Mercury Mercruiser Marine - SCREW @5 (#10-20089) PRICE: $0.35 $0.27 Part #: 10-20089 This product is no longer available. Mercury Assemblies CYLINDER BLOCK AND CRANKCASE ASSEMBLY MERCURY1000 CYLINDER BLOCK AND CRANKCASE ASSEMBLY MERCURY450 (4 CYL.) MERCURY500 CYLINDER BLOCK AND CRANKCASE ASSEMBLY MERCURY600 (6 CYL.) CYLINDER BLOCK AND CRANKCASE ASSEMBLY MARKMARK 75 CYLINDER BLOCK AND CRANKCASE ASSEMBLY MERCURY400 CYLINDER BLOCK AND CRANKCASE ASSEMBLY MERCURY800 (6 CYL.) CYLINDER BLOCK AND CRANKCASE ASSEMBLY CYLINDER BLOCK AND CRANKCASE ASSEMBLY MERCURY300 350 MARKMARK 35A OIL FILTER AND OIL COOLER CYLINDER BLOCK & CRANKCASE ASSEMBLY (INTAKE SIDE) MARKMARK 50, 50E CRANKCASE ASSEMBLY MARKMARK 20, 15, KH7, WG7 CRANKCASE ASSEMBLY MARKKE7, KF7, KG4, KG7 - 1939 THRU 1953 CYLINDER BLOCK AND CRANKCASE ASSEMBLY (INTAKE SIDE) MARKMARK 40, KG9, KF9 CYLINDER BLOCK AND CRANKCASE ASSEMBLY MARKMARK 30H, 55H CYLINDER BLOCK AND CRANKCASE ASSEMBLY MARKMARK 55AE, 55AM, 58AE, 58E CYLINDER BLOCK AND CRANKCASE ASSEMBLY MARKMARK 10, 10A, 15A, 28, 28A, 28AD CYLINDER BLOCK AND CRANKCASE ASSEMBLY MARKMARK 55, 55E CYLINDER BLOCK AND CRANKCASE ASSEMBLY MARKMARK 30, 30E CYLINDER BLOCK AND CRANKCASE ASSEMBLY MERCURY700 (6 CYL.) CYLINDER BLOCK AND CRANKCASE ASSEMBLY MARKMARK 75A, 78, 78A CYLINDER BLOCK AND CRANKCASE ASSEMBLY