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This the newer style engine coupling assembly used on MerCruiser GM 120hp 2
220 HP--1987-1988
but will work for all engine configurations from that time period
Pull handle has some damage on rubber still functions great
Stamped Part Numbers: 550570
MerCruiser 37-37291 45490 Oil Dipstick Gauge GM 120hp 140hp 2.5L 3.0L 1972-1978 Boat Cleats This the newer style enginePart Number(s) Included MerCruiser 45490 Oil Dipstick Gauge MerCruiser 37 37291 Oil Dipstick Tube Replaces 37 34540 and was replaced by 87717A1 (which I believe is the longer one with the threaded end for an oil suction connection General Application Compatibility MerCruiser 110hp 120hp & 140hp GM 4cyl applications 1963 1980ish in this format but will really work with all of them into the late 90's as they used the same shape of the oil pan for a