*Price is PER PLUG!
NGK Iridium IX spark plugs are a high quality performance spark plug featuring an iridium tip for very consistent and stable spark. Iridium also has a very high melting point which keeps it functional in a high heat, high performance engine. The Iridium IX spark plug also features special plating to resist corrosion and seizing.
Commonly used in the Mazdaspeed 3, Mazdaspeed 6, Mazda CX-7 and other engines. This is a one step colder plug (higher heat range) when using on the MZR DISI engine.
LTR7IX-11 NGK Iridium IX Spark Plugs Step Colder
554: 5K Ohm
Center Electrode Core Material: Copper Core
Center Electrode Tip Material: Iridium
Gap Size: 0.044
Ground Configuration: Standard
Ground Electrode Core Material: Nickel Core
Ground Electrode Quantity: 1
Ground Electrode Tip Design: Taper Cut
Hex Size: 5/8"
Insulator Height: 53.00
Manufacturer Heat Range: 7
Seat Type: Tapered
Thread Diameter: 14.00