Briggs & Stratton Briggs & Statton Lawn & Garden Equipment Engine Governor Spring 806872 Genuine OEM. This is a Genuine OEM Briggs & Stratton part. This governor spring (part number 806872) is for lawn and garden equipment engines. Governor spring 806872 applies tension to the throttle to control engine speed. Disconnect the spark plug wire before in... - Briggs & Stratton Briggs & Statton Lawn & Garden Equipment Engine Governor Spring 806872 Genuine OEM.