OVERVIEW The NGK TR6 Resistor V-Groove Spark Plug is designed for reliable ignition and optimal engine performance. Its premium design and construction enhances spark efficiency, delivering smoother starts, better fuel combustion, and consistent power across all driving conditions. Renowned for advanced engineering, NGK spark plugs offer a variety of heat ratings to suit different engine setups and operating conditions. The TR6 NGK spark plug is engineered to maximise combustion efficiency and maintain your engine’s smooth, responsive operation. TECH SPECS NGK Spark Plug - TR6 Thread Size: 14mm Reach: 17.5mm Hex Size: 16mm Seat Type: Taper-Sheet Resistor: Resistor Gap: 1mm Heat Range Chart Row: 6 Metal Type: Nickel Terminal Type: Solid Post Package Quantity: 1