• 1946 Dunbier AL-KO Brake Controller iQ7 Actuator | Marine Trailer Part
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1946 Dunbier AL-KO Brake Controller iQ7 Actuator | Marine Trailer Part

1946 Dunbier AL-KO Brake Controller iQ7 Actuator | Marine Trailer Part

$2,235.00 AUD
$2,235.00 AUD
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✓ Authorised Volvo Penta Dealer · Marine & auto specialists · Ships Australia-wide

🔧 Product Description

Dunbier AL-KO iQ7 Electric-Over-Hydraulic Brake Actuator – Part Number: 1946

An Australian-designed power-assisted brake actuator for trailers fitted with hydraulic disc brakes. The iQ7 stores compressed air in an internal pressure chamber so hydraulic braking begins immediately when commanded by a compatible proportional brake controller, and includes breakaway functionality for trailers over 2000kg.

⚙️ Key Features

  • Immediate brake response from stored compressed air
  • Electric-over-hydraulic operation for trailer disc brakes
  • Integrated breakaway system and switch
  • Can be mounted internally or externally using the correct bracket
  • Australian service-network support
  • Compatible with approved motion-sensing/proportional brake controllers

📏 Specifications

  • Maximum hydraulic pressure: Approximately 1000psi / 6.9MPa
  • Fluid displacement: Approximately 21cc
  • Published trailer application: Up to approximately 3 tonnes
  • Brake type: Hydraulic disc
  • Breakaway requirement: Designed to meet applicable ADR requirements for trailers over 2000kg

🔄 Cross Reference & Related Parts

  • Dunbier: 1946
  • Mounting brackets: Dunbier 1940IQ, 1940IQ-12 and 1940IQS
  • Bleed gun assembly: Dunbier 1947
  • Air dump valve/flap: Dunbier 1952
  • Compatible controller examples include Redarc Tow-Pro Elite, Tekonsha P2/P3/Primus IQ, Hayes Energiser III and approved Elecbrakes controllers

🚤 Trailer Compatibility & Application

  • Suits caravans and boat trailers with compatible hydraulic disc brakes
  • Common Dunbier applications include 45mm, 50mm and 60mm hydraulic disc-brake axle systems
  • Requires a compatible proportional in-vehicle brake controller and correctly sized electrical supply

🔌 Function

Receives the brake-controller command, uses stored compressed air to drive the hydraulic master circuit and applies the trailer disc brakes with rapid proportional response.

⚠️ Common Signs of Failure

  • Compressor runs excessively or fails to build pressure
  • Brake application is delayed, weak or absent
  • Fluid leaks or repeated air enters the hydraulic circuit
  • Breakaway warning or controller fault occurs
  • Actuator will not release the hydraulic park brake after reconnection

🛠️ Installation & Safety

  • Installation and commissioning should be performed by a competent brake/electrical technician
  • Use the correct mounting bracket and orientation
  • Provide heavy-gauge protected power and earth wiring
  • Bleed the hydraulic system using the approved procedure
  • Test service braking, park/brake release and breakaway operation before road use

📦 Condition

  • Genuine Dunbier Marine Products trailer component
  • Brand new
  • Supplied as one complete AL-KO iQ7 actuator with integrated breakaway components as supplied
  • Supplied in original or equivalent packaging

Shipping & Delivery

Flat-rate shipping Australia-wide — $14.99 per order, no matter how many parts you add. Orders dispatch from our Kadina, South Australia store. Need it urgently or want to collect in person? Call us on 0412 532 984 before ordering.

Returns & Warranty

14-day change-of-mind returns — if it's not right or you ordered the wrong part, send it back within 14 days in new, unused condition for a refund or exchange. Manufacturer warranties apply to new parts. Full details in our Refunds & Returns policy.

Not sure this fits?

Ask us before you buy — we check part numbers and fitment every day. Call 0412 532 984 (Mon–Fri 8.30am–4.30pm) or message us through the contact page with your engine or vehicle details.

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