Premium High-Sensitivity Spark Plug SK20HR11 3421
Engineered for precision and durability, the SK20HR11 3421 spark plug features a high-quality iridium center electrode for superior conductivity and extended lifespan. Advanced ceramic insulation ensures optimal heat dissipation, preventing misfires in extreme conditions. Perfect for high-performance engines, turbocharged vehicles, and heavy-duty automotive applications. Its fine-wire design enhances ignition efficiency, delivering smoother acceleration and improved fuel economy. Designed to OEM standards, this spark plug resists corrosion and carbon buildup, maintaining consistent performance in both gasoline and hybrid engines. Ideal for professional mechanics and car enthusiasts seeking reliability. Global wholesale pricing available—bulk orders get unbeatable discounts. Trusted by automotive workshops worldwide for premium-quality parts at the lowest market rates.