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Det-Mar (Detroit-Marine) - Gray Face / Black Bezel / White - Black Text / White Needle
inside looks very clean yet
150 HP--1978 & Newer
Intake Manifold Assembly: 386240
Some of the hoses had the part numbers stamped on them and others I've had to deduce which part it likely is
MerCruiser 75574 4.1L 165hp 6cyl GM Harmonic Balancer Crankshaft Pulley Damper Exhaust Tubes Det-Mar (Detroit-Marine) - Gray FaceItem Details Removed from GM 165hp 250cid 4. 1L 6cyl Mid to Late 1970's applications until 1981 but mainly dependent on the serial number Part number 75574 (Used with Serial numbers 4609544 & Up) Your serial number should be on a metal plate near the rear of the block or on a sticker on the valve cover Original Paint Rubber is in acceptable condition, but not perfect, face side looks good. (see pictures) Yours should looks just like this. Freshwater
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