Spark Plug - NGK Standard - 14 mm Thread - 0.708 in Reach - Tapered Seat - Stock Number 1085 - Non-Resistor - Each

Spark Plug - NGK Iridium IX - 14 mm Thread - 0.985 in Reach - Tapered Seat - Stock Number 2315 - Resistor - Each

Spark Plug - NGK Iridium IX - 14 mm Thread - 0.708 in Reach - Tapered Seat - Stock Number 3689 - Resistor - Each

Spark Plug - NGK Racing - 14 mm Thread - 0.749 in Reach - Gasket Seat - Stock Number 4017 - Resistor - Each

Upgrade your engine's performance with the NGK Spark Plug Stock # 4374. Designed for peak efficiency and reliability, this spark plug is a game-changer for your vehicle. Trust NGK for quality ignition solutions that make a difference on the road...

Spark Plug - NGK Iridium IX - 14 mm Thread - 0.985 in Reach - Tapered Seat - Stock Number 5107 - Resistor - Each