The NGK SILMAR9F9 Laser Iridium spark plug for Kawasaki KRX1000 TERYX EPS eS 4X4 USA 2021-2025 ensures long-lasting performance and maximum ignition efficiency. Its ultra-thin iridium center electrode delivers powerful combustion and improved fuel economy. Designed for modern high-performance ATVs, it offers fast throttle response and excellent durability.