✔️COMPATIBILITY: Direct replacement air filter designed for Generac 14KW-20KW Evolution Series home standby generators manufactured from 2013 onwards ✔️PART NUMBER: Matches OEM specification 0J8478S for exact fitment and reliable performance in air-cooled engines ✔️Air filter for Generac part number:0J8478S 0J8478, filter air element is designed for use with Generac air-cooled generators ✔️Fits Generac Rectangle 14kW - 20kW 2013 Evolution Series Generator, Generac V-Twin 990CC and 999CC engine 14-22KW Post 2013. ✔️0J8478S air filter fit for most Gene-rac engines used on Gene-rac Generators ✔️Wide Compatibility: Confidently fits 2013 and newer Generac Evolution/Guardian Series home standby generators from 14kW to 22kW. Also compatible with various models from Centurion, Siemens, Honeywell, and Eaton. Keep Your Running at Peak Performance with Our 2-Pack Air Filter Set Your home standby generator is a critical investment for your family's comfort and safety. Protect that investment with regular maintenance, starting with the simplest yet most vital component—the air filter. Our 2-Pack of 0J8478S replacement air filters is specifically designed to provide superior protection for your generator's engine. By preventing harmful contaminants from entering the combustion chamber, it ensures efficient operation, reduces engine wear, and guarantees reliable starting during a power outage.