OS Engines P3 Glow Plug – Ultra Hot

The OS Engines P3 Glow Plug is rated Ultra Hot, making it ideal for high-performance, turbo-head nitro engines. Its heat range delivers fast ignition, strong throttle response, and reliable combustion under demanding conditions such as racing or high nitro mixes. The OS P3 is commonly used in .15–.28 cu.in engines with turbo-heads and offers smoother idling, quicker acceleration, and easier tuning when more heat is required. It’s especially suited for cold weather or high RPM situations.