Baldwin Filter BF791 Fuel Filter Descriptions : Microlite Fuel/Water Separator Spin-onFits : Crusader, Mercruiser, Volvo-Penta EnginesReplaces : Mercruiser 3560494Thread : 11/16-16O.D. : 3 11/16 (93.7)Length : 3 7/8 (98.4)I.Gskt : G381-A