420666532 Seadoo ECU | Genuine Used Part

🔧 Product Description

Genuine Sea-Doo ECU - Part Number: 420666532

This genuine Sea-Doo ECU is used in the engine-management system on listed 260HP supercharged 4-TEC models. It controls engine operation, fuel delivery, ignition timing, sensor logic and system protection functions through the factory electrical system.

⚙️ Key Features

• Genuine Sea-Doo ECU

• OEM part number 420666532

• Engine control unit for listed 260HP 4-TEC models

• Related ECU reference 420666422

• Direct-fit OEM control module requiring correct model and key programming match

🔄 Supersession & Cross Reference

OEM Supersession Chain:

• No available supersession chain

OEM / Related Numbers:

• 420666532

• 420666422 — related ECU reference for 260HP applications

Aftermarket / Verified Equivalents:

• No aftermarket equivalent

🚤 Compatibility

Commonly used on:

• Sea-Doo 260HP supercharged 4-TEC engine-management systems

Typically suits:

• Engine models:

• 2010 GTX LTD iS 260 — Electrical System

• 2010 RXT iS 260 — Electrical System

• 2010 RXT-X 260 & X RS — Electrical System

• 2011 GTX LTD iS 260 — Electrical System

• 2011 RXT 260 & RS — Electrical System

• 2011 RXT iS 260 — Electrical System

• 2011 RXT-X 260 & RS — Electrical System

• 2012 GTX LTD iS 260 — Electrical System

• 2012 RXP-X 260 & RS — Electrical System

• 2012 RXT 260 & RS — Electrical System

• 2012 RXT-X 260 & RS — Electrical System

• 2013 GTX LTD iS 260 — Electrical System

• 2013 RXP-X 260 & RS — Electrical System

• 2013 RXT 260 & RS — Electrical System

• 2013 RXT-X 260 & RS — Electrical System

• 2014 GTX LTD iS 260 — Electrical System

• 2014 RXP-X 260 & RS — Electrical System

• 2014 RXT 260 & RS — Electrical System

• 2014 RXT-X 260 & RS — Electrical System

• 2015 GTX LTD iS 260 — Electrical System

• 2015 RXP-X 260 & RS — Electrical System

• 2015 RXT 260 & RS — Electrical System

• 2015 RXT-X 260 & RS — Electrical System

• HP Range: 260HP

• Engine Type: Sea-Doo Rotax 1503 4-TEC Supercharged Engine Management System

• Year Range: Approximately 2010 - 2015

🔌 Function

The ECU controls engine running and protection functions by processing sensor inputs and managing fuel, spark, throttle and system logic.

Common signs of failure:

• No-start or no communication

• ECU fault codes

• Intermittent engine cut-out

• Incorrect key or immobilizer recognition

• Sensor or actuator faults after wiring and components test correctly

📦 Condition

• Genuine used part

• Removed from running engine where applicable

• In good working condition unless otherwise stated