The OS Engine Glowplug No.8 (Medium) is probably the most well-known glow plug in the model aircraft world. Renowned for its reliability and consistent performance, this medium-heat glow plug is ideal for almost all 2-stroke engines, making it a go-to choice for sport, training, and competition pilots alike.

Designed and manufactured by OS Engines, the No.8 glow plug delivers smooth engine runs, dependable starting, and excellent throttle response across a wide range of operating conditions.

Key Features

• Medium heat range – extremely versatile

• Ideal for most 2-stroke glow engines

• Excellent ignition reliability

• Smooth idle and consistent running

• Long service life with OS quality engineering

Perfect For

• 2-stroke glow engines

• Sport and aerobatic model aircraft

• Trainers and everyday flying

• Pilots wanting a reliable “fit-and-forget” glow plug

Product Summary

The OS Engine Glowplug No.8 is the industry standard medium-heat glow plug. Trusted worldwide, it offers outstanding all-round performance and reliability, making it one of the most popular glow plugs ever produced.

Specifications

• Brand: OS Engines

• Model: No.8

• Heat Range: Medium

• Engine Type: Glow (2-Stroke)

• Thread: Standard glow plug thread

Why Buy from Probuild Aircraft

• ✅ Official UK OS Engines stockist

• ✅ 100% genuine products

• ✅ Trusted by top international pilots

• ✅ Fast UK shipping

• ✅ Supplying pilots since 1993