O.S. Engine P4 Turbo Glow Plug - Off-Road Favourite  [OSMG2697]

O.S. Engine - Glow Plug #P4 (Turbo) Super Hot
Price:
AUD$22.97
Brand:
O.S. Engine
Model:
OSMG2697
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Reliable Ignition with the O.S. Engine P4 Turbo Glow Plug

The O.S. Engine P4 Turbo Glow Plug is aimed at hobbyists who run high-performance setups and need consistent ignition. It fits the OS Max .21VZ-B VSPEC and .21VZ-B Speed Tuned Engines and is recommended for fuels containing 25% nitromethane or more.

Construction and Fit of the O.S. Engine P4 Turbo

Made from durable metal, the P4 Turbo has a tapered lower section to ensure a tight, flush fit to the combustion chamber, helping to stabilise combustion. The plug's medium heat value makes it suitable for off-road and high-demand operating conditions.

Specifications

  • Overall Length: 17mm (.67")
  • Thread Size: M8x.75mm

Tips for Choosing a Glow Plug

Correct plug selection affects throttle response and idle quality. The O.S. Engine P4 Turbo is tailored for advanced users running higher nitro blends; refer to tuning guides or the engine manual when selecting heat ranges.

Is thread size the only fitment concern?

Thread size is critical, but also confirm seat taper and reach to avoid piston contact or poor sealing in your head.

Will this plug improve peak power?

A properly matched glow plug can improve combustion efficiency and throttle response when paired with correct fuel and tuning, but it is one part of the overall setup.

How often should I replace the plug?

Replace the plug if you notice inconsistent starts, excessive carbon on the electrode, or after heavy use; lifecycle depends on fuel and running conditions.

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