The O.S. #8 glow plug is the most widely used O.S. glow plug. Recommended for most current O.S. (and other brands of) 2-stroke R/C engines. FEATURES: Medium heat range plug for most model engine applications. Plug is medium length, without idle bar. For all 2 stroke engines. YOU WILL RECEIVE: One glow plug and one brass washer SPECIFICATIONS: Threads on the plug are 1/4-32. COMMENTS: Other OS Glow Plugs include: R5 OSMG2694 Coolest A5 OSMG2693 Med Cool #8 OSMG2691 Med Hot A3 OSMG2690 Hottest JLP 87/94 ir/jl other plug info updated tjt 032105 &