420666142 Ignition Coil for Sea-Doo GTX STD HO 1503 2019

Ignition Coil for Sea-Doo

This ignition coil replaces OEM part 420666142 and provides the spark energy required to fire the engine on Sea-Doo GTX STD HO 1503 models.

Overview

This ignition coil for Sea-Doo is a direct-fit electrical component that boosts voltage to fire the spark plugs on the 1503 engine. It restores dependable starting and even combustion when the original coil fails or degrades. Suited to riders and technicians servicing a 2019 GTX STD HO 1503 with a no-spark or misfire issue.

Built For Performance

• Cross-references OEM part number 420666142
• Designed for the 1503 high-output engine platform
• Sealed body resists moisture and spray in the engine bay
• Delivers consistent spark output through the RPM range
• Direct-fit mounting for simple replacement
• Built to handle the heat and vibration of marine operation

Fits These Machines

• for Sea-Doo GTX STD HO 1503, 2019

On-The-Job Use

• Replacing a failed coil behind a no-start condition
• Fixing misfires, rough idle, or uneven acceleration
• Routine ignition service on the 1503 engine
• Restoring spark after moisture or heat damage

Specs At A Glance

Good To Know

Q: What are the signs of a bad ignition coil? A: Symptoms often include a no-start condition, misfiring, rough running, or a weak spark at the plug. Checking coil resistance against the service spec confirms the fault.

Q: Is this a genuine Sea-Doo coil? A: This is an aftermarket ignition coil made for Sea-Doo applications, not an original factory part. It cross-references OEM part number 420666142 for fitment reference.

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