Autolite [AI5245] Iridium Ultra Spark Plugs

Autolite® Iridium Ultra® is equipped with a laser welded iridium enhanced fine-wire center electrode that ensures your engine runs at maximum performance; while its double precious metal design provides increased durability, allowing your engine to maintain desired performance levels for longer. Iridium Ultra delivers optimal fuel efficiency, acceleration, and ignitability, making it the best OE replacement plug choice for modern engines.

• Engineered with an iridium-enhanced laser-welded fine-wire center electrode that provides focused ignition, optimal ignitability, and maximum performance.
• Its proprietary platinum ground electrode provides increased durability and resistance to wear, extending the life of the plug.
• The tapered ground wire enhances ignitability for improved combustion and performance.
• The high alumina ceramic multi-rib insulator insulator provides thermal conductivity and superior insulation for increased strength & prevents flash-over.
• The copper core within the plug provides reliable performance with higher thermal conductivity.
• Includes a lifetime limited warranty that guarantees optimum performance equal to OE designed plugs.