Description:

Superior Performance: Faulty spark plugs can cause rough idling, engine vibration, and poor acceleration. Our high-performance spark plugs deliver unmatched reliability and power, ensuring smoother engine operation and a more comfortable driving experience. Vehicle Fitment: for Buick Century 3.3L 1989-1993, for Buick Century 3.8L 1986-1988, for Buick Electra 3.8L 1986-1987, for Buick LeSabre 3.0L 1986, for Buick LeSabre 3.8L 1986-1988, for Buick Riviera 3.8L 1986-1987, for Buick Skylark 3.0L 1986-1988, for Buick Skylark 3.3L 1989-1993, for Buick Somerset 3.0L 1986-1987, for Buick Somerset Regal 3.0L 1985, for Cadillac DeVille 4.1L 1982 and more. As follows: Product Description. (Quick search method: Ctrl+F/Command+Space). Spark Plug Specification: Center Electrode Core Material: Iridium, Center Electrode Tip Material: Iridium, Gap Size (IN): 0.047-0.051, Hex Size (IN): 5/8 IN, Installation Depth: 50.5 MM, Manufacturer Heat Range: 5, Reach (IN): 0.708, Resistance (ohms): 5000, Thread Diameter (MM): 14. Quick ignition & smooth power: Our high performance spark plugs, meeting or exceeding OEM spark plugs standards, enable effortless installation. Designed for superior cold start performance, they ensure reliable engine ignition even in freezing conditions. Perfect spark plugs for cars needing enhanced acceleration.