MerCruiser 936-3549 GM 2773306 120hp 2.5L 4 cyl Cylinder Head OMC Stringer 64-72 Dipsticks and Tubes Ignition Coil 817378T / 817378

Ignition Coil 817378T / 817378 / 898253T27

1960 1961 1962 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973

I think the manual does reference this as 85785A2

inside is pretty clean

Case: 277273 277274

MerCruiser 936-3549 GM 2773306 120hp 2.5L 4 cyl Cylinder Head OMC Stringer 64-72 Dipsticks and Tubes Ignition Coil 817378T / 817378Item Details Commonly Found on MerCruiser & OMC GM 2. 5L 120hp models before 1972 Cannot be used with 3. 0L 140hp models Really Great shape, No cracks or welds. MerCruiser 936 3549 936 2284 Technically Can be used to replace 936 5319 if you use the correct style of spark plugs (Champion RN5C) This is the early Pre 1972ish style that takes the "gasket crush washer" spark plugs (13 16" socket rather than 5 8") MerCruiser serial numbers 3825578 & Below