Key Product Details Purpose: Provides superior filtration to prevent contaminants from entering the engine. Engine Compatibility: Fits select Model 9 and 10 engines, specifically the 10T800 series. This includes engines with 4.50 to 6.00 ft-lbs gross torque (typically 3.0 to 5.0 HP). Equipment Fitment: Frequently used on walk-behind lawn mowers and other small gas-powered equipment. Dimensions: Approximately 3″ Outside Diameter (OD), 1-1/2″ Inside Diameter (ID), and 1-7/8″ Height. Includes: Most genuine kits come with the necessary air filter gasket for a complete seal.