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 Case 1623-815822A36 / 28000 Piston Ring R09-601-04 Piston Kit 09-741-04