420664049 Camshaft Position Sensor for Sea-Doo Challenger SP 430 1503 2010-2011

Camshaft Position Sensor for Sea-Doo

This camshaft position sensor for Sea-Doo, OEM cross-reference 420664049, monitors camshaft rotation and relays timing data to the engine control module so ignition and fuel delivery stay in sync.

Overview

This camshaft position sensor for Sea-Doo is a replacement component that keeps engine timing accurate on Rotax-powered watercraft. It suits owners and technicians who need a reliable camshaft position sensor for Sea-Doo without original equipment pricing. The 420664049 reference matches the factory sensor on several Challenger and 1503 applications.

Built For Performance

• Direct-fit replacement for OEM reference 420664049
• Sealed body shields the internals from water spray and heat
• Magnetic pickup produces a stable signal to the ECU
• Factory-style connector plugs into the original harness
• Compatible with Rotax 1503 engine management

Fits These Machines

• for Sea-Doo Challenger SP 430 1503, 2010-2011

On-The-Job Use

• Fixing no-start or rough-running conditions caused by a weak sensor
• Scheduled ignition system maintenance on jet boats and PWC
• Restoring consistent timing under load on the water

Specs At A Glance

Good To Know

Q: What symptoms point to a bad camshaft position sensor? A: Hard starting, misfires, stalling, and camshaft-related fault codes are typical signs. Swapping in a new sensor often resolves them.

Q: Can I install this sensor myself? A: Yes, it is a straightforward bolt-in job with basic hand tools on most Sea-Doo models. Disconnect the battery first and check the connector for corrosion.

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