NGK Iridium IX spark plugs feature an ultra-fine center electrode that's designed just thick enough to ensure the maximum durability and life of the spark plugs—and just thin enough to create an accurate and consistent spark. They represent the ultimate evolution of spark plug technology and performance. Iridium is the hardest metal used in spark plugs today—six times harder than platinum. This allowed NGK engineers to reduce the voltage requirement for a spark. Iridium IX plugs are available in more than a hundred configurations for universal and vehicle-specific applications.

More From This Category

MSD Spark Plug Wires, Copper, Silicone, Straight, 8.5mm Dia., Red, Pro Drag Racing, Set

MSD Spark Plug Wires, Copper, Silicone, Straight, 8.5mm Dia., Red, Pro Drag Racing, Set

$287.18

View
Scott Drake Classic Spark Plug Wire, Blue, Each

Scott Drake Classic Spark Plug Wire, Blue, Each

$154.83

View
MSD Spark Plug, Standard, Gasket Seat, Iridium, 14mm Thread, 0.3750 Reach, 13/16 Hex, Set of 4

MSD Spark Plug, Standard, Gasket Seat, Iridium, 14mm Thread, 0.3750 Reach, 13/16 Hex, Set of 4

$61.06

View
MSD Spark Plug Wires, Copper, Silicone, Multi-Angle, 8.5mm Dia., Red, GM LS Engines, Set

MSD Spark Plug Wires, Copper, Silicone, Multi-Angle, 8.5mm Dia., Red, GM LS Engines, Set

$304.19

View