Elevate your RC experience with these premium O.S. #8 glow plugs, a staple for nitro fuel engine enthusiasts. This pack of 6 medium-heat range plugs is designed for optimal performance across various RC applications. Each plug features medium length construction without an idle bar, making them perfect for 2-stroke engines. They're particularly suited for O.S. engines in RC fixed-wing aircraft, helicopters, and specific 1/8 scale car models including 12/15CV, 15LD, 21RG, and 21RZ-V 01b. These plugs come factory-sealed in original retail packaging, ensuring pristine condition upon arrival. As the most widely used O.S. glow plug variant, the #8 has earned its reputation through consistent performance and reliability. Whether you're maintaining your current setup or stocking up for future builds, these plugs deliver the ignition performance needed for your nitro-powered RC vehicles.