Sierra 18-3904; 394930 Fits Johnson Evinrude Piston Rings Std

Sierra Marine products are engineered to surpass today’s high horsepower engine demands and stand up to the harsh marine environment. Sierra Marine are the leading supplier of marine engine and drive parts with over 50 year in business, offering 1,000’s of parts.

Bore Size : 35 Standard All Sierra parts qualify for and are covered under Sierra's industry leading customer satisfaction warranty