The Briggs & Stratton 270340 is an authentic OEM cylinder head gasket designed to provide a reliable seal between the cylinder head and engine block. This crucial component helps maintain proper engine compression and prevents oil or coolant leaks, ensuring optimal engine performance and longevity. It serves as a direct replacement for original equipment on a wide range of Briggs & Stratton 5 HP horizontal shaft engines and other specified engine series, including 130200, 130900, 131200, 133200, 135200, 136200, 137200, 138200, 170400, 190400, 195400, 220400, 221400, 252400, 253400, 254400, 255400, 280700, 281700, 282700, 283700, 284700, 286700, 287700, 288700, 289700, 310700, 311700, 312700, and 313700 series engines.