# 1972 Dunbier H3269 Mackay Brake Cable Adjuster | Marine Trailer Part

🔧 Product Description

  

Dunbier Mechanical Brake-Cable Adjuster - Part Number: 1972

  

A threaded cable adjuster for Dunbier mechanical trailer brake systems. It provides a controlled method of setting cable tension and compensating for normal pad and linkage wear while maintaining sufficient free play for full brake release.

  

⚙️ Key Features

  

• Threaded mechanical brake-cable adjuster

• Allows accurate cable-tension setting

• Suits Dunbier mechanical disc-brake systems

• Locking-nut arrangement retains adjustment

• Replacement for seized or damaged adjusters

  

📏 Specifications

  

• Mackay reference: H3269

• Application: 4mm mechanical brake cable system

• Thread, cable hole and bracket fit must match the existing setup

  

🔄 Cross Reference & Related Parts

  

• Dunbier: 1972

• Mackay: H3269

• Brake cable: Dunbier 1974 / H3266

• Cable clamps: Dunbier 1973 or 1976

• Mechanical caliper: Dunbier 1971

  

🚤 Trailer Compatibility & Application

  

• Suitable for Dunbier mechanical override and handbrake cable layouts

• Not used in hydraulic brake circuits

• Brake shoes or pads must be adjusted before final cable tension

  

🔌 Function

  

Sets the effective cable length so coupling and handbrake movement applies the mechanical calipers correctly.

  

Common signs of wear or replacement:

  

• Threads are seized, stripped or heavily corroded

• Adjustment repeatedly loosens

• Cable cannot be tensioned within the available range

• Brakes drag after adjustment

• Adjuster is bent or misaligned

  

🛠️ Installation & Safety

  

• Release all brake tension before replacement

• Lubricate threads with a suitable corrosion-resistant compound

• Adjust wheel-end brakes before shortening the cable

• Leave sufficient free play for complete caliper release

• Tighten the lock nut and test service and parking brakes

  

📦 Condition

  

• Brand new Dunbier Marine Products trailer component

• Supplied as one mechanical brake-cable adjuster

• Supplied in original or equivalent packaging

## Details

- **Price:** 13.5 AUD
- **Vendor:** Dunbier
- **Tags:** Dunbier Boat Trailers | Marine Trailer Parts & Accessories

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 13.50 AUD | In stock |

## Images

- 1972 Dunbier H3269 Mackay Brake Cable Adjuster | Marine Trailer Part

---

> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/1972-dunbier-brake-cable-adjuster-mackay-h3269)
> Updated: 2026-08-05