Description
[Reference Number]: 127, SIFR6A-11, AI3923, XP3923, SIFR6A11, 22401-AA730, 22401-AA731, 22401AA730, 22401AA731.[Vehicle Fitment]: Compatible with Subaru Legacy 2010-2012 H4 2.5L, Outback 2010-2012 H4 2.5L.[Specifications]: ①Center Electrode Tip Material: Iridium; ②Center Electrode Core Material: Platinum; ③Resistance (ohms): 5000; ④Gap Size (IN): 0.044; ⑤Hex Size (IN): 5/8; ⑥Insulator Height (mm): 50.50; ⑦Reach (mm): 19.05; ⑧Thread Diameter (MM): 14.[Exceptional Ignitability]: Designed alongside OEMs and engineered for maximum ignition performance.[Engineered for Longevity]: For optimal engine performance and longevity, it is recommended to replace platinum iridium spark plugs at mileage intervals of 80,000 to 100,000 miles