300c (03-08 5.7L, 06-10 6.1L, 11+ 6.4L)

• Resistor: Yes
• Manufacturer Heat Range: 5
• Electrode Core Material: Copper
• Electrode Tip Material: Iridium
• Insulator Type: Projected
• Spark Plug Thread Size: 14mm
• Spark Plug Reach: 25mm
• Spark Plug Seat Style: Tapered
• Wrench Diameter: 5/8 in.
• NGK Part Number: LZTR5AIX-13