NGK Double Platinum Spark Plug PTR5A-13 2467, specially designed for Buick Royaum 2.8L/3.6L

Buick Regal 2.8L and 3.6L engines (2000-2007) use NGK double-platinum spark plugs PTR5A-13 2467 to ensure efficient and stable ignition. Double platinum electrodes offer longer life and precise spark control, significantly improving fuel economy and throttle response. OEM number PTR5A-13【2467】for inventory checks. Replacement difficulty medium; torque wrench recommended; resistance 6 kΩ; thread size M14x1.25.