420664049 Camshaft Position Sensor for Sea-Doo Islandia SE 155 1503 2007

Camshaft Position Sensor for Sea-Doo

This camshaft position sensor, reference 420664049, monitors camshaft rotation and reports timing data to the engine management system so fuel delivery and ignition stay synchronized.

Overview

This camshaft position sensor is a direct-fit replacement for the 420664049 unit used on Sea-Doo Islandia and SE 155 1503 watercraft from the 2007 model year. The sensor reads camshaft position and feeds that signal to the ECU to keep ignition timing and fuel injection on schedule. It suits owners replacing a failed or intermittent sensor on the 1503 engine platform.

Built For Performance

• Direct replacement for OEM reference 420664049
• Sealed housing resists moisture and spray common in marine engine bays
• Plug-and-play connector matches the factory harness
• Solid-state sensing element with no moving wear parts
• Withstands the heat and vibration of the 1503 engine
• Restores accurate camshaft timing signals to the ECU

Fits These Machines

• for Sea-Doo Islandia 1503
• for Sea-Doo SE 155 1503
• 2007 model year applications

On-The-Job Use

• Replacing a failed camshaft sensor that causes hard starting
• Restoring smooth idle and throttle response on the water
• Fixing check engine faults tied to camshaft signal codes
• Scheduled maintenance on high-hour 1503 engines

Specs At A Glance

Good To Know

Q: How do I know the camshaft position sensor has failed? A: Common signs include hard starting, rough running, stalling, or a check engine light with camshaft signal codes. A diagnostic scan confirming a missing or erratic cam signal points to replacement.

Q: Does this sensor need programming after installation? A: No programming is typically required; it is a plug-in replacement that the ECU reads automatically. Clear any stored fault codes after fitting and confirm the engine starts and runs cleanly.

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