4 Pack NGK 3657 Laser Iridium Spark Plugs IZFR5K11

This product is a 4 pack of NGK V-Power 3657 Spark Plugs featuring an Iridium construction. Made in Japan, these spark plugs are designed for gasoline engines and provide performance benefits. They have a standard configuration and are considered vintage with universal fitment. The manufacturer part number is 3657 and the OE/OEM part number is NGK 3657. Provides reliable ignition and enhanced engine performance Built with high-quality materials for durability Compatible with various automotive makes and models Optimized electrode design for efficient combustion Ensures smooth engine startup in all weather conditions Designed to reduce emissions and improve fuel efficiency Direct OEM replacement for easy installation