# 3138 Dunbier Double Jet Ski Side Mount (Pair, Suits One Side Only) | Marine Trailer Part

🔧 Product Description

  

Genuine Dunbier Marine Products Double Jet-Ski Side-Mount Bracket Pair - Part Number: 3138

  

A paired side-mount bracket set for one side of a compatible double jet-ski trailer. The two brackets provide attachment points for roller or pad supports along one watercraft lane.

  

⚙️ Key Features

  

• Supplied as a pair for one side of a twin water-toy trailer

• Galvanised marine-trailer construction

• Supports adjustable roller or pad hardware

• Designed for double personal-watercraft frame layouts

• Allows one side of the trailer support system to be serviced independently

  

📏 Specifications

  

• Supply quantity: Two brackets

• Coverage: One side of a double jet-ski trailer

• Opposite side requires a second matched pair where applicable

• Support hardware and rollers are included only where stated

  

📋 Supplied Components

  

• 2 × Side-mount brackets for one side of the trailer

  

🔄 Cross Reference & Related Parts

  

• Adjustable roller assembly pair: Dunbier 3135AD

• Single-water-toy roller kit: Dunbier 3135

  

🚤 Compatibility & Application

  

• Compatible Dunbier double water-toy trailer frame

• Confirm side orientation, cross-member size and support spacing

• Install both brackets square and at equal height

• Final hull support must avoid chines, intake grates and ride plates

  

🔌 Function

  

Mounts one side of the roller or pad system used to support a personal watercraft on a twin trailer.

  

Common signs of wear, damage or replacement required:

  

• Brackets are bent or cracked

• Mounting holes are enlarged

• Support assembly moves under load

• Left and right heights differ

• Corrosion weakens the bracket or fasteners

  

📦 Condition

  

• Genuine Dunbier Marine Products part

• Brand new

• Supplied in original or equivalent packaging

## Details

- **Price:** 270.45 AUD
- **Vendor:** Dunbier
- **Tags:** Dunbier Boat Trailers | Marine Trailer Parts & Accessories

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 270.45 AUD | In stock |

## Images

- 3138 Dunbier Double Jet Ski Side Mount (Pair, Suits One Side Only) | Marine Trailer Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/3138-double-jet-ski-side-mount-pair-suits-1-side-only)
> Updated: 2026-08-03