4x NGK Iridium IX Spark Plug Stock 3691 Nickel Core Tip Taper Cut 0.040in TR8IX
NGK Iridium IX Spark Plugs Utilize A 0.6 Mm Iridium Center Electrode & Taper Cut Ground Electrode For Faster Starts, Better Acceleration & Improved Anti-Fouling. They Also Feature Trivalent Shell Plating For Superior Anti-Corrosive & Anti-Seizing Properties.

Item Specifics

ModelNGK Iridium IX Spark Plug
Reach17.5mm
Gap Size0.040 in
Hex Size5/8""
Quantity4
Seat TypeTapered
Resistance5K ohms
Thread Diameter0.551 in
Insulator HeightISO
Ground ConfigurationStandard
Manufacturer Heat Range8
Ground Electrode Quantity1
Ground Electrode Tip DesignTaper Cut
Center Electrode Tip MaterialIridium
Center Electrode Core MaterialCopper Core
Ground Electrode Core MaterialNickel Core