Double Platinum Spark Plug

The AC Delco 41-962 GM Original Equipment Double Platinum Spark Plug is engineered to meet rigorous standards and is backed by General Motors. This spark plug features a pure copper core for improved durability and resistance to fouling, contributing to a more reliable ignition system. Its one-piece, fired-in suppressor seal is constructed with three glass types, creating a gas-tight seal that helps prevent radio frequency and engine interference. This design also helps regulate spark plug energy and protect against compression pressures, ensuring longevity. The double platinum point pads on both the center and ground electrodes provide exceptional durability. This design ensures consistent voltage demands, which in turn helps to reduce wear on the vehicle's ignition system. The spark plug has a gap size of 0.040 inches (1.02 mm), a reach of 0.689 inches, and a 14mm thread size. Some sources indicate potential compatibility issues with certain model years, such as the 2012 Tahoe with a 5.3L engine, where these plugs may not be interchangeable. Always confirm fitment with your vehicle's specifications before installation.