Box of 4 Genuine Autolite 403 Copper Resistor Spark Plugs

Description

Brand New Box of 4 Genuine Autolite Spark Plugs…

· Brand New Box of 4 Autolite Spark Plugs

· Genuine Autolite Part # 403

• Copper-glass seal bonded insulator, terminal post, and center electrode provide a tight seal that is 100 percent leak-proof
• Multi-rib insulator reduces danger of “flash-over” to prevent misfires
• Full copper core electrode improves heat transfer and optimizes plug life
• Copper core center electrode provides higher thermal conductivity
• Features high alumina ceramic for high dielectric strength and steel shell for installation robustness