420864220 Seadoo Engine Harness | Genuine Used Part

🔧 Product Description

Genuine Sea-Doo Engine Wiring Harness - Part Number: 420864220

This genuine Sea-Doo engine wiring harness is used in the electrical system on selected Sea-Doo 4-TEC models. It connects engine sensors, ignition, charging, fuel-injection and control components to the main electrical system through the factory engine loom.

⚙️ Key Features

• Genuine Sea-Doo engine wiring harness
• OEM part number 420864220
• Factory engine electrical harness assembly
• Connects engine sensors and control components
• Direct-fit OEM harness for listed Sea-Doo 4-TEC electrical assemblies

🚤 Compatibility

Commonly used on

• Sea-Doo 4-TEC engine electrical harness assemblies

Typically suits

• Engine models:
• 2011 GTX 215 — Engine Harness
• 2011 GTX iS 215 — Engine Harness
• 2011 GTX Limited iS 260 — Engine Harness
• 2011 RXT 260 & RS — Engine Harness
• 2011 RXT iS 260 — Engine Harness
• 2011 RXT-X 260 & RS — Engine Harness
• 2011 WAKE PRO 215 — Engine Harness
• 2012 GTX 215 — Engine Harness
• 2012 GTX Limited iS 260 — Engine Harness
• 2012 RXT 260 / RXT-X 260 — Engine Harness
• HP Range: Approximately 215HP - 260HP
• Engine Type: Sea-Doo Rotax 1503 4-TEC Engine Electrical System
• Year Range: Approximately 2011 - 2012

🔌 Function

The engine harness carries sensor, injector, ignition, charging and control signals between the engine and the craft's electrical system.

⚠️ Common Signs of Failure

• Intermittent electrical faults
• Check engine warning or fault codes
• No-start or poor start authorization
• Damaged, corroded or broken connectors
• Harness chafing, heat damage or open circuits

🔄 Supersession & Cross Reference

OEM Supersession Chain

• No available supersession chain

OEM / Related Numbers

• 420864220

Aftermarket / Verified Equivalents

• No aftermarket equivalent

📦 Condition

• Genuine used part
• Removed from running engine where applicable
• In good working condition unless otherwise stated