NGK BR9EIX Iridium IX Spark Plug with 14mm Thread and Gasket Seat

The NGK BR9EIX Iridium IX spark plug is designed for high-performance automotive applications, featuring a 14 mm thread size and a 0.749-inch reach for optimal fit and efficiency. Constructed with durable iridium center and ground electrodes, this spark plug provides excellent ignitability, longevity, and fuel economy. Its resistor feature helps reduce electromagnetic interference, ensuring smoother engine operation. The gasket seat design ensures a secure seal within the combustion chamber, preventing leaks and maintaining consistent spark performance. Suitable for a wide range of vehicles, this spark plug is an essential replacement part to maintain engine efficiency and reliability. Easy to install, it is compatible with stock number 3981 specifications, making it a trusted choice for both professional mechanics and DIY enthusiasts.

Features:

• Iridium center and ground electrodes for durability and efficient ignition

• 14 mm thread size with 0.749-inch reach for broad vehicle compatibility

• Gasket seat design for a secure, leak-proof seal

• Resistor feature to reduce electromagnetic interference

• Compatible with a variety of vehicles, stock number 3981