Upgrade your vehicle's performance with the 4-pack of Genuine GM ACDelco Spark Plugs R44TS. Designed to provide reliable ignition and optimum combustion, these spark plugs are a direct replacement for select GM models, ensuring a perfect fit and easy installation. The durable metal finish resists corrosion, while the set of four plugs is engineered to enhance your car's gas mileage and engine efficiency. With part numbers that include 19354427 and R44TS, these spark plugs are the result of quality craftsmanship from ACDelco Professional, featuring a 6-volt rating for consistent operation. Whether you’re maintaining your daily driver or tuning a performance vehicle, this bundle of spark plugs is tailored to meet the needs of your engine, delivering the dependability and longevity you expect from a trusted brand..