Genuine OEM Mazda Oil Strainer O-Ring, part number FZ0121031. This O-ring provides a critical seal for the oil strainer assembly, preventing oil leaks and ensuring proper lubrication system function. It is typically located where the oil strainer housing meets the oil pump or engine block. Genuine OEM O-rings are made from durable materials designed to resist oil and heat, ensuring a reliable seal throughout the life of the component.