Will a Mercury 1999 200hp CXL lower unit fit a Mercury 2001 150 CXL? I have a Mercury 2001 Mercury 150hp CXL (ser# ot3o5297) without a lower unit and I am being offered a 1999 Mercury 200hp CXL lower unit. I have checked the forms and the web and have not found an anwser. Both Motors have an Emission Control Plate on the power heads that has "1999 Aprial 2507cc 150-200 hp, Family XMPXM02-5210, 2507cc> part Number 37-856984 11". I am not sure if that helps. The 1999 does not have a ser# on the motor and was told it was a 1999 200hp CXL and 200hp is on the cover. They both look to be the same lenght. Can anyonr advise me if this will work?