NGK Y1069J / 96421 Sheathed Diesel 11 V Metal Glow Plug Replaces R2AA-18-601

The NGK Y1069J / 96421 sheathed diesel glow plug delivers reliable ignition for diesel engines. Operating at 11 V, it features a robust metal heater element and a durable sheath designed to withstand high combustion temperatures. With an M10 thread and a length of 140 mm, it installs securely into compatible Mazda engines, replacing OE R2AA-18-601. The fitting depth of 30 mm ensures precise insertion, while the hex size of M12 allows confident tightening with standard tools. This glow plug promotes quicker starts, smoother idling, and improved cold-weather performance, reducing crank times and fuel waste. Built to meet strict NGK specifications, it’s a direct fit for vehicles originally equipped with the Mazda glow plug, offering long service life and consistent heat output.