O.S. Engines P7 Turbo Glow Plug "Medium"
"Medium" Off-Road Plug
$20.95 Inc Tax
This is a P7 "Medium" Turbo Glow Plug from OS Engines.
| Model | Heat Range | Description |
| P7 | Medium | An all-season, medium-heat plug for Turbo head engines |
| P6 | Hot | A hot choice for all .12-.21 Turbo head engines |
| P5 | Very Hot | For most .18-.28 off-road racing Turbo head engines, especially when the temperature is high or for leaner needle settings and high-nitro/high-rpm running |
| P4 | Super Hot | For most .18-.28 off-road racing Turbo head engines |
| P3 | Ultra Hot | For most .18-.28 off-road racing Turbo head engines |