Tohatsu Water Pump Base Seal Housing Four Stroke 4HP, 5HP & 6HP. Part numbers: 369-65017 - pump case,  369-60223 - oil seal & 369-65020 pump case lower gasket. Water pump base, drive shaft seal and gasket. To fit the following four stroke models:   MFS 4. MFS 5. MFS 6. These are genuine Tohatsu parts, not a pattern / aftermarket item.  If you are in any doubt as to whether this will fit your outboard, please contact us before purchasing. Thank you for looking. (O)