420664049 Camshaft Position Sensor for Sea-Doo Fish Compact 170 1630 2026

Camshaft Position Sensor for Sea-Doo Fish Compact 170

This camshaft position sensor for Sea-Doo provides the cam timing reference the engine control module uses to sequence spark and fuel delivery, and it cross-references OEM part 420664049.

Overview

This camshaft position sensor for Sea-Doo is a replacement electronic sensor that reads camshaft rotation and sends that signal to the engine management system for accurate ignition timing. It suits riders chasing down a check engine light, hard starting, or poor running on their watercraft. The camshaft position sensor for Sea-Doo mounts in the factory location with the original hardware.

Built For Performance

• Direct replacement for OEM reference 420664049
• Weather-sealed connector rated for marine engine bay conditions
• Hall-effect design with no contact wear points
• High-temperature housing for enclosed engine compartments
• Factory-matched mounting flange and bolt pattern
• Stable signal output throughout the RPM range

Fits These Machines

• for Sea-Doo Fish Compact 170 1630 (2026)

On-The-Job Use

• Replacing a sensor flagged by an engine fault code
• Restoring reliable starting and idle on EFI watercraft
• Ignition system maintenance on 1630-powered models
• Troubleshooting intermittent misfire or stall conditions

Specs At A Glance

Good To Know

Q: Will this sensor clear the fault code on its own? A: The code normally clears once the new sensor is installed and the ECM completes a drive cycle, though some systems require a manual scan tool reset.

Q: Can a bad camshaft sensor cause a no-start condition? A: Yes, when the ECM loses cam signal it may cut fuel and spark as a protective measure, which shows up as a crank-no-start symptom.

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