Yamaha Motors
https://www.crowleymarine.com/yamaha/products/ngk-cr4hs-b0-00-spark-plug-ngk-cr4hsb
Spark Plug (NGK CR4HSB) NGK-CR4HS-B0-00
https://www.crowleymarine.com/yamaha/products/ngk-cr4hs-b0-00-spark-plug-ngk-cr4hsb
Price not available
No longer available
Product Description
Yamaha factory part.