Ngk Spark Plug - BU8H is equivalent to parts:

• BU8-H0000-00-00 Yamaha Marine
• 509579 Evinrude Johnson OMC BRP
• 503703 Evinrude Johnson OMC BRP
• 6431 NGK
• 13686Q Mercury Marine
• 13686B2 Mercury Marine
• 33 13686Q Mercury Marine
• 33 13686B 2 Mercury Marine

This product fits many makes and models of outboards.  If you are unsure if this product fits your application please call (757) 787-1313 with your engines model & serial number.