# 1620G Dunbier Axle Saddle Galvanised | Marine Trailer Part

🔧 Product Description

  

Dunbier Galvanised Square-Axle Saddle - Part Number: 1620G

  

A galvanised spring saddle used to locate a compatible square axle on a leaf-spring suspension. The saddle provides the flat spring seat and centre-bolt location required to position the axle correctly before the U-bolts and fish plate are tightened.

  

⚙️ Key Features

  

• Galvanised finish for marine trailer service

• Formed seat for compatible square axle beam

• Centre location for the leaf-spring centre bolt

• Used with matching U-bolts and lower fish plate

• Individual replacement saddle

  

📏 Specifications

  

• Application: Square trailer axles

• Finish: Galvanised

• Exact beam width and centre-hole size must match the axle and spring

  

🔄 Cross Reference & Related Parts

  

• Dunbier: 1620G

• Display-packed pair: Dunbier 1620GC

• Round-axle saddle: Dunbier 1621

• Related U-bolts, nuts and fish plates must match the axle beam

  

🚤 Trailer Compatibility & Application

  

• Suitable for compatible Dunbier square-axle suspension assemblies

• Not suitable for 39mm round axles

• Spring width and axle size must be verified before welding or clamping

  

🔌 Function

  

Locates the axle on the spring and distributes clamping load from the U-bolt assembly.

  

Common signs of wear or replacement:

  

• Saddle is cracked, bent or deeply corroded

• Centre hole is elongated

• Axle has moved on the spring

• U-bolts no longer seat squarely

• Welded saddle has separated from the axle

  

🛠️ Installation & Safety

  

• Axle alignment should be set by a competent trailer technician

• Replace U-bolts rather than reusing stretched or corroded hardware

• Position the spring centre bolt fully in the saddle hole

• Tighten U-bolts evenly to the specified torque

• Recheck alignment and U-bolt tension after initial road use

  

📦 Condition

  

• Brand new Dunbier Marine Products trailer component

• Supplied as one galvanised square-axle saddle

• Supplied in original or equivalent packaging

## Details

- **Price:** 2.0 AUD
- **Vendor:** Dunbier
- **Tags:** Dunbier Boat Trailers | Marine Trailer Parts & Accessories

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 2.00 AUD | In stock |

## Images

- 1620G Dunbier Axle Saddle Galvanised | Marine Trailer Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/1620g-dunbier-axle-saddle-galvanized)
> Updated: 2026-08-05