Hobbypark 6pcs Glow Plug #4 N4 Medium Hot for RC Nitro Engines – 4C, 5–40% Nitro

Overview

Meet the Hobbypark 70117 glow plug set, designed for 4C glow plug engines and nitro powered RC cars, trucks, and buggies. Each plug combines a platinum/iridium super duty tip with a longer lasting element, built to endure repeated starts and throttle transitions. The No. 4 medium hot heat range is tuned to support idle stability and smooth transitions across a range of nitro fuels from 5% to 40%.

Key benefits at a glance

• Medium hot No. 4 glow plugs engineered for reliable idle and throttle response
• Platinum/Iridium tip delivers durability for longer service life
• Longer lasting element reduces replacement frequency during endurance runs
• Compatibility with a wide range of 4C engines and popular RC brands
• Includes a washer with each plug and an 8 mm hex size for straightforward installation

Real-world use cases

Ideal for RC cars, trucks, and buggies that run on nitro fuel within the 5% to 40% range. In practice, these plugs can help your engine reach idle more quickly after start-up and maintain steadier transitions when you crack the throttle, especially in cooler conditions or after a cold start.

How to get the most from this set

• Verify compatibility with your engine’s manual before installation
• Install with the included washer to ensure proper seating and sealing
• Match nitro fuel percentage to the recommended 5%–40% range for balanced performance
• Follow your manufacturer’s torque and timing guidelines to maintain efficiency

Note: The item color may vary slightly due to photography and screen differences. If you are not completely satisfied, our customer support team can assist with refunds or exchanges under our Satisfaction Guarantee.