The NGK 3690 Iridium IX Spark Plug (TR7IX) is designed to enhance the performance and efficiency of high-performance engines. Featuring a fine-wire iridium center electrode, this spark plug delivers a more focused and consistent spark, leading to improved fuel combustion, smoother engine operation, and better fuel economy. Its iridium construction significantly extends the plug's lifespan, reducing the need for frequent replacements and lowering maintenance costs. With robust anti-fouling properties, the TR7IX spark plug ensures consistent, dependable performance even under challenging conditions. Ideal for enthusiasts and professionals alike, this spark plug is perfect for those seeking reliable and long-lasting engine performance.

Part number: TR7IX