Platinum Spark Plug

The Motorcraft CYFS-12F-5 is a platinum spark plug engineered for consistent ignition performance and durability in a range of domestic vehicle applications. Built with a platinum center electrode tip and a nickel ground electrode tip, the design provides high conductivity and superior resistance to arc erosion and oxidation. This component serves as the original equipment for various Ford, Lincoln, and Mercury models, ensuring the engine maintains the performance standards established during factory manufacturing. With a service interval of up to 100,000 miles, this part helps reduce fuel consumption and optimize emissions output, while acting as a reliable safeguard against false check engine light warnings. Installation requires specific tools including a spark plug socket, torque wrench, extension, and a gap gauge. For certain V6 models, including the 2012 Lincoln MKX, accessing the rear cylinder bank requires the removal of the upper intake manifold. Before removing ignition coils, it is recommended to use compressed air to clear debris from the spark plug hole. When adjusting the gap, ensure the proper-thickness gauge is used, bending the side electrode only as needed. Compatibility is strictly defined for specific engine and transmission configurations, such as the 3.5L Cyclone and 3.7L DOHC engines found in models like the Ford Edge, Explorer, F-150, Flex, Mustang, Taurus, and Transit (2011-2019), as well as the Lincoln Continental (2017-2019), Mark LT (2011-2014), and MKS (2013-2016). This part is not universal and must be verified against specific vehicle year, engine, and drivetrain requirements.