Brushless Main Motor with Pinion Gear Set for RC ERA C170 Apache Helicopter

Fix Critical Power Fading, Stop Mid-Air Thermal Cutoffs, and Restore Aggressive 3D Stunt Flight Acceleration

The brushless main motor is the core power plant of your helicopter, responsible for generating the massive torque required to spin the 4-blade rotor head at high RPMs. Under heavy loads, such as continuous inverted flying, high-speed banking, or rapid pitch pumps in 3D stunt mode, the motor generates significant heat. Over time, or following a severe rotor strike crash that jams the drivetrain, the internal copper coils can overheat, leading to demagnetization, a sudden drop in lifting power, severe thermal tail-drifting, or complete motor lockups. This factory-original RC ERA C170 main motor kit replaces your burnt or degraded engine instantly, delivering continuous linear throttle output, stable head speed, and raw brushless performance.  Ships worldwide.

Product Highlights

• High-Torque External Rotor Brushless Architecture: Engineered with high-grade copper windings and premium magnets to ensure optimal power-to-weight delivery and crisp response.

• Factory Pre-Installed Metal Pinion Gear: Comes with a rugged, wear-resistant silver steel pinion gear factory-pressed onto the motor shaft for precise alignment and no slipping.

• Flexible High-Temp Silicone Lead Wires: Pre-soldered with color-coded, flexible connection wires that safely handle high current draws without melting or stiffening.

• All-In-One Dedicated Engine Mount Hardware: Packaged complete with two precision-matched mounting screws to ensure secure, wobble-free seating inside the inner chassis frame.

Compatibility

For the RC ERA C170 1:48 Scale Longbow Apache RC Helicopter only.
Full model page (specs & photos):

https://kadstoylover.com/products/rc-era-c170-1-48-scale-longbow-apache-rc-helicopter

What’s in the Box

• 1 x RC ERA C170 Main Motor

Install Tips

• Removing the Degraded Main Motor: Disconnect the motor lead wires from the main control board receiver sockets; unfasten the bottom mounting screws from underneath the chassis engine bay and carefully slide the old motor out.

• Aligning the Motor Faceplate and Screws: Slide the new black brushless motor into the circular mounting seat of the lower frame; align the threaded holes on the motor flange with the chassis slots, insert the two included screws, and tighten them until snug.

• Setting the Pinion-to-Main Gear Backlash: Adjust the motor's position slightly so the silver metal pinion meshes smoothly with the main gear; ensure a microscopic gap (about the thickness of a single sheet of paper) remains between the teeth to prevent friction binding before finalizing the torque on the screws.

• Routing Output Wires and Rotation Verification: Guide the silicone power wires through the frame channels, keeping them secured safely away from the spinning main shaft or servo linkages; plug the connectors into the main ESC board and perform a low-throttle bench test to verify smooth, quiet rotation before locking the scale green Apache fuselage shell back into place.

Spare Parts & Accessories

Find remote control，battery，USB，carcase clips，screwdriversand more in the dedicated parts collection

https://kadstoylover.com/collections/rc-era-c170-rc-helicopter-spare-parts-accessories

Support & Warranty

• 3-month warranty on manufacturing defects
• Ships worldwide