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Mounting Style
Please ask if you have any other questions about these parts or are unsure if this will work for you
just check the stamping
Splines in good condition
MerCruiser 46421A2 140hp 3.0L Valve Cover Rocker GM 120hp 2.5L 4cyl 1964-1972 Exhaust Boots Mounting StylePart Number(s) Included MerCruiser 46421A2 46421 (Stamped) Valve Rover Cover (Aluminum) Superseded Equivalent Possibly Related P N: 32732 46421A2 55429A3 (Location of oil breather changed on this model) General Application Compatibility This would have been found on MerCruiser 120hp 2. 5L 4cyl & MerCruiser 140hp 3. 0L 4cyl Models From the late 60's until probably 1969 that did not have the separate big hose for a carburetor flame arrestor vent tube.