NGK Spark Plug Stock # 4311 Spark Plug - NGK Racing - 14 mm Thread - 0.847 in Reach - Gasket Seat - Stock Number 4311 - Resistor - Each

NGK Spark Plug Stock # 4435 Spark Plug - NGK V-Power - 14 mm Thread - 0.749 in Reach - Gasket Seat - Stock Number 4435 - Resistor - Each

NGK Spark Plug Stock 2314 Spark Plug - NGK Iridium IX - 14 mm Thread - 0.985 in Reach - Tapered Seat - Stock Number 2314 - Resistor - Each

NGK Spark Plug Stock # 2763 Spark Plug - NGK G-Power Platinum - 14 mm Thread - 0.749 in Reach - Gasket Seat - Stock Number 2763 - Resistor - Each

NGK Spark Plug Stock # 3686 Spark Plug - NGK V-Power - 14 mm Thread - 0.749 in Reach - Gasket Seat - Stock Number 3686 - Resistor - Each