# 2022 Dunbier A1685G Mackay Large Spring Fish Plate Galvanised | Marine Trailer Part

🔧 Product Description

  

Dunbier Large Galvanised Fish Plate for 60mm Load-Share Springs - Part Number: 2022

  

A heavy galvanised lower spring plate for 60mm-wide Dunbier load-share suspension. It clamps the spring pack and axle assembly using 45-52mm-wide U-bolts and is sized larger than the standard 45mm slipper-spring plate.

  

⚙️ Key Features

  

• Heavy-duty galvanised construction

• Suits 60mm-wide load-share springs

• Designed for 45-52mm-wide U-bolts

• Four-hole axle-clamping plate

• Used on high-capacity tandem suspension

  

📏 Specifications

  

• Spring width application: 60mm

• U-bolt application: 45-52mm-wide U-bolts

• Mackay reference: A1685G

• Hole spacing must match the selected U-bolts

  

🔄 Cross Reference & Related Parts

  

• Dunbier: 2022

• Mackay: A1685G

• Standard 45mm spring plate: Dunbier 2020

• Load-share springs: Dunbier 2008 and 2012

  

🚤 Trailer Compatibility & Application

  

• Suits compatible Dunbier 60mm load-share suspension

• Choose 2022 or 2023 according to the axle and U-bolt dimensions

• Not interchangeable with the standard 45mm plate

  

🔌 Function

  

Distributes U-bolt clamping load across the heavy load-share spring pack and secures the axle to the suspension.

  

Common signs of wear or replacement:

  

• Plate bends or cracks

• Bolt holes elongate

• U-bolts no longer seat squarely

• Axle moves on the spring

• Deep corrosion reduces plate thickness

  

🛠️ Installation & Safety

  

• Use new U-bolts and locking nuts

• Align the axle and spring centre before tightening

• Torque progressively and evenly

• Verify plate does not contact moving suspension parts

• Re-torque after initial loaded travel

  

📦 Condition

  

• Brand new Dunbier Marine Products trailer component

• Supplied as one large galvanised spring fish plate

• Supplied in original or equivalent packaging

## Details

- **Price:** 6.0 AUD
- **Vendor:** Dunbier
- **Tags:** Dunbier Boat Trailers | Marine Trailer Parts & Accessories

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 6.00 AUD | In stock |

## Images

- 2022 Dunbier A1685G Mackay Large Spring Fish Plate Galvanised | Marine Trailer Part
- 2022 Dunbier A1685G Mackay Large Spring Fish Plate Galvanised | Marine Trailer Part
- 2022 Dunbier A1685G Mackay Large Spring Fish Plate Galvanised | Marine Trailer Part
- 2022 Dunbier A1685G Mackay Large Spring Fish Plate Galvanised | Marine Trailer Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/2022-dunbier-large-spring-fish-plate-galvanized-mackay-a1685g)
> Updated: 2026-08-05