Replace Ford Focus Spark plugs iridium & Ford Focus Ignition plug. Find Ford Focus Double platinum plug. Browse Ford Focus Glow heater plug. Maintaining optimal performance in your Ford Focus starts with the heart of combustion: the spark plugs. Regular inspection and timely replacement of worn plugs can prevent misfires and ensure smooth engine operation. To extend their lifespan, ensure your vehicle undergoes routine check-ups and adhere to manufacturer-recommended replacement intervals. When choosing new spark plugs, opt for iridium or platinum for longevity and performance, or copper for a cost-effective solution. Always select the correct specification for your Focus model for peak efficiency. Remember, a seamless installation guarantees your Focus runs at its best, so consider professional installation if you're not mechanically inclined. Shop our premium selection of spark plugs tailored for your Ford Focus and keep your ride firing on all cylinders.