OFNA glow plugs will be the standard for performance and value for your nitro engine. Great for quick engine starting and consistent engine tuning. Our glow plugs are strong and durable and can take the heat and long run times over and over again. No matter what your condition or application, on-road or off-road, airplanes or helicopters and even nitro boats, our plugs have you covered. Our plugs come in three heat ranges in both turbo and standard, each offering high quality platinum elements that provide a more powerful burn cycle. The plug which has an easy identifying number for the heat range also has an anti-corrosion body for when you need to change out plugs and store for later use. Our turbo plug conical seating will fit on multiple engines while our standard plug comes with copper gasket for tight fit so there is no fuel bleeding through the head button. With pricing that can’t be beat you'll have a hard time going back to plugs with a higher price tag with the same or lesser amount of performance.