420664049 Camshaft Position Sensor for Sea-Doo GTX 1503 2002-2003

Camshaft Position Sensor for Sea-Doo GTX 1503

This camshaft position sensor for Sea-Doo GTX 1503 models delivers the timing signal your engine computer relies on, cross-referencing OEM part 420664049.

Overview

This camshaft position sensor is a replacement unit for the 1503 engine found in Sea-Doo GTX watercraft. It sends camshaft position data to the ECU so fuel delivery and spark timing stay correct. Ideal for owners servicing their own 1503, this camshaft position sensor restores reliable engine operation.

Built For Performance

• Direct replacement for OEM part 420664049
• Sealed housing resists water and engine bay contaminants
• Stable signal output across the full RPM range
• Plug-in connector matches the factory harness
• Heat-resistant body rated for marine engine temperatures

Fits These Machines

• for Sea-Doo GTX 1503, 2002-2003

On-The-Job Use

• Replacing a failed or intermittent cam sensor
• Routine engine maintenance on 1503 powerplants
• Restoring proper fuel injection and ignition timing
• Diagnosing no-start or rough-running conditions

Specs At A Glance

Good To Know

Q: Will this sensor plug into my factory wiring? A: Yes, the connector is made to match the original harness on 1503-equipped GTX models. Every unit is built to the same fit and signal spec as part 420664049.

Q: Do I need to replace the cam sensor in pairs? A: No, camshaft position sensors are replaced individually as needed. If you are chasing a timing fault, confirm the crank sensor and wiring are also in good condition.

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