Yamaha - Spring, tension - 90506-23M11-00 Blue Sea Systems Circuit Breakers and the fitment is tight

and the fitment is tight and secure thanks to Mercury’s factory-matched design

Mercury OEM Quality: Designed and tested by Mercury Marine for precise fit and dependable performance

Complete 300-hour service kit for Mercury 4-cylinder 40–60 horsepower FourStroke EFI outboards

but once you’ve run a boat long enough

This product has been superseded by: FOB4476-1

Yamaha - Spring, tension - 90506-23M11-00 Blue Sea Systems Circuit Breakers and the fitment is tight90506 23M11 00 SPRING, TENSION WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings. ca. gov.