- OPTIMAL PERFORMANCE: You'll get more durability, greater power, improved heat transfer and more focused ignition power thanks to a unique, patented design that forms a more comprehensive seal of the Autolite High Thread Spark Plugs.
- EASY INSTALLATION: This automotive replacement spark plugs are easy to install because pre-gapped plugs do not require pre-adjustment. They have a better heat transfer than a standard J-gap design.
- CONSTRUCTION: Autolite High Thread Spark Plugs includes a finewire design for more focused ignition power and longer service life. The space-saving benefits of a 10mm spark plug with the durability of a 14mm plug.
- IMPROVED DURABILITY: High Strength Shell to avoid breakage issues, thread positioned above cylinder head seating for a more compressive seal. Autolite High Thread Spark Plugs have a robust ceramic tip reduces the chance of dielectric punctures and a nickel-plated shell
- Designed specifically for Ford 4.6L, 5.4L and 6.8L 3-valve engines
- OPTIMAL PERFORMANCE: You'll get more durability, greater power, improved heat transfer and more focused ignition power thanks to a unique, patented design that forms a more comprehensive seal of the Autolite High Thread Spark Plugs.
- EASY INSTALLATION: This automotive replacement spark plugs are easy to install because pre-gapped plugs do not require pre-adjustment. They have a better heat transfer than a standard J-gap design.
- CONSTRUCTION: Autolite High Thread Spark Plugs includes a finewire design for more focused ignition power and longer service life. The space-saving benefits of a 10mm spark plug with the durability of a 14mm plug.
- IMPROVED DURABILITY: High Strength Shell to avoid breakage issues, thread positioned above cylinder head seating for a more compressive seal. Autolite High Thread Spark Plugs have a robust ceramic tip reduces the chance of dielectric punctures and a nickel-plated shell
- Designed specifically for Ford 4.6L, 5.4L and 6.8L 3-valve engines