420664049 Camshaft Position Sensor for Sea-Doo GTX 155 1503 2008-2016

Camshaft Position Sensor for Sea-Doo GTX 155

This camshaft position sensor for Sea-Doo GTX 155 models with the 1503 engine provides the timing signal your ECU needs, cross-referencing OEM part 420664049.

Overview

This camshaft position sensor is a direct-fit replacement for the 1503 engine used in Sea-Doo GTX 155 watercraft. It reports camshaft rotation to the engine management system so fuel injection and ignition timing stay accurate. Built for riders servicing their own machines, this camshaft position sensor keeps the 1503 running the way it should.

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 155 1503, 2008-2013
• for Sea-Doo GTX 155 1503, 2015-2016

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 155 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.