The Rossi R3 Medium Glow Plug is a high-quality replacement designed for nitro engines in radio-controlled model cars. Thanks to its precise construction and platinum filament, it ensures efficient combustion, reliable starting, and a long life. The Medium rating makes this spark plug particularly suitable for standard operating conditions and medium-displacement engines. It is compatible with nitro engines from approximately 3.5 to 6 cc, which are very common in 1:10 and 1:8 scale RC model cars. Thanks to the Rossi brand's high-quality construction, highly regarded in the world of RC modeling, the R3 spark plug offers good idle stability, consistent ignition, and reliable performance even on high-performance engines. Main features Brand: Rossi Model: R3 Medium (code R10003) Type: Glow plug for nitro engines Rating: Medium Compatibility: 3.5 – 6 cc nitro engines Use: RC model cars with internal combustion engines The Rossi R3 Medium spark plug is therefore an ideal choice for modelers looking for reliability, good durability and consistent performance in the internal combustion engines of radio-controlled model cars.