Gear Cover 4991307 of Cummins 6BTA5.9-M150(SO10480) Marine Engine NO. PART NUMBER PART NAME NO. PART NUMBER PART NAME 5 3913994 Seal, O Ring 10 4991307 Cover, Gear 8 3938156 Gasket, Gear Housing 11 3960319 Gasket, Gear Cover 9 4991305 Seal, Oil 13 5267782 Housing, Gear Remarks: (1) We can provide Gear Cover 4991307 engine parts, as well as 6BTA5.9-M150 genuine …