Equivalent NGK D8EA
Center Electrode Core Material - Copper, Center Electrode Tip Material - Ni, Electrode Gap (0.7mm), Ground Electrode Material - Ni, Hex Size (18mm), Thread Diameter (12mm), Thread Length (19mm), Thread Pitch (1.25mm), Tightening Angle 2/3 turn, Tightening Torque (Nm) 15-20