Description

Brand New Box of 4 Genuine Autolite Spark Plugs

Brand New Box of 4 Autolite Spark Plugs

Genuine Autolite Part # 4163

• Full copper core electrode with necked down tip for improved ignitibility provides better performance in all conditions
• Cold-formed steel shell and precision rolled threads, with anti-corrosive nickel plated shell
• Gas-tight seal (100 percent leak-proof) and reduced RFI (radio frequency interference)
• One-piece terminal post for added strength and multi-rib insulator reduces danger of “flash-over”
• Copper-glass, resistive seal bonds insulator, terminal post, and center electrode together ensures full required voltage at spark gap