# 420660110 Seadoo Cover | Genuine Used Part

🔧 Product Description

  

Genuine Sea-Doo Plug Cover - Part Number: 420660110

  

This genuine Sea-Doo plug cover is used in the engine block / crankcase assembly on Sea-Doo 4-TEC engines. It is an OEM block case plug cover designed to close and protect the specified engine case opening in the factory assembly.

  

⚙️ Key Features

  

• Genuine Sea-Doo plug cover

• OEM part number 420660110

• Engine block / crankcase plug cover

• Factory sealing and protection component

• Direct-fit OEM cover for Sea-Doo 4-TEC engine case assemblies

  

🔄 Supersession & Cross Reference

  

OEM Supersession Chain:

  

• No available supersession chain

  

OEM / Related Numbers:

  

• 420660110

  

Aftermarket / Verified Equivalents:

  

• No aftermarket equivalent

  

🚤 Compatibility

  

Commonly used on:

  

• Sea-Doo Rotax 4-TEC engine block / crankcase plug assemblies

  

Typically suits:

  

• Engine models:

• GTX 4-TEC — 1503 engine block

• GTX 4-TEC LTD / GTX 4-TEC Supercharged — 1503 engine block

• GTI 130 / GTI SE 130 — 1503 engine block

• GTI SE 155 / GTI LTD 155 — 1503 engine block

• GTR 215 — 1503 engine block

• GTX 155 / GTX 215 / GTX 260 — 1503 engine block

• RXP 215 / RXP-X 255 / RXP-X 260 — 1503 engine block

• RXT 215 / RXT-X 255 / RXT-X 260 — 1503 engine block

• WAKE 155 / WAKE PRO 215 — 1503 engine block

• Challenger / Sportster / Speedster 4-TEC engine block assemblies

  

• HP Range: Approximately 130HP - 260HP

• Engine Type: Sea-Doo Rotax 1503 4-TEC Engine Block / Crankcase Assembly

• Year Range: Approximately 2003 - 2017

  

🔌 Function

  

The plug cover closes the specified block case opening and helps protect the engine case area from contamination and damage.

  

Common signs of failure:

  

• Missing or damaged plug cover

• Oil seepage from plug area

• Cracked or distorted cover

• Poor fitment after engine service

• Damaged sealing or retaining area

  

📦 Condition

  

• Genuine used part

• Removed from running engine where applicable

• In good working condition unless otherwise stated

## Details

- **Price:** 4.0 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 | 4.00 AUD | In stock |

## Images

- 420660110 Seadoo Cover | Genuine Used Part
- 420660110 Seadoo Cover | Genuine Used Part
- 420660110 Seadoo Cover | Genuine Used Part
- 420660110 Seadoo Cover | Genuine Used Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/420660110-seadoo-cover-genuine-used-part)
> Updated: 2026-07-02