Autolite Spark Plug 303 with 14mm Thread and Gasket Seat

The Autolite Spark Plug 303 features a 14 mm thread diameter and a 0.375-inch reach, designed to deliver reliable ignition performance across a variety of engine types. Built with a resistor to reduce electromagnetic interference, this spark plug ensures consistent spark and smooth engine operation. Its gasket seat design provides a secure fit, promoting optimal heat transfer and preventing leaks. Suitable for gasoline engines, the Autolite 303 spark plug is engineered for durability, offering long-lasting performance and ease of installation. Its compact dimensions make it compatible with many vehicle models, supporting efficient engine combustion and enhanced fuel economy.

Features:

• Thread Size: 14 mm for secure fit and reliable ignition

• Reach: 0.375 inches for proper installation depth

• Gasket Seat: Ensures a tight seal and prevents leaks

• Resistor: Reduces electromagnetic interference for stable operation

• Universal compatibility: Suitable for various gasoline engines