Air Filter OEM Part number : reference # E-3226 Round,Drag reference # 1011-0315 Not round,Midwest # 12-579 Not round Compatible with: Motorcycle High Flow Air Filter Reusable Air Cleaner for Harley Model S&S Super E and G Series Carb / Carburetor with Teardrop Washable & Reusable;Replaces S&S E & G shorty air cleaner filter ( Round and not round both will work );Fits S & S E & G Series Carbureted Harley, S&S, ULTIMA, JAMMER Motors with S & S E & G Carbs;1998 - 2004 Gilroy Indian with the S&S engines. 100% new product! Providing unbeatable performance and exceptional value. Convenient and easy install within just minutes Please replace the air filter regularly！It can prevent gravel, dust and other particles from entering the engine, reduce exhaust emissions, improve combustion conditions, reduce cylinder wear, protect the engine from damage, and extend the life of the engine Please make sure the model and year in the link matches before you buy Specification: Condition:100% Brand New OEM Part Number: K & N reference # E-3226 Round Drag reference # 1011-0315 Not round Midwest # 12-579 Not round Size: Please refer to the product picture Compatible with: Motorcycle High Flow Air Filter Reusable Air Cleaner for Harley Model S&S Super E and G Series Carb / Carburetor with Teardrop Washable & Reusable Replaces S&S E & G shorty air cleaner filter ( Round and not round both will work ) Fits S & S E & G Series Carbureted Harley, S&S, ULTIMA, JAMMER Motors with S & S E & G Carbs reference # E-3226 Round Drag reference # 1011-0315 Not round Midwest # 12-579 Not round 1998 - 2004 Gilroy Indian with the S&S engines. Notes: 1. Please be sure to check the compatible model and year when purchasing. 2. Detailed specifications and instructions for the product are not included.If you are worried about installation,please leave it to a professional for installation 3.If you have any problems after receiving our products, please contact us immediately before leaving feedback or making a complaint; we hope that with good communication we can bring you a better solution