Briggs & Stratton 799585 Fuel Tank Cap Replaces 799684 Briggs &amp; Stratton 799585 Genuine Briggs &amp; Stratton Fuel Tank Cap For use with 550e & 550ex Series, 625e, 675ex & 725ex Series and Professional Series 7.75-8.75 Engines Replaces Old Briggs # 799684