NGK Spark Plug Stock # 4948 Spark Plug - NGK Laser Iridium - 10 mm Thread - 0.749 in Reach - Gasket Seat - Stock Number 4948 - Resistor - Each

NGK Spark Plug Stock # 6502 Spark Plug - NGK Laser Iridium - 14 mm Thread - 0.749 in Reach - Gasket Seat - Stock Number 6502 - 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 # 7696 Spark Plug - NGK Laser Platinum - 14 mm Thread - 0.749 in Reach - Gasket Seat - Stock Number 7696 - Resistor - Each

NGK Spark Plug Stock # 7348 Spark Plug - NGK Iridium IX - 14 mm Thread - 0.460 in Reach - Tapered Seat - Stock Number 7384 - Resistor - Each