Homelite 31118142AG Leaf Blower Bag Genuine Homelite Part # 31118142AG Fits Specific Homelite UT42120 Models That Require This Part # (Not ALL) Please make sure you are ordering correct part # for YOUR Engines Model, Spec/Type Numbers &amp; Serial Number (Many Variations Depending on Spec/Type/Serial) Genuine OEM Homelite Part Compatible with Homelite models: UT42120, UT42120A