OEM Part Number:Air Filter Replaces for Briggs & Stratton 393957 393957S 390930 4106, for PT9334 LG393957S LG393957 PT4301, for Prime Line 7-02210 7-02210-1 7-02210-10, for Ariens 24519, for Oregon 30-044 Fit for Pre Filter Replaces for Briggs & Stratton 271794 271794S, for M96098, for Prime Line 7-02278, for Ariens 24518, for Oregon 30-920 for Briggs & Stratton Parts # 170400, 171400, 190400, 194400, 195400, 220400, 221400, 222400, 233400, 243400, 252400, 253700, 254400, 290400, 294400, 302400, 303400, Function:Factory air filter, durable and excellent filter paper,sturdy synthetic metal casing, protecting engine, eliminate contaminating of dirt, dust and debris from the carburetor and engine, improves air flow. Top Quality:Premium Advanced Materials, High-quality foam, low resistance, high intake efficiency, low intake noise, sufficient fuel atomization, improved engine power, and oil saving. Customer Service:You can contact us first for any problem or concern, your problem will be figured out with our support. Your satisfaction will be our greatest impetus.