High-Performance Iridium Spark Plug for Denso SK20HR11 3421
Premium iridium core ensures superior conductivity and extended durability, delivering precise ignition for optimal engine performance. Precision-engineered electrode design minimizes voltage loss, improving fuel efficiency and reducing emissions in gasoline engines. Direct replacement for Denso SK20HR11 3421, compatible with a wide range of vehicles including sedans, SUVs, and light trucks. Exclusive wholesale pricing—buy in bulk for fleet maintenance, auto repair shops, or resale with unmatched cost efficiency. Globally sourced materials meet strict OEM standards, backed by rigorous quality control for reliable long-term use. Ultra-fine 0.6mm iridium tip resists wear under high-temperature conditions, ensuring consistent spark even in extreme climates.