This listing is for a set of four (4) spark plugs SP478X (updated part number from the SP-478). The spark plugs are from Motorcraft and they are an OE service replacement part. The spark plugs are NEW and unused. The part number on the spark plugs for this listing is AZFS-32-FEX (replacing the AZFS-32-FEX). These plugs are finewire platinum center electrode. Recommended service intervals on these plugs are up to 100,000 miles depending on driving conditions. Retail on the set of four is over $43.00. I also have other Motorcraft spark plugs in stock including colder heat ranges on these applications. Email me if interested. On the listing below, following the engine size is the engine ID code. This is the eighth digit of your vehicle's VIN number. These plugs are for the following applications.
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