Genuine OEM Tecumseh Part OEM Air Cleaner Part Number: 450239 May not include original package. Genuine Original Equipment Manufacturer (Oem) Parts! This Air Filter (Part Number 450239) Is For Lawn And Garden Equipment Engines. Air Filter 450239 Cleans The Air Entering The Carburetor. Replace The Air Filter Periodically, Following The Guidelines In The Owner's Manual. Let The Engine Cool Before Installing This Part. Wear Work Gloves To Protect Your Hands.