The NGK 6176 Laser Iridium High Ignitability spark plug is a replacement plug for 2005-2018 Toyota, Lexus and Lotus models. It has M14-1.25 threads, a 1.043 in. reach, a 5/8 in. (16 mm) hex and a heat range of 6. An iridium alloy center electrode paired with a fine platinum ground electrode tip supports more complete combustion and smoother idle.

NGK 6176 Laser Iridium High Ignitability Spark Plug Features:

• Fits 2005-2018 Toyota, Lexus and Lotus models; see Fitment tab for all applications
• M14-1.25 metric thread with 1.043 in. reach
• 5/8 in. (16 mm) hex
• Flat seat with crush washer installed
• Heat range 6
• 0.044 in. factory pre-gap
• Iridium center electrode tip with platinum ground electrode tip
• Resistor type (5000 ohm) for ignition noise suppression
• Non-removable nut terminal
• 1.990 in. insulator height
• High ignitability design pairs an iridium alloy center electrode with a fine platinum ground electrode tip
• Fine ground electrode tip supports more complete combustion, smoother idle and quicker throttle response
• Copper core center electrode draws heat away from the firing end
• Trivalent metal plating resists corrosion and thread seizing
• Intended for engines that originally used high ignitability iridium plugs
• Sold individually