.

⚠️ Common Signs of Failure

• Actuator does not build pressure
• Compressor runs excessively or leaks air
• Brake application is delayed or inconsistent
• Low-pressure or breakaway warning is displayed
• Brake fluid leaks or becomes contaminated
• Electrical connectors overheat or corrode

🛠️ Installation & Safety

• Installation must follow the current AL-KO iQ7 manual
• Use an approved brake controller and correctly rated wiring
• Mount securely in the approved orientation
• Bleed the hydraulic system thoroughly
• Test service braking and breakaway operation before road use
• Professional installation may be required for warranty and compliance

📦 Condition

• Brand new Mackay trailer component
• Supplied as one AL-KO iQ7 brake actuator assembly
• Supplied in original or equivalent packaging