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Mercury Custom Spark Plugs

Looking for aftermarket parts to modify or upgrade your Mercury Custom with spark plugs? At Tunersports.com we carry a huge selection of the top name brand performance spark plug parts and accessories.

Spark Plug Parts:

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NGK Standard Spark Plugs

OUT OF STOCK 3112 NGK standard plugs are constructed for longer life and optimum performance.... NGK Standard Spark Plug Box of 10 (B-4L) 1954-1954 Mercury Custom Base $49.40 Details