SPI Noise / Knock Sensor for Sea-Doo fits most 2011-2023 Replaces OEM# 420664031

Noise / Knock Sensor for Sea-Doo

This SPI noise/knock sensor replaces OEM# 420664031 and fits most 2011-2023 Sea-Doo models, detecting engine knock to help prevent damage. It is a direct electrical replacement for the original sensor, restoring proper engine management.

Overview

The noise/knock sensor for Sea-Doo detects abnormal engine vibrations caused by detonation, allowing the ECU to adjust timing and protect the engine. Compatible with most 2011-2023 Sea-Doo watercraft, this replacement sensor uses OEM# 420664031 for easy cross-reference. Rely on this sensor to keep your Sea-Doo running smoothly under load.

Built For Performance

• Designed specifically for Sea-Doo engines (2011-2023)
• Replaces OEM part number 420664031
• Piezo-electric sensing element for accurate knock detection
• Direct plug-in installation, no modification required
• Helps maintain optimal engine timing and performance

On-The-Job Use

• Detects engine knock under high load or poor fuel conditions
• Used during engine diagnostics and sensor replacement
• Essential for preventing detonation damage in marine engines
• Commonly replaced after knock sensor fault codes appear

Specs At A Glance

Good To Know

Q: Can this sensor be used on models older than 2011? A: It is designed for 2011-2023 Sea-Doo models; earlier models may have different connectors or resistance values.

Q: Will a faulty knock sensor cause a check engine light? A: Yes, a failing knock sensor often triggers a diagnostic trouble code and may reduce engine performance to protect the motor.

Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.