# H3064-750 Mackay 1895 Dunbier Braided Stainless Steel Brake Line 750mm | Marine Trailer Part

🔧 Product Description

  

Mackay Flexible Braided Stainless Steel Hydraulic Brake Line 750mm - Part Number: H3064-750

  

A flexible 750mm trailer brake hose with stainless-steel braid and brass end fittings. The preassembled line requires no flaring and is designed to outlast conventional exposed steel brake tubing in marine service.

  

⚙️ Key Features

  

• Flexible stainless-steel braided construction

• Brass end fittings

• Overall length: 750mm

• No on-site tube flaring required

• Matches common original trailer brake fittings

• Suitable for routing around suspension and drawbar movement

  

📏 Specifications

  

• Length: 750mm

• Brake-line type: Flexible braided stainless steel

• End fittings: Brass

• Thread and seat must match the master cylinder, tee, union or caliper

• Copper sealing washers are sold separately where required

  

🔄 Cross Reference & Related Parts

  

• Mackay: H3064-750

• Dunbier: 1895

• Copper sealing washer: Mackay H3073 / Dunbier 1881

• Hydraulic connector: Mackay H3074 / Dunbier 1880

  

🚤 Trailer Compatibility & Application

  

• Suitable for compatible hydraulic boat-trailer brake systems

• Use the correct length without stretching, tight loops or contact with tyres and suspension

• Not a substitute for an incorrectly rated high-pressure hose

  

🔌 Function

  

Transfers pressurised brake fluid between the master cylinder, tees and wheel calipers while accommodating trailer movement.

  

Common signs of wear or replacement:

  

• Fluid weeps through the braid or fittings

• Braid is frayed, crushed or kinked

• Hose rubs on the chassis or tyre

• Fittings are corroded or rounded

• Brake pedal/actuator pressure feels soft because air enters the circuit

  

🛠️ Installation & Safety

  

• Route with smooth bends and adequate movement allowance

• Use proper P-clips rather than overtightened cable ties

• Fit new copper washers on banjo connections

• Do not twist the hose while tightening

• Bleed and pressure-test the system after installation

  

📦 Condition

  

• Brand new Mackay trailer component

• Supplied as one 750mm braided stainless-steel brake line

• Supplied in original or equivalent packaging

## Details

- **Price:** 25.5 AUD
- **Vendor:** Mackay
- **Tags:** Mackay Boat Trailers | Marine Trailer Parts & Accessories

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 25.50 AUD | In stock |

## Images

- H3064-750 Mackay 1895 Dunbier Braided Stainless Steel Brake Line 750mm | Marine Trailer Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/h3064-750-mackay-brake-line-braided-stainless-steel-750mm-1-dunbier-1895)
> Updated: 2026-08-05