Copper-glass seal bonds insulator, terminal post, and center electrode together to provide a tight seal that is 100 percent leak-proof
Cold-formed steel shell and precision rolled threads, with one-piece terminal post to add strength
Multi-rib insulator reduces danger of ''flash-over''
Resistor reduces radio frequency interference (RFI) and electrode erosion
Full copper core electrode provides better performance in all conditions

Technical Details

Product Details

Product Dimensions

Package Dimensions
Width : 1.2 inch
Height : 1.1 inch
Length : 3.8 inch

Item Weight: 0 ounce (View shipping rates and policies)
Shipping Weight: 3.2 ounce (View shipping rates and policies)

ASIN : B000CILQ1W

Product Description

Autolite Copper Core spark plugs deliver quick starts, good fuel economy, and smooth acceleration. The copper-glass seal bonds insulator and terminal post center electrode together to ensure full required voltage at spark gap, creating a gas-tight seal that is 100 percent leak-proof. Copper Core spark plugs feature a cold-formed steel shell and precision rolled threads, and a one-piece terminal post that adds strength. The multi-rib insulator reduces the danger of ''flash-over'' to prevent misfires, and the resistor reduces radio frequency interference (RFI) and electrode erosion. The full copper core electrode provides better performance in all conditions. Autolite Copper Core plugs are your industry standard.