The platinum-alloy coil holds heat without idle bar and reduces heat-related failures
Recommended for most current O.S. (and other brands of) 2-stroke R/C engines
Medium heat range plug for most model engine applications
Includes one glow plug and one brass washer
Choose the #8 plug for top performance in virtually any application. The platinum-alloy coils in O.S. plugs hold heat without idle bars and reduce heat-related failures. Threads on the plug are 1/4-32.