# 1321 Dunbier Replacement Clamp Lock-Up Bolt Only | Marine Trailer Part

🔧 Product Description

  

Genuine Dunbier Marine Products Jockey-Wheel Clamp Lock-Up Bolt - Part Number: 1321

  

A replacement locking bolt for compatible Dunbier clamp-mounted jockey wheels. The hand-tightened bolt applies clamping pressure to hold the jockey-wheel tube securely at the selected height or removal position.

  

⚙️ Key Features

  

• Replacement clamp-locking component

• Designed for compatible Dunbier jockey-wheel clamps

• Restores secure tube retention

• Serviceable individual component

• Suitable for lost, bent, seized or stripped original bolts

  

📏 Specifications

  

• Product type: Clamp lock-up bolt only

• Parent clamp: Dunbier 1320 where the thread and length match

• Handle style, thread diameter and thread pitch must match the original

  

🔄 Cross Reference & Related Parts

  

• Related 6-inch jockey-wheel clamp: Dunbier 1320

• Related standard jockey wheel: Dunbier 1290

  

🚤 Compatibility & Application

  

• Use only with a compatible clamp thread and tube arrangement

• Do not substitute an ungraded bolt if the original uses a formed handle or pressure pad

• Tighten firmly enough to prevent movement without crushing the jockey-wheel tube

  

🔌 Function

  

Applies clamping force to lock the jockey-wheel tube inside its mounting clamp.

  

Common signs of wear, damage or replacement required:

  

• Bolt thread is stripped or cross-threaded

• Handle is bent, cracked or difficult to grip

• Bolt seizes inside the clamp

• Pressure end is mushroomed or worn

• Clamp remains loose with the bolt fully tightened

  

📦 Condition

  

• Genuine Dunbier Marine Products part

• Brand new

• Supplied in original or equivalent packaging

## Details

- **Price:** 7.0 AUD
- **Vendor:** Dunbier
- **Tags:** Dunbier Boat Trailers | Marine Trailer Parts & Accessories

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 7.00 AUD | In stock |

## Images

- 1321 Dunbier Replacement Clamp Lock-Up Bolt Only | Marine Trailer Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/1321-dunbier-replacement-clamp-lock-up-bolt-bolt-only)
> Updated: 2026-08-05