This genuine Honda 91253706003 oil seal, measuring 12mm inner diameter, 22mm outer diameter, and 6mm thickness, is a critical component for maintaining fluid integrity in a wide range of Honda power equipment and small engines. It is commonly used in crankshafts, transmissions, and other rotating assemblies to prevent oil leaks and protect internal components from contaminants. This durable seal ensures reliable performance and is an OEM replacement for superseded part numbers 91253706000 and 91253706004.