RC ERA C138 Pro — Main Gear & Pinion Set (Replacement)

Restore Smooth Power Transmission

Genuine RC ERA C138 Pro main gear set for precise mesh, quiet running, and reliable torque transfer. Ideal after hard landings or stripped teeth. Ships worldwide.

• Factory-spec main gear & pinion for perfect fit on C138 Pro
• Accurate tooth profile reduces vibration and gear noise
• Durable material for everyday flying and training
• Ready to install with standard tools

When to Replace

• Visible chipped or rounded teeth after a crash
• Grinding sound, slipping under load, or inconsistent head speed
• Preventive maintenance after repeated tail or blade strikes

Compatibility

Designed for the RC ERA C138 Pro 6CH Brushless Police RC Helicopter only.
Full model page (specs & photos):
https://kadstoylover.com/products/rc-era-c138-pro-6ch-brushless-police-rc-helicopter-with-optical-flow-led-lights

What’s in the Box

• Main gear (1)
• Pinion gear (1)
• Hardware as shown (washers/setscrews if applicable)

Install Tips

• Ensure correct gear mesh: minimal backlash without binding
• Add a tiny drop of thread locker to the pinion set screw
• After install, spin by hand to check for high spots before power-up

Support & Warranty

• Expert help to match the right C138 Pro spare parts
• 3-month warranty on manufacturing defects
• Ships worldwide

Other Related Parts

Need shafts, blades, servos, LEDs, batteries and more? Browse the full C138 Pro spare parts collection:
https://kadstoylover.com/collections/rc-era-c138-pro-spare-parts-accessories