Ford Fiesta / Cadillac Iridium Spark Plug ITV16 5338 High Performance Ignition

If your vehicle experiences rough idle, acceleration stumble, or cold start difficulties and higher fuel consumption, the original spark plugs may be aged or carboned; this ITV16 5338 iridium spark plug ensures strong, precise spark for complete combustion, improving power response, reducing emissions, and prolonging engine life. Fits Ford Fiesta (post-2000), Cadillac, Chevrolet, and Puma etc.; OEM ITV16 5338. Torque to spec with torque wrench; ensure threads are clean to avoid over/under-tightening and cylinder damage.