Top 10 Best Acdelco Spark Plugs

Iridium offers excellent engine idle stability and smooth performance. Iridium allows for small, efficient electrode designs for reliable cold starting and quick acceleration. Iridium fine-wire electrode helps burn away carbon deposits on the tip of the plug as they form. One piece suppressor seal helps block radio frequencies that can affect vehicle electronics. Suppressor seal meters spark energy for long electrode life and helps prevent combustion leakage. Some ACDelco GM Original Equipment parts may have formerly appeared as GM Genuine Parts OE or ACDelco Professional. ACDelco GM Original Equipment parts are designed, engineered and tested to rigorous standards, and are backed by General Motors. GM Engineers design and validate OE parts specifically for your Chevrolet, Buick, GMC, or Cadillac vehicle. GM regularly updates production and service part designs to integrate new materials and technologies.

Iridium is the latest in spark plug technology and is an exact replacement for vehicles' original components. Iridium composition provides a high melting point and great strength, helps to provide excellent wear resistance and durability. Iridium offers excellent engine idle stability, reliable cold starting, quick acceleration and smooth performance. Three Piece Fired in Suppressor seal meters spark energy for long electrode life, helps prevent combustion leakage and helps block radio frequencies that can affect vehicle electronics. Some ACDelco GM Original Equipment parts may have formerly appeared as GM Genuine Parts OE or ACDelco Professional. ACDelco GM Original Equipment parts are designed, engineered and tested to rigorous standards, and are backed by General Motors. GM Engineers design and validate OE parts specifically for your Chevrolet, Buick, GMC, or Cadillac vehicle. GM regularly updates production and service part designs to integrate new materials and technologies.

Double platinum point pad on center and ground electrode offer excellent durability and consistent voltage demands to help reduce wear on ignition system. The same performance as your GM vehicle's original factory component. Spark plug distributor boot shape and materials provide proper fit, installation, and water-tight seal. Pure copper core results in cooler electrode temperature for maximized durability and fouling resistance.

One-piece, fired-in suppressor seal blends three glass types for a gas-tight seal that helps reduce radio frequency and engine interference, regulate spark plug energy, and protect against compression pressures for long life. Double platinum point pad on center and ground electrode offer excellent durability and consistent voltage demands to help reduce wear on ignition system. Pure copper core results in cooler electrode temperature for maximized durability and fouling resistance. Some ACDelco GM Original Equipment parts may have formerly appeared as GM Genuine Parts OE or ACDelco Professional. ACDelco GM Original Equipment parts are designed, engineered and tested to rigorous standards, and are backed by General Motors. GM Engineers design and validate OE parts specifically for your Chevrolet, Buick, GMC, or Cadillac vehicle. GM regularly updates production and service part designs to integrate new materials and technologies.

Wire conductor, wire length, and diameter help provide maximum spark delivery and protection. Spark plug distributor boot shape and materials provide proper fit, installation, and water-tight seal. Terminal design improves spark plug retention and assists installation with excellent corrosion resistance. Insulator employs high dielectric materials.

Copper core thermal properties provide great heat transfer and increased plug durability. Available for use in marine applications. Features a ribbed suppressor seal which extends resistance and prevents spark flash-over and misfire. Black onyx coating helps prevent corrosion.

Solid state suppressor, with two-piece glass and brass seal, can help reduce radio frequency interference, regulates spark energy for long electrode life, and helps protect against high combustion pressures. Pure copper core provides great heat transfer and helps maximize plug durability. Platinum on center electrode enables superior spark characteristics and can reduce voltage requirements of the ignition system. Ribless insulator helps optimize plug to boot seal. Some ACDelco Gold parts may have formerly appeared as ACDelco Professional. Premium aftermarket replacement part. Manufactured to meet specifications for fit, form, and function for General Motors vehicles as well as most makes and models.

Wire conductor, wire length, and diameter help provide maximum spark delivery and protection. Spark plug distributor boot shape and materials provide proper fit, installation, and water tight seal. Boot Type Solid. Terminal design improves spark plug retention and assists installation with excellent corrosion resistance. Insulator employs high dielectric materials.