Autolite 25 Spark Plug - Each #AUTL25 2533405 MERCURY GRAND MARQUIS 1980-1991

MERCURY GRAND MARQUIS 1980-1991

Metal surfaces are also coated with an oil layer to help prevent corrosion in wet environments and in off road equipment

For deburring

through the technology "vibration detection"

Autolite 25 Spark Plug - Each #AUTL25 2533405 MERCURY GRAND MARQUIS 1980-1991Autolite 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