4 Pack Genuine ACDelco R45TS Conventional Spark Plug GM 19157995 19354415

ACDelco GM Original Equipment Conventional Spark Plugs are designed, engineered, and tested to rigorous standards, and are backed by General Motors. When your vehicle struggles with hard starting, rough idling, or engine misfires, replacing worn ignition components can restore smooth acceleration and consistent power. Today's advanced engines demand precise ignition timing, efficient fuel combustion, and consistent power delivery across thousands of firing cyclesѡnd the spark plug stands as the critical component that makes it all possible. Engineered with a core that helps provide great heat transfer and optimize durability, along with a coating that helps reduce corrosion, this part is validated to deliver reliable performance under demanding conditions. By supporting proper timing and working seamlessly with your ignition coil, it prevents hesitation when pressing the gas pedal and plays a vital role in your vehicle emission controls. Whether you are navigating stop-and-go city traffic or taking long highway road trips, a fresh spark ensures reliable cold starts and helps maintain optimal fuel economy. Trust the same spark plug technology that rolled off the assembly line with your vehicle. ACDelco GM Original Equipment parts are the true OE parts installed during the production or validated by General Motors for GM vehicles.