# 1941 Dunbier Hydrastar - Power Cable between Vehicle and Trailer -7 Pin | Marine Trailer Part

🔧 Product Description

  

Dunbier Hydrastar Seven-Pin Vehicle-to-Trailer Power Cable - Part Number: 1941

  

A dedicated seven-pin electrical lead connecting the tow vehicle to a compatible Hydrastar electric-over-hydraulic brake actuator installation. It carries the required power, brake-controller signal and trailer electrical connections through the matched plug arrangement.

  

⚙️ Key Features

  

• Seven-pin vehicle-to-trailer connection

• Designed for compatible Hydrastar braking systems

• Trailer-grade multi-core cable

• Supports removable vehicle/trailer connection

• Replacement for damaged or corroded power leads

  

📏 Specifications

  

• Connector: Seven pin

• Application: Hydrastar electric-over-hydraulic brake system

• Cable pin-out must match the installed vehicle and actuator wiring

• Current capacity and earth return must satisfy the actuator specification

  

🔄 Cross Reference & Related Parts

  

• Dunbier: 1941

• Twelve-pin Dunbier iQ7/Hydrastar cable variants are catalogued separately

• Hydrastar actuator service parts include solenoid, valve, detector board and breakaway switch families

  

🚤 Trailer Compatibility & Application

  

• Suits compatible Hydrastar-equipped trailers and correctly wired tow vehicles

• Requires an approved proportional electric brake controller

• Not automatically compatible with AL-KO iQ7 wiring

  

🔌 Function

  

Supplies electrical power and brake-controller command between the tow vehicle and Hydrastar actuator.

  

Common signs of wear or replacement:

  

• Actuator powers intermittently

• Plug pins are burnt, green or loose

• Cable insulation is cut or crushed

• Voltage drop causes weak or delayed braking

• Earth circuit overheats or brake controller reports a fault

  

🛠️ Installation & Safety

  

• Verify the complete pin-out before connecting

• Use correctly rated vehicle wiring, circuit protection and earth

• Secure the cable away from the coupling and road surface

• Keep plug contacts clean and dry

• Test brake-controller output and breakaway function after installation

  

📦 Condition

  

• Genuine Dunbier Marine Products trailer component

• Brand new

• Supplied as one seven-pin Hydrastar power cable

• Supplied in original or equivalent packaging

## Details

- **Price:** 48.5 AUD
- **Vendor:** Dunbier
- **Tags:** Dunbier Boat Trailers | Marine Trailer Parts & Accessories

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 48.50 AUD | In stock |

## Images

- 1941 Dunbier Hydrastar - Power Cable between Vehicle and Trailer -7 Pin | Marine Trailer Part
- 1941 Dunbier Hydrastar - Power Cable between Vehicle and Trailer -7 Pin | Marine Trailer Part
- 1941 Dunbier Hydrastar - Power Cable between Vehicle and Trailer -7 Pin | Marine Trailer Part
- 1941 Dunbier Hydrastar - Power Cable between Vehicle and Trailer -7 Pin | Marine Trailer Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/1941-hydrastar-dunbier-power-cable-between-vehicle-and-trailer-7-pin)
> Updated: 2026-08-05