When you're passionate about performance, you need a technologically advanced plug. Autolite Iridium XP utilizes an iridium-enhanced 0.6 mm finewire and proprietary platinum sidewire for improved durability and a more focused ignition for better overall ignitability providing optimum performance. Now with a lifetime limited warranty.
Type: Extreme Performance
Thread Diameter: 14 mm
Thread Pitch: 1.25 mm
Seat Type: Gasket
Reach: 19 mm
Hex Size: 5/8 in
Terminal Type: Solid
Gap: 0.45 in
Center Electrode Material: Iridium-Platinum
Center Electrode Type: Fine Wire
Center Electrode Size: 0.6 mm
Center Electrode Projection: Projected
Ground Electrode Material: Platinum
Ground Electrode Type: Standard
Resistor: Yes
Heat Range: 2
Ground Electrode Shape: Taper Cut
Resistor Value: 4 kohm
Torque Specs: Cast Iron: 26-29 lb-ft, Aluminum: 15-22 lb-ft