Kawasaki FB460V series (12.5 HP) 4-stroke engines. These engines are widely used in commercial walk-behind mowers, lawn tractors, and outdoor power equipment from brands such as Toro and John Deere. Key Specifications & Compatibility Primary Compatibility: Kawasaki FB460V engine series (e.g., FB460V-AS01, FB460V-BS01, FB460V-CS01). Brand Compatibility: Fits various commercial mowers including Toro Proline Walk-Behind models (e.g., 30166, 30167, 30193). Function: Pleated paper construction traps fine dust, dirt, and debris to protect the engine intake and maintain peak fuel efficiency. Common Equivalents / Replaces: John Deere AM101191