The O.S. #8 glow plug is the most widely used O.S. glow plug for O.S. engines. Recommended for most current O.S. (and other brands of) 2-stroke R/C engines. Note that O.S. engine plugs are SHORTbody plugs and should only be used in engines that require a short body plug. O.S. plugs should not be used in Novarossi, RB Concept and most other motors manufactured in Europe.
Features:
- Medium heat range plug for most model engine applications.
- Plug is medium length, without idle bar.
- For all 2 stroke engines.
See the O.S. glow plug chart below to compare the different short body standard glow plugs available for O.S. engines:
| Model | Heat Range | Description |
| No.6 | Hot | Formerly known as the OS A3 plug. This hot plug will provide a more stable idle and crisp acceleration when compared to a cold plug. This plug is recommended for low nitro content fuels and .12 class engines. |
| No.7 | Medium Hot | Slightly “hotter” than the #8 and ideal for the constant “on/off” throttle action in 1/10 and 1/8 scale racing. |
| No.8 | Medium | A medium heat range plug for 1/8 scale racing and most .12-21 car, boat and truck engines. |
| No.10 | Cold | Formerly known as the OS A5 plug. This is now rated as a cold plug and is recommended for high nitro content fuel. This cold plug will produce the most power, but will provide a less stable idle and a narrow tuning window |
This product was added to our catalog on April 13, 2006
- O.S. Engines 91 SZ-H Ringed
- O.S. Engines 91HZ-R 3D Speed
Jaden Lobbia Verified Owner Thursday, Apr 22 2021 (about 4 years ago) O.S. No.8 Short Body Standard Glow Plug “Medium” These are the best plugs I use in my nitro engines (short plug). I have tuned hundreds of cars, helis, and planes, and this by far is the longest lasting, best performing plug I have ever come across. At the moment all the cars in my collection with short plug engines run the OS 8. The ones with a standard plug engines run OS LC3s. Buy with confidence. 2 customers found this review helpful. Jesse Bodine Verified Owner Friday, Jul 5 2019 (about 6 years ago) O.S. No.8 Short Body Standard Glow Plug “Medium” I’ve never met an engine that wouldn’t run with one of these. Cox 0.049? Throw an adapter on it, screw in an OS 8, and ittl run. Car engines? If they accept standard plugs, the OS 8 will work well. Plane engines? My 46AX runs an OS 8, OS 8s have run engines up to 30CC. They’d probably work in a four stroke but I don’t have one to test!
If you still run glow and are pondering glow plugs, get an OS 8. Your engine WILL run on this plug. If it doesn’t, the problem isn’t with the glow plug. 1 customer found this review helpful. Michael Gonzales Verified Owner Wednesday, Jan 25 2023 (about 2 years ago) O.S. No.8 Short Body Standard Glow Plug “Medium” Exactly as described and fast shipping as always!Great product!O.S is where it’s at! Andrew Pope Verified Owner Tuesday, Jul 26 2022 (about 3 years ago) O.S. No.8 Short Body Standard Glow Plug “Medium” perfect fit for my kyosho fw06 long run times and long lasting Joseph Blas Monday, Jan 24 2011 (about 14 years ago) O.S. No.8 Short Body Standard Glow Plug “Medium” When I got back into flying, this was the plug recommended for most of my OS aircraft engines. S I M P L YA W E S O M E ! ! ! ! ! ! ! Anonymous Sunday, May 11 2008 (about 17 years ago) O.S. No.8 Short Body Standard Glow Plug “Medium” Use this plug for two years and I don’t have any problems. Andries Buskens Verified Owner Wednesday, Jun 7 2023 (about 2 years ago) O.S. No.8 Short Body Standard Glow Plug “Medium” Best glow plugs ever built ever in the history of ever. Any questions? 0 of 1 customers found this review helpful. Darin Beebe Verified Owner Friday, May 8 2020 (about 5 years ago) O.S. No.8 Short Body Standard Glow Plug “Medium” have not tried these in my ys96sr yet but heard they work well 0 of 1 customers found this review helpful. Hayyan AL-Raisi Friday, May 2 2008 (about 17 years ago) O.S. No.8 Short Body Standard Glow Plug “Medium” if you want to spend your money buy this glow plug , DON’T BUY. 1 of 9 customers found this review helpful. View all reviews
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