NGK Laser Iridium Spark Plug for GMC YUKON XL 1500 (2001-2009) 6.0L V8 Engine - High Performance Ignition, Improved Fuel Efficiency - Perfect for Off-Roading, Towing & Daily Driving

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.

Engine V8, Engine Size 6.0L/364

Engine Family Chevy small block Gen III/IV (LS-based engines)

Sold Individually

Shorty Spark Plug No, Resistor Yes, Manufacturer Heat Range 5, Electrode Tip Material Iridium, Electrode Core Material Copper, Insulator Type Projected, Spark Plug Thread Size 14mm, Spark Plug, Reach 0.708 in., Spark Plug Seat Style Tapered, Wrench Diameter 5/8 in., Ground Strap Quantity One

NGK IZTR5B11