Products MercuryGear Case / Drive Shaft Case Back Upper Gear Case 1547-9412A18 / 19000 Item number: 1547-9412A18 Similiar number: GLM 19000 For MC-I, R, MR, Alpha One (1972-1990) You May Also Be Interested In Upper Gear Case 1547-9412A18 / 19000 Gear Housing 1623-8951A37 / 18000 Forward Gear Set 43-828072A2 / 43-878087A2 / 828072A2 / 878087A2 Washer 92990-06600