420666142 Ignition Coil for Sea-Doo RXT X 300 1630 2016-2022

Ignition Coil for Sea-Doo RXT X 300 1630

This ignition coil is a direct replacement electrical component that delivers the high-voltage spark needed to fire the engine on Sea-Doo RXT X 300 1630 watercraft, cross-referenced to OEM part number 420666142.

Overview

This ignition coil serves as the spark-generating link between the ignition system and the spark plugs on Sea-Doo RXT X 300 1630 personal watercraft. It converts low-voltage battery current into the high-voltage pulse required for consistent combustion, helping the engine start cleanly and run smoothly across the RPM range. Built for riders and mechanics who need a dependable replacement for a failed or weak coil on the 1630 engine platform.

Built For Performance

• Cross-references OEM part number 420666142 for direct fitment verification
• Wound coil construction engineered for consistent high-voltage output
• Sealed housing helps resist water spray and engine bay moisture
• Designed to match the electrical demands of the 1630 engine platform
• Plug-and-play terminal layout for straightforward installation

Fits These Machines

• for Sea-Doo RXT X 300 1630, 2016-2022

On-The-Job Use

• Replacing a failed coil that causes misfires or hard starting
• Routine ignition system refresh during engine service
• Restoring consistent spark for smooth acceleration on the water
• Shop and DIY repair on Sea-Doo 1630 engine watercraft

Specs At A Glance

Good To Know

Q: How do I know if my ignition coil needs replacing? A: Common signs include misfires, rough idle, hard starting, or a loss of top-end power. Testing the coil's primary and secondary resistance with a multimeter is the most reliable way to confirm a fault.

Q: Can I install this coil myself? A: Yes, ignition coil replacement is a common DIY task on personal watercraft and typically requires basic hand tools. Always disconnect the battery before starting and match the wiring connections to the original layout.

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