The serial number was on a plate riveted to the swivel
bracket above and between the clamp screws.
Serial numbers 3761035 thru 4112636 were 1974 models.
Serial numbers 4112637 thru 4310784 were 1975 models.
Serial numbers 4310785 thru 4567951 were 1976 models.
Merc 1150EL
(Long
Shaft, Electric Starting with Alternator) models were produced and Merc 1150 ELPT
(Long Shaft, Electric Starting with factory installed Power Trim) were also
produced in these years.
Gear Lube Drain & Vent Screws with
gaskets 2 of 10-79953T2 (Used as both drain & vent screw on 1974 & prior
models) (1975-76 models use 10-79953T2 for vent screw & 22-67892A06 magnetic
drain screw)
This information has been provided as a courtesy by Bob Grubb
and Grubb's Marine. It is intended for personal use only. Copying and
distributing of this information for any other purpose is strictly forbidden
without the prior written consent of the author.