4PCS NGK Iridium IX 3521 CR9EIX Spark Plugs - High Performance

Product Highlights Outstanding Acceleration: Upgrade your vehicle's performance with NGK Iridium IX 3521 Spark Plugs (CR9EIX). The iridium center electrode delivers maximum spark energy, ensuring higher ignitability and improved acceleration compared to standard plugs. Exceptional Durability: Built to last 40,000-50,000 miles, these plugs feature trivalent metal plating for superior anti-corrosion and anti-seizing properties. Designed to handle high temperatures, they are perfect for fuel-injected and turbocharged engines. Trusted Quality: Manufactured by NGK, the world leader in spark plug technology. With over 85 years of innovation, NGK ensures top-notch performance and reliability in every product. Compatible Models See the listed models for recommended gap settings: Ranger 900 Xtreme Performance 2013 (gap 0.031) Ranger RZR 570 2012-2013 (gap 0.031) Ranger RZR 900 Xtreme Performance 2011 (gap 0.030) Ranger RZR 900 Xtreme Performance 4 2012 (gap 0.031) 749 2004-2005 (gap 0.03