Description: Application: Our Gearbox Drain Plug Seal Ring is designed to perfectly fit Mercury Outboard Engines; OE:26-830749Size Details: The seal ring comes with an outer diameter of 14mm, an inner diameter of 9mm, and a thickness of 1.5mmWide Applicability: It's suitable for Mercury and Mariner outboard engines as well as all MerCruiser stern drives with 3/8-16 gearbox drain/fill screw holesProtect Function: The seal ring effectively prevents external moisture, dust, debris, and other contaminants from entering the gearbox, thereby enhancing the performance and lifespan of the gearboxQuality: This drain plug seal ring has a long service life and can maintain its shape and sealing under high temperature, high pressure, and high-speed rotation conditions Size Chart: 1.4cmx0.9cmx0.5cm/0.55inchx0.35inchx0.20inch Package Includes: 1 SetGearcase Drain Plug Seal Washer Gaskets Note: Please allow slightly errors 1-2cm differences due to manual measurement.