Ford Motorcraft Spark Plug for 1986 5.0L and 1983-1990 2.3L Mustangs.Suffering from a fouled spark plug? Replacing your stock spark plugs is a great step for any tune up. Guaranteed to deliver quick starts, good fuel economy and smooth acceleration. This Ford Motorcraft spark plug is an exact, direct replacement for the original plugs that came in your 2.3L or 5.0L Mustang.
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