This product consists of a set of four Mitsubishi oil drain plug washers, designated by part number MF660035. These washers are essential components used to create a secure seal between the oil drain plug and the engine oil pan, preventing leaks and ensuring optimal performance. Made from high-quality materials, these washers are designed to withstand high temperatures and resist wear. They are a reliable choice for anyone performing oil changes or maintenance on Mitsubishi vehicles, ensuring that the drain plugs function properly and maintain the integrity of the oil system.