Mercury Mariner 73320 87872 Transfer Port Cover Mounting Plate 75hp 80hp 85hp Water Pumps The stampings on these are

The stampings on these are important and DO NOT mix & match these ignition amplifiers just because they look the same

This type of trim arm would have been found in late 1960's/70's/80's right up until 82'ish MerCruiser power systems

West Marine

0L 140hp models

but found on 120hp / 2

Mercury Mariner 73320 87872 Transfer Port Cover Mounting Plate 75hp 80hp 85hp Water Pumps The stampings on these arePart Number(s) Included Mercury Mariner 73320 Transfer Port Top Cover Mercury Mariner 87872 Transfer Port Bottom Cover Mercury Mariner 73395 Ignition Coil Mounting Plate Mercury Mariner 90332 Switch Box Mounting Plate (Stamped 90331) General Application Compatibility (Regarding Transfer Ports) Removed from a 1981 Mercury Mariner 80hp "800" 4cyl Outboard (Serial Number 5894097) Found on 1976 1977 "850" 85hp 4cyl Models Found on 1978 1983 "800" 80hp