Model and serial#

[barry-snow]

I recently purchased a used boat and motor. The plate containing the serial number has become damaged over the years and the entire number is not readable.
I can only read the last 6 digits clearly.
I am trying to determine the model and hopefully complete serial of my motor.
What I do know is It is a 1988 70hp Mercury.
It has 3 cylinders,
It has electric start
It has power tilt and trim
it is oil injected.

Serial number digit #1 is gone completely
digit #2 is either a 8 or a 3
digits #3 thru 8 are 344465

What is the model of this motor ?
There is no local dealer in the area I live so I am looking to order parts online and want to make sure I order the right parts.

[jerryjerry05]

Someplace on the motor block is a shiny freeze plug taht should have the #s in Maybe starting with an 0G then 6 numbers