# 3934 Dunbier H3934 Mackay Ratchet Tie-Down HD 25mm x 1.5m S Hooks Both Ends | Marine Trailer Part

## 🔧 Product Description

**Dunbier Heavy-Duty Over-Boat Ratchet Tie-Down 25mm × 1.5m – Part Number: 3934**

A Dunbier trailer tie-down using 25mm webbing and a 1.5m working length. The S-hooks both ends connect the boat to rated trailer attachment points, while the ratchet, overcentre or camlock mechanism tensions the strap for transport. The published rating is 800kg published load/breaking reference.

## ⚙️ Key Features

-   Web width: 25mm
-   Length: 1.5m
-   Hook arrangement: S-hooks both ends
-   Published rating: 800kg published load/breaking reference
-   Marine-trailer securing application
-   Supplied as: single

## 📏 Specifications

-   Webbing: 25mm
-   Length: 1.5m
-   Hardware: S-hooks both ends
-   Rating: 800kg published load/breaking reference
-   Quantity: single

## 🔄 Cross Reference & Related Parts

-   Dunbier: 3934
-   Mackay: H3934
-   All Dunbier tie-downs must be used within their permanent marked rating
-   Related Dunbier tie-down family: 3930–3974

## 🚤 Trailer Compatibility & Application

-   Suitable for securing the bow, transom, personal watercraft or complete boat only as described by the product type
-   Attachment points must be structurally rated and correctly positioned
-   The working load must be based on the product label, not breaking strength alone

## 🔌 Function

Restrains the boat against vertical and lateral movement during road transport.

## ⚠️ Common Signs of Failure

-   Webbing is cut, frayed or UV-degraded
-   Hooks are bent or coating is worn through
-   Ratchet/camlock does not hold tension
-   Stitching is damaged
-   Rating label is unreadable

## 🛠️ Installation & Safety

-   Inspect before every trip
-   Do not knot, twist or run webbing over sharp edges
-   Tension evenly without deforming the hull
-   Use separate bow and transom restraints as required
-   Replace any strap with damaged load-bearing fibres

## 📦 Condition

-   Genuine Dunbier Marine Products part
-   Brand new
-   Supplied as one single Dunbier tie-down assembly
-   Supplied in original or equivalent packaging

## Details

- **Price:** 55.5 AUD
- **Vendor:** Dunbier
- **Type:** Trailer Parts
- **Tags:** Dunbier Boat Trailers | Marine Trailer Parts & Accessories

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 55.50 AUD | In stock |

## Images

- 3934 Dunbier H3934 Mackay Ratchet Tie-Down HD 25mm x 1.5m S Hooks Both Ends | Marine Trailer Part
- 3934 Dunbier H3934 Mackay Ratchet Tie-Down HD 25mm x 1.5m S Hooks Both Ends | Marine Trailer Part - photo 2 of 3
- 3934 Dunbier H3934 Mackay Ratchet Tie-Down HD 25mm x 1.5m S Hooks Both Ends | Marine Trailer Part - photo 3 of 3

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/3934-dunbier-ratchet-tie-down-hd-25mm-x-1-5m-s-hooks-both-ends-mackay-h3934)
> Updated: 2026-09-06