Autolite High Thread Pro Spark Plugs

Autolite High Thread Pro spark plugs are an OE patented design exclusively for Ford 3V engines. Their comprehensive seal provides more durability, greater power, improved heat transfer, and a more focused ignition, ensuring your engine reaches and maintains optimal performance levels.

Autolite High Thread Pro Spark Plugs feature:

* Engineered with a fine-wire platinum design that provides more focused ignition power and longer service life
* The ground strap provides improved heat transfer over standard J-gap plugs
* Proprietary design improves performance for heat management, fouling resistance & increased dielectric strength
* The position of the thread above the cylinder head seating allows for a more compressive seal
* Designed with a nickel-plated shell that delivers increased protection against corrosion
* 4 year limited warranty Show Less