{"product_id":"replaced-by-sp439ax-spark-plug-sp439a","title":"REPLACED BY SP439AX. SPARK PLUG - Motorcraft SP439A","description":"\u003cp\u003e\u003cstrong\u003e[\"Laser Platinum Spark Plug\", \"75,000 mi OE Mfr Recommended Service Interval\", \"Plug Material: Double Platinum\", \"Gap 0.044\\\"\", \"Interchangeable with SP-439-AX\"]\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSpark plugs ignite the compressed air\/fuel mixture in each cylinder, and their condition directly affects combustion efficiency, fuel economy, and emissions. Signs of worn plugs include: difficulty starting, a rough idle, a hesitation or misfire under acceleration, reduced fuel economy, or a check engine light with misfire codes. Replace spark plugs on schedule - new plugs restore clean ignition performance and can noticeably improve fuel economy.\u003c\/p\u003e\n\u003cp\u003eMotorcraft is Ford Motor Company's OE parts brand, manufacturing components to exact factory specifications. Of particular relevance for Mazda owners: during Ford's partnership with Mazda (2000s-2010s), many Mazda vehicles including the Speed3, Speed6, and NC Miata shared Ford platforms and components. Motorcraft represents legitimate OE-quality parts for these Ford-era Mazdas.\u003c\/p\u003e","brand":"Motorcraft","offers":[{"title":"Default Title","offer_id":44315316256819,"sku":"MI-SP439A","price":8.84,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0579\/9709\/9059\/files\/MI_SP439A_Fro.jpg?v=1778794897","url":"https:\/\/daybreakauto.com\/products\/replaced-by-sp439ax-spark-plug-sp439a","provider":"Daybreak Auto Parts","version":"1.0","type":"link"}