Brushless Conversion Kit for MN78, MN82, MN99S, MN168 & WPL Crawlers

Upgrade your RC crawler with this powerful brushless conversion kit, designed to provide stronger performance, smoother throttle control and improved climbing capability.

Featuring a 2322 2600KV brushless motor, full metal gearbox, 45A AM32 ESC and 21g metal-gear steering servo, this kit provides the essential components required to convert compatible MN and WPL crawlers from a brushed power system to brushless.

Please note: A transmitter and receiver are not included. A compatible radio system is required to operate this conversion kit.

Compatible transmitter and receiver

For a suitable radio system, please see our:

7CH Transmitter and Receiver Combo – Shop Here

The original MN electronics commonly combine the ESC and receiver in one unit. When installing this brushless ESC, a separate compatible transmitter and receiver system will normally be required.

Key Features

Powerful 2600KV Brushless Motor

The compact 2322 external-rotor motor delivers increased efficiency, speed and torque compared with standard brushed power systems.

Improved Low-Speed Control

The AM32 ESC includes low-speed torque compensation to provide smoother throttle response, improved linearity and better control when navigating technical terrain.

Full Metal Gearbox

The durable metal gearbox is designed to handle the increased power produced by the brushless motor.

Compact Mounting Design

Designed around a 14 × 14mm gearbox mounting aperture, allowing installation in compatible original and metal gearbox locations without enlarging the opening.

45A AM32 Brushless ESC

Supports 2S–3S LiPo batteries and features sine-wave startup for smooth, stable power delivery.

High-Torque Metal-Gear Servo

The included NEEBRC digital servo provides up to 9kgf·cm of steering torque with durable metal gears.

Compatibility

Compatible with selected versions of:

• MN78
• MN82
• MN82 Pro
• MN82S
• MN82T
• MN99S
• MN168
• MN98
• MN111
• MN86
• MN128
• WPL C14
• WPL C24
• WPL C54

Compatibility can vary between vehicle versions. Please check the available mounting space, gearbox dimensions, battery voltage and connector types before ordering.

Important ESC Startup Information

When the ESC is switched on, you may hear two short tones without the final long confirmation tone. This does not normally mean that the motor or ESC is faulty. It indicates that the ESC has not recognised the transmitter’s neutral throttle position.

To correct this:

1. Switch on the transmitter and centre the throttle trigger.
2. Switch on the ESC.
3. Slowly adjust the transmitter’s TH/TRIM control around the centre position.
4. Continue fine-tuning until the ESC produces the long confirmation tone.

The motor should operate once the neutral throttle position has been recognised. Keep the vehicle’s wheels raised off the ground during initial setup.

Brushless Motor Specifications

• Motor type: 2322 external-rotor brushless motor
• KV rating: 2600KV
• Operating voltage: 5.5–9V
• Rated voltage: 7.2V DC
• No-load speed: 19,000rpm ±10%
• Loaded speed: Approximately 17,000rpm
• Maximum no-load current: 1,200mA
• Load torque: 100gf·cm
• Motor gear: 10T
• Rotation: Clockwise or counter-clockwise

AM32 45A ESC Specifications

• Operating voltage: 7.4–11.1V
• Battery compatibility: 2S–3S LiPo
• Continuous current: 45A
• Startup mode: Sine-wave startup
• Low-speed torque compensation: Yes
• Dimensions: 38.5 × 28 × 18.5mm
• Battery connector: Check the selected product option

NEEBRC 21g Servo Specifications

• Servo type: Digital
• Operating voltage: 4.8–6.0V
• Maximum torque: 9kgf·cm
• No-load speed: Approximately 0.10–0.12 seconds per 60°
• Gear material: Metal
• Control interface: PWM
• Output spline: 25T
• Weight: Approximately 20.7g
• Dimensions: 29.6 × 13.2 × 40mm

Package Includes:

• 1 × Full metal gearbox with 2322 2600KV brushless motor
• 1 × AM32 45A brushless ESC
• 1 × NEEBRC 21g metal-gear servo

Transmitter, receiver, battery and other vehicle components are not included.

Why Upgrade to Brushless?

A brushless conversion can provide:

• Higher efficiency and potentially longer runtime
• Stronger and more consistent power delivery
• Smoother low-speed crawling control
• Improved throttle response
• Reduced motor maintenance
• Better performance on demanding terrain

Installation Notes

• A separate compatible transmitter and receiver are required.
• Installation requires mechanical fitting, wiring, radio setup and throttle-neutral adjustment.
• Minor modifications may be required depending on the vehicle model and existing components.
• Metal drivetrain components are recommended due to the increased power output.
• Confirm battery voltage, connector type and polarity before connecting power.
• Disconnect the battery before installing or changing any electrical connections.
• Installation by someone with suitable RC upgrade experience is recommended.