Specification: Hexagon size : 16mm Thread reach :12.7mm Thread size:10mm Calorific value : 5 Spark Plug Torch A5RTC Suitable for Honda Eu2000i Gx100 and 2000W 98056-55777 Predator for Champion Z9Y Brisk NAR17 Torch A5RTC replacement spark plugs: Champion Z9Y Brisk NAR17 Brisk NAR17C Denso 4006 Denso 5383 Denso IUF22 Denso U16-FSR-U Denso U16FSU Denso U17FU Denso U20FBU Denso U20FS-U Denso U20FSR-U Denso U20FSRU Denso U20FSU Denso U20FSZU Denso U20FU Denso U22FBU Denso U22FS-U Denso U22FS-ZU Denso U22FSR-U Denso U22FSRU Denso U22FSU Denso U22FSZU Denso U22FU Denso X24ESR-U NGK 2874 NGK 3228 NGK 4629 NGK 4695 NGK 6535 NGK 6821 NGK C6HA NGK C6HSA NGK C7HSA NGK C7HV NGK C8HA NGK C8HSA NGK CR4HSA NGK CR4HSB NGK CR5HS NGK CR5HSA NGK CR5HSB NGK CR6HS NGK CR6HSA NGK CR7HS NGK stk 2325 NGK stk 2983 NGK stk 3228 NGK stk 4629 NGK stk 4712 NGK stk 7023 NGK stk 7162 NGK stk 7223 NHSP A7T Please note: due to production series, the detailed colors may vary, but the performance is the same.