| SURFACE |
| Type | Stock No | Description |
| P8 | OSMG2698 | Cold enough to outlast the hottest "heats". For Turbo head engines. |
| R5 | OSMG2694 | A racing plug so durable it can survive leaner needle settings and high-nitro/high-rpm 1/8 scale racing. |
| A5 | OSMG2693 | Slightly "cooler" than the #8 and ideal for the constant "on/off" throttle action in 1/10 and 1/8 scale racing. |
| P-7 | OSMG2695 | An all-season, medium-heat plug for Turbo head engines. |
| LC4 |
OSMG2708 |
Designed to boost performance in 1/10 scale off-road vehicles such as the Traxxas® T-Maxx™ and Revo® |
| #8 | OSMG2691 | A medium-hot plug for 1/8 scale racing and most .12-21 car, boat and truck engines. |
| P-6 | OSMG2696 | A hot choice for all .12-.21 Turbo head engines. |
| LC3 | OSMG2700 | A long-reach hot plug created for the Traxxas TRX 2.5 (.15) Racing Engine and other 1/10 scale off-road engines. |
| A3 | OSMG2690 | A hot plug with the longest life and lowest cost of any O.S. sport plug. Great for beginners and .12-.15 engine break-in. |
| P3 | OSMG2699 | An ultra-hot plug for the 18TZ and other Turbo head engines. |