What autos use ACDelco spark plugs CR43TS?

ACDelco spark plugs CR43TS are commonly used in various General Motors vehicles, particularly older models of Chevrolet, Buick, and GMC. They are often found in engines such as the 3.0L and 3.8L V6 engines. However, it's essential to consult the owner's manual or a parts catalog to confirm compatibility with specific models and engine configurations, as usage can vary by year and engine type.