# 420874846 Seadoo Injector | Genuine Used Part

🔧 Product Description

  

Genuine Sea-Doo Fuel Injector - Part Number: 420874846

  

This genuine Sea-Doo fuel injector is used in the electronic fuel-injection system on Sea-Doo 4-TEC engines. It meters fuel into the intake system under ECU control to support correct starting, throttle response, acceleration and engine performance.

  

⚙️ Key Features

  

• Genuine Sea-Doo fuel injector

• OEM part number 420874846

• Factory electronic fuel-injection component

• Related earlier injector reference 420874834

• Direct-fit OEM injector for listed Sea-Doo 1503 4-TEC fuel systems

  

🔄 Supersession & Cross Reference

  

OEM Supersession Chain:

  

• 420874846 → Related to 420874834

• 420874834 (earlier related OEM reference)

  

OEM / Related Numbers:

  

• 420874846

• 420874834

• 5874846 — earlier BRP injector reference

• 420874414 — related fuel rail

• 420853030 — related injector clip

  

Aftermarket / Verified Equivalents:

  

• AJSP: aftermarket fuel injector to suit 420874846 / 420874834 applications

• SBT: replacement fuel injector for Sea-Doo 4-TEC applications where 420874846 is specified

  

🚤 Compatibility

  

Commonly used on:

  

• Sea-Doo 4-TEC fuel-injection systems

  

Typically suits:

  

• Engine models:

• GTI 130 / GTI SE 130 — 1503 4-TEC fuel injection

• GTI SE 155 / GTI LTD 155 — 1503 4-TEC fuel injection

• GTS 130 — 1503 4-TEC fuel injection

• GTR 215 / GTR 230 — 1503 4-TEC fuel injection

• GTX 155 / GTX 215 / GTX 260 — 1503 4-TEC fuel injection

• RXP 215 / RXP-X 255 / RXP-X 260 — 1503 4-TEC fuel injection

• RXT 215 / RXT-X 255 / RXT-X 260 — 1503 4-TEC fuel injection

• WAKE 155 / WAKE PRO 215 / WAKE PRO 230 — 1503 4-TEC fuel injection

• Challenger / Speedster / Sportster 4-TEC boat engines using 1503 fuel injection

  

• HP Range: Approximately 130HP - 260HP

• Engine Type: Sea-Doo Rotax 1503 4-TEC Fuel Injection System

• Year Range: Approximately 2006 - 2019

  

🔌 Function

  

The fuel injector atomises and delivers fuel into the intake stream under ECU control so the engine receives the correct fuel quantity for operating conditions.

  

Common signs of failure:

  

• Hard starting or no-start

• Rough idle or misfire

• Poor acceleration or hesitation

• Fuel smell or leaking injector seal

• Injector fault codes or uneven cylinder fuelling

  

📦 Condition

  

• Genuine used part

• Removed from running engine where applicable

• In good working condition unless otherwise stated

## Details

- **Price:** 95.0 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 | 95.00 AUD | In stock |

## Images

- 420874846 Seadoo Injector | Genuine Used Part
- 420874846 Seadoo Injector | Genuine Used Part
- 420874846 Seadoo Injector | Genuine Used Part
- 420874846 Seadoo Injector | Genuine Used Part
- 420874846 Seadoo Injector | Genuine Used Part

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/420874846-seadoo-injector-genuine-used-part)
> Updated: 2026-07-02