Oil Seal for Briggs and Stratton # 391483S 491483Replaces Part Numbers Briggs and Stratton 391483S 491483OEM Numbers : 391483S 491483Type : Oil SealDescription : Replaces OEM #: Briggs & Stratton 391483S 491483FITS BRIGGS & STRATTON PTO SIDE: 80000, 92000, 110000, 111000 SERIES, 2 THROUGH 5 HP FOR VERTICAL SHAFTS. FITS TECUMSEH PTO SIDE: V17 THRU V30 (EARLIER MODELS). FITS CLINTON PTO SIDE: 900, VS-1100, VS3100, ALSO 405, 407, 409, 415, 499 SERIES.