NGK Racing Spark Plug - R0045Q-10 / R0045Q10 (4216) Features: Designed for high-performance racing applications. Surface gap tip configuration for extreme durability and precision. Handcrafted in Japan to withstand the most demanding racing environments. Surface discharge plugs are ideal for high-compression engines or situations with limited valve/piston clearance. Nearly immune to preignition, making them suitable for extreme applications. Note: May be susceptible to fouling in colder conditions. Specifications: Part Number: 37-R0045Q-10 NGK Reference Number: 4216 Thread Size: 10 mm Reach: 19 mm (3/4") Hex Spanner Size: 16 mm (5/8") Terminal Type: M4 Thread Seal Type: Gasket Seat Electrode Material: Standard Nickel Projection Type: Non-Projected Tip Configuration: Surface Gap Pack Size: 1 Single Unit Resistor: Yes Gap: 0.043" (1.1 mm) Heat Range: 10 Cross Reference Numbers: OLD R0045J-10 37-R0045J-10 Additional Notes: NGK surface gap plugs are specialized for racing environments where conventional ground strap plugs are unsuitable. They deliver reliable ignition even under extreme compression and temperature conditions, ensuring maximum performance for racing engines. These plugs are engineered for precision and durability, meeting the needs of the most demanding applications. S/SEED FROM 37-R0045J-10 TO 37-R0045Q-10
