420266070 Ignition Coil for Sea-Doo GSX RFI 800 1999

Ignition Coil for Sea-Doo

This ignition coil for Sea-Doo delivers the high-voltage spark your engine needs to fire reliably, cross-referenced to OEM part 420266070.

Overview

This ignition coil for Sea-Doo is a direct-fit electrical component that converts low battery voltage into the high-voltage pulse required to fire the spark plugs. It restores strong, consistent spark on GSX RFI 800 models from 1999, supporting clean combustion and dependable starts. It suits riders replacing a weak or failed coil on a personal watercraft.

Built For Performance

• Cross-referenced to OEM part number 420266070
• Designed for the RFI 800 engine platform
• Delivers consistent high-voltage output to the plugs
• Sealed construction resists moisture in marine environments
• Direct-fit replacement for the original coil location
• Built to handle continuous high-RPM operation

Fits These Machines

• for Sea-Doo GSX RFI 800, 1999

On-The-Job Use

• Restoring spark on a no-start or hard-start PWC
• Routine ignition maintenance on older Sea-Doo models
• Replacing a coil that has weakened over seasons of use
• Getting back on the water after an electrical fault

Specs At A Glance

Good To Know

Q: How do I know my ignition coil needs replacing? A: Common signs include weak or no spark, hard starting, misfiring, and rough running at speed. Testing coil resistance with a multimeter against spec confirms whether it has failed.

Q: Does this coil require any modification to install? A: It is designed as a direct-fit replacement for the OEM coil, so it mounts in the original location using existing connections. Confirm your model and part number match before ordering.

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