4 Pcs Iridium Platinum Spark Plugs For Chevrolet Equinox - Malibu - Cruze - GMC Terrain - [Vehicle Fitment]: _x000D_ Compatible with Buick Cascada - L4 1.6L, _x000D_ Compatible with Encore - L4 1.4L(Engine Code: LE2); _x000D_ Compatible with Chevrolet Cruze - L4 1.4L(Engine Code: LE2), _x000D_ Compatible with Cruze - L4 1.4L(New Model, Engine Code: LE2), _x000D_ Compatible with Equinox - L4 1.5L, _x000D_ Compatible with Malibu - L4 1.5L, _x000D_ Compatible with Malibu - L4 1.5L(New Model); _x000D_ Compatible with GMC Terrain - L4 1.5L---Gap 0.028 inch _x000D_ _x000D_ [Reference Number]: 91970, ILNAR8B7G, 90644, 12683541, 55490097 _x000D_ _x000D_ [Specifications]: _x000D_ Center Electrode Tip Material: Iridium; _x000D_ Center Electrode Core Material: Platinum; _x000D_ Resistance (ohms): 5000; _x000D_ Gap Size (IN): 0.028 _x000D_ Hex Size (IN): 0.55; _x000D_ Insulator Height (mm): 52.50; _x000D_ Reach (mm): 25.00; _x000D_ Thread Diameter (MM): 12.00 _x000D_ _x000D_ [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_x000D_ _x000D_ _x000D_ _x000D_