Ignition Coil Assembly for Yamaha Outboard 9.9HP 15HP 20HP (66M-85570 Series)

Product Overview

Restore reliable ignition performance to your Yamaha outboard engine with this high-quality ignition coil assembly, designed as a direct replacement for OEM 66M-85570 series.

Engineered for Yamaha 9.9HP, 15HP, and 20HP outboard motors (1998–2006), this coil delivers stable spark output, fast starting, and smooth engine operation across all RPM ranges.

Built with high-temperature resistant insulation and durable copper windings, it is designed to withstand saltwater exposure, humidity, and continuous marine vibration.

Designed to eliminate no-spark, weak ignition, and hard-start issues in Yamaha small horsepower outboard engines.

Product Compatibility

Brand	Engine Type	Horsepower	Model Variants	Year Range	OEM Reference
Yamaha	Outboard 2/4-stroke	9.9HP	Standard models	2005–2006	66M-85570
Yamaha	Outboard 2/4-stroke	15HP	Standard models	1998–2006	66M-85570-00 / -01 / -02 / -03
Yamaha	Outboard 2/4-stroke	20HP	MS / LH / ES / LR / EHS / L	1998–2006	66M-85570 series

OEM / Reference

OEM Part Numbers: 66M-85570, 66M-85570-00, 66M-85570-01, 66M-85570-02, 66M-85570-03

Specifications

Specification	Details
Product Type	Ignition Coil Assembly
Engine Type	Yamaha Outboard Motor
Horsepower Range	9.9HP / 15HP / 20HP
Ignition System	CDI (Capacitor Discharge Ignition)
Material	High-grade copper windings
Insulation	Heat-resistant marine-grade material
Protection	Built-in over-voltage protection
Installation	Direct plug-and-play replacement
Application	Marine ignition system

Key Features

• Designed for Yamaha 9.9HP / 15HP / 20HP outboard engines
• Direct OEM replacement for 66M-85570 series
• Stable ignition output for smooth engine operation
• Heat-resistant and vibration-proof construction
• Built-in over-voltage protection circuit
• Improved fuel efficiency and starting reliability