NGK IZFR6N-E 4757 Spark Plug Silver

NGK Laser Iridium spark plugs provide superior ignitability and long service life. Fine wire iridium tipped center electrode and fine wire platinum tipped ground electrode ensures slow wear rate providing stable idle, superior anti fouling, improved fuel efficiency and lower emissions. Features: - Trivalent metal plating provides superior anti-corrosion and anti-seizing properties - Corrugated ribs prevent flashover - Pure alumina silicate ceramic insulator, provides superior strength and better heat transfer - Copper core aids in heat removal - Triple seals prevent leakage Specifications: Shell: - Thread Diameter: 14mm - Thread Pitch: 1.25mm - Seat Type: Gasket - Reach: 19mm (3/4´´) - Hex Size: 5/8´´ (16mm) - Terminal Type: Solid - Overall Height: ISO - Gap.: 031´´ (0.8mm) - Center Electrode - Material: Iridium - Type: Fine Wire - Size: 0.6mm - Projection: Extended Projection - Ground Electrode - Material: Platinum - Type: Standard - Resistor: Yes - Resistor Value: 1K Ohm - Heat Range: 6 - Torque SpecsCast Iron: 18-25.3 lb. ft. Aluminum: 18-21.6 lb. ft.