Autolite Iridium XP Automotive Replacement Spark Plugs, XP5243 (4 Pack)

Autolite Iridium XP spark plugs (Model XP5243-4PK) combine advanced iridium core technology with a nickel top for reliable ignition and extended service life. Engineered in the USA, these replacement spark plugs offer a 0.6 mm finewire iridium center wire for focused ignition, improved fuel efficiency, and durability up to 100,000 miles depending on engine type. Package includes 4 iridium spark plugs. Designed for vehicle-specific fit for cars and trucks and backed by an Autolite limited lifetime warranty. Thread size 16; Ideal for both domestic and foreign makes and models. Autolite has produced high-quality ignition products since 1936.

• EXTENDED CHANGE INTERVAL: The Autolite Iridium XP automotive replacement spark plug is engineered to last for up to 100,000 miles depending on engine type making it one of the most durable spark plugs on the market today
• FUEL EFFICIENCY: These spark plugs utilize a 0.6mm finewire iridium centerwire tip design with laser welded technology for maximum fuel efficiency. Our finewire electrodes produce more focused and consistent ignitability resulting in less fuel consumption
• OPTIMAL PERFORMANCE: This replacement iridium spark plug provides better durability and a more focused ignition for better overall ignitabilty and optimal performance
• AUTOLITE ADVANTAGE: Autolite has been producing spark plugs since 1936 making it one of the most trusted and reliable brands for your OE replacement spark plug needs
• CONSTRUCTION: Every iridium spark plug comes with a platinum protected ground wire for maximum efficiency in all ignition types including DIS systems and a V-trimmed ground electrode for improved ignitability