This part is an oil filler tube. The oil filler tube is what directs replacement oil into the engine when oil is being replaced or added to the engine. This allows the user to easily fill the engine with oil. A new oil filler tube may be needed if there is any sign of wear or damage to the part. If there are any leaks when refilling the engine with oil, then the oil filler tube should be replaced.This part is a genuine Tecumseh part and is an OEM part sourced directly from the manufacturer and it is sold individually. This oil filler tube is compatible with chippers, shredders, edgers, engines, pressure washers, vacuums manufactured by Tecumseh, Husqvarna, Toro, Lawn-Boy, Cub Cadet, and MTD.