The NGK BPR6ES-11 is a high-quality resistor spark plug designed for a wide range of gasoline engines, including those found in agricultural and industrial machinery. Featuring a standard copper core electrode, it provides dependable ignition and consistent performance. The resistor type helps to suppress electromagnetic interference (EMI) that can affect electronic systems. With a 14mm thread diameter, 19mm (3/4 inch) reach, and a 20.8mm (13/16 inch) hex size, this spark plug is engineered for durability and efficient combustion. The -11 suffix indicates a 1.1mm (0.044 inch) spark gap, optimized for specific engine requirements.