MerCruiser 37-37291 45490 Oil Dipstick Gauge GM 120hp 140hp 2.5L 3.0L 1972-1978 Water Pumps You will receive both items

You will receive both items in the set as pictured

Mercury 300 30hp

Fresh water use

32-47640 / 32-96879 Water Distribution Hose (block to water pump)

I'm unsure of the carburetor that normally would go on this

MerCruiser 37-37291 45490 Oil Dipstick Gauge GM 120hp 140hp 2.5L 3.0L 1972-1978 Water Pumps You will receive both itemsPart 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