Tohatsu Water Pump Base Seal Housing Four Stroke 25HP & 30HP.Part numbers: 346-65017 - pump case, 346-65013 - oil seal & 336-62415 o-ring.Water pump base, o-ring and drive shaft seal.To fit the following four stroke models: MFS 25 B/C.MFS 30 B/C.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 32 E:205216401174 )