Mercury 5 hp impeller problems

[RandyGreen]

I have a 2003 mercury 5 hp 2 stroke. My serial # is OT 882162. The motor isn't spitting any water...I think I need to replace the impeller. Can someone tell me what parts with part numbers I need to do the job? My serial number does come up on the parts sites....

[Ski]

I get 16159A 1, Repair Kit, Water pump. I deleted the space after the OT in your serial number (I'm using m own catalog)