Premium Platinum Spark Plug – Unmatched Performance & Durability
High-grade platinum center electrode ensures superior conductivity, reducing voltage requirements for faster starts and smoother idling. Precision laser-welded tip resists corrosion, extending lifespan up to 3X longer than standard copper plugs. Ideal for modern fuel-injected engines, turbocharged systems, and high-mileage vehicles. Optimized heat dissipation design prevents pre-ignition, maintaining peak combustion efficiency in extreme driving conditions. OEM-spec SP-411 model guarantees perfect fit for AYFS22FM applications. Engineered with ceramic insulator and triple gasket seal to eliminate misfires and reduce emissions. Buy in bulk for fleet maintenance or resale—wholesale pricing with global shipping. Trusted by professional mechanics for consistent cold-weather performance and fuel economy boost.