420666142 Ignition Coil for Sea-Doo GTI SE 155 1503 2017-2019

Ignition Coil for Sea-Doo

This ignition coil delivers the spark energy needed to fire the engine on 2017 to 2019 Sea-Doo GTI SE 155 1503 models, direct cross-reference 420666142.

Overview

This ignition coil for Sea-Doo is a direct replacement component engineered to restore reliable spark delivery on the 1503 engine. As a replacement ignition coil, it helps eliminate misfires, hard starting, and rough running caused by a weak or failed coil. It is built for riders who want dependable ignition performance from a bolt-in part.

Built For Performance

• Direct cross-reference to 420666142 for straightforward replacement
• Designed for the 1503 engine platform used in 2017 to 2019 GTI SE 155 models
• Delivers consistent spark energy for clean, reliable combustion
• Sealed construction resists moisture and vibration common in marine use
• Plug-and-play electrical connection for a simple install
• Built to withstand continuous high-rpm operation on the water

Fits These Machines

• for Sea-Doo GTI SE 155 1503, 2017
• for Sea-Doo GTI SE 155 1503, 2018
• for Sea-Doo GTI SE 155 1503, 2019

On-The-Job Use

• Replacing a failed coil that causes misfires or a no-start condition
• Restoring consistent spark during routine ignition maintenance
• Servicing personal watercraft used for recreational riding
• Getting a ski back on the water after a coil-related breakdown

Specs At A Glance

Good To Know

Q: How do I know my ignition coil needs replacing? A: Common signs include hard starting, misfires, rough idle, and loss of power under acceleration. A coil that fails electrical testing or shows visible damage should be replaced.

Q: Is this an original Sea-Doo part? A: This is an aftermarket ignition coil for Sea-Doo that cross-references 420666142. Confirm the part number against your machine 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.