Iridium Spark Plugs

Iridium Spark Plugs are engineered to offer excellent engine idling stability and a smooth performance.

• Iridium offers excellent engine idle stability and smooth performance
• One-piece suppressor seal blocks radio frequencies that can affect vehicle electronics
• Suppressor seal meters spark energy for long electrode life and seal against combustion leakage

Platinum Spark Plugs

Platinum spark plugs are designed to deliver long-lasting performance and maximize durability.

• One-piece, fired-in suppressor seal blends three glass types for a gas-tight seal
• Helps reduce radio frequency and engine interference, regulate spark plug energy and seal against compression pressures for long life
• Double platinum point pad on center and ground electrode offers durability and consistent voltage demands to help reduce wear on ignition system
• Pure copper core results in cooler electrode temperature for durability and superior fouling resistance

RAPIDFIRE Spark Plugs

RAPIDFIRE spark plugs are made with ribless insulators to help optimize plug-to-boot seal.

• Solid-state suppressor with two-piece glass and brass seal
• Helps reduce radio frequency interference, regulate spark energy for long electrode life and 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 helps reduce voltage requirements of the ignition system
• Ribless insulator provides a great plug to boot seal

Conventional Spark Plugs

Designed with a high-quality copper core, these spark plugs help deliver reliable performance.

• Black onyx coating helps prevent corrosion
• Copper core provides great heat transfer and helps maximize plug durability
• Ribbed suppressor seal extends resistance and helps prevent spark "flash over" and misfires
• Nickel-chrome alloy sheathing helps prevent corrosion on center electrode
• Available for use in marine applications