Tecumseh 35440 Lawn & Garden Equipment Engine Throttle Control Knob Genuine Original Equipment Manufacturer (OEM) Part Genuine Tecumseh Part # 35440 Fits Specific Tecumseh 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 Tecumseh Part