# 277001910 Seadoo Rear Extension Block | Genuine Used Part

🔧 Product Description

  

Genuine Sea-Doo Rear Extension Block - Part Number: 277001910

  

This genuine Sea-Doo rear extension block is used in the steering and handlebar assembly on selected performance Sea-Doo personal watercraft. It is an OEM rear support component designed to maintain the factory steering-housing structure and rear mounting alignment.

  

⚙️ Key Features

  

• Genuine Sea-Doo rear extension block

• OEM part number 277001910

• Steering-assembly rear support component

• Helps maintain rear housing position and alignment

• Direct-fit OEM part for selected RXT-X aS steering assemblies

  

🔄 Supersession & Cross Reference

  

OEM Supersession Chain:

  

• No available supersession chain

  

OEM / Related Numbers:

  

• 277001910

  

Aftermarket / Verified Equivalents:

  

• No aftermarket equivalent

  

🚤 Compatibility

  

Commonly used on:

  

• Sea-Doo steering and handlebar housing assemblies

  

Typically suits:

  

• Engine models:

• 2014 RXT-X aS 260 & RS — Steering

  

• HP Range: 260HP

• Engine Type: Sea-Doo 4-TEC Steering / Handlebar Housing Assembly

• Year Range: Approximately 2014

  

🔌 Function

  

The rear extension block supports the rear section of the steering housing and helps maintain correct assembly alignment.

  

Common signs of failure:

  

• Cracks or damage

• Distortion

• Loose assembly fitment

• Misalignment in steering housing parts

• Damage at fastener locations

  

📦 Condition

  

• Genuine used part

• Removed from running engine where applicable

• In good working condition unless otherwise stated

## Details

- **Price:** 75.0 AUD
- **Vendor:** Sawley's Auto and Marine
- **Tags:** Sawley’s AAM Used Parts – Sea-Doo Parts | Jet Ski Parts & Components

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 75.00 AUD | In stock |

## Images

- 277001910 Seadoo Rear Extension Block | Genuine Used Part
- 277001910 Seadoo Rear Extension Block | Genuine Used Part
- 277001910 Seadoo Rear Extension Block | Genuine Used Part
- 277001910 Seadoo Rear Extension Block | Genuine Used Part
- 277001910 Seadoo Rear Extension Block | Genuine Used Part
- 277001910 Seadoo Rear Extension Block | Genuine Used Part
- 277001910 Seadoo Rear Extension Block | Genuine Used Part
- 277001910 Seadoo Rear Extension Block | Genuine Used Part
- 277001910 Seadoo Rear Extension Block | Genuine Used Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/277001910-seadoo-rear-extension-block-genuine-used-part)
> Updated: 2026-07-02