420664049 Camshaft Position Sensor for Sea-Doo Fish Pro 155 1503 2019

Camshaft Position Sensor for Sea-Doo Fish Pro 155

This camshaft position sensor for Sea-Doo delivers the timing signal the engine control module needs to fire the ignition and fuel injection at the correct moment, and it is built to OEM reference 420664049.

Overview

This camshaft position sensor for Sea-Doo is a direct replacement electronic component that reports camshaft rotation to the engine management system so spark and fuel delivery stay synchronized. It is made for riders who need to restore a no-start or rough-running condition on their personal watercraft. The camshaft position sensor for Sea-Doo installs in the original mounting location without modification.

Built For Performance

• Direct replacement for OEM reference 420664049
• Sealed connector body resists water and salt spray intrusion
• Solid-state Hall-effect sensing element with no moving parts to wear
• Heat-resistant housing suited to enclosed engine compartment temperatures
• Factory-style mounting flange and bolt hole for drop-in fitment
• Consistent signal output across the full operating RPM range

Fits These Machines

• for Sea-Doo Fish Pro 155 1503 (2019)

On-The-Job Use

• Replacing a failed sensor that has triggered a check engine code
• Restoring cold-start and idle quality on EFI-equipped watercraft
• Routine ignition system service on 1503-powered models
• Diagnostic work on intermittent stall or misfire complaints

Specs At A Glance

Good To Know

Q: Do I need to replace the sensor if my engine only stalls occasionally? A: Intermittent camshaft signal faults often produce random stalls or hard starts before failing completely, so replacing the sensor is a reasonable first step once the code is confirmed.

Q: Is any programming required after installation? A: This is a passive sensor that feeds the ECM directly, so no flashing or calibration is normally needed after bolting it in and clearing stored codes.

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