800KV Brushless RC Boat Motor

5 out of 5 based on 1 reviews | Write a review

$285.58

Factory price 800KV brushless RC boat motor for sale. Powerful brushless motor for RC boat comes with Max. current 78A, 4200W Max. power, motor size Φ40*92 mm. Small brushless motor has highly balanced rotor, high smoothness, accuracy and high speed advantages.

SKU: ATO-RB-800

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Delivery date: 6-12 days

Overview
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800KV brushless motor online which is designed for RC boats. A waterproof brushless motor has a maximum voltage of 54V, a 4-stage 12-slot high-torque motor design.

Specification

Model: ATO-RB-4092
Rotation Speed: 800KV
Max. Current: 78A
Max. Voltage: 54V
Max. Power: 4200W
Motor Size: Φ40*92 mm
Winding Type: WYE
Number of Poles: 4Y
No-load Current: 1.1A
Max. Speed: 50000KV
Shaft: Φ5 mm
Number of Rotor Poles: 4
Weight: 455g

Features

800KV brushless motor has a 4-stage 12-slot high-torque motor design.
CNC machined billet, 6061-T6 aluminum heat sink.
High-purity copper coil for maximum performance.
High-speed ABEC5 oversized bearings.
Highly balanced rotor, high smoothness, accuracy and high speed.
Ultra-thin (0.2mm) stator blades.
Removable/replaceable rotor.
Precision design for maximum energy conversion.

Dimension (Unit: mm)

800KV brushless rc boat motor dimension

Detail

800KV brushless rc boat motor detail

Tips: How to choose the right diameter of brushless RC boat motor?

You want to start with the correct can size (motor diameter) to suit the size and weight of the hull you intend to run.

Here are some basic starting point suggestions for a single motor hull.

28-29mm can size- will power most hulls up to 600mm.
36mm can size- up to around 800mm.
40mm can size- up to 1200mm as long as it’s a light brushless dedicated or abs hull.
Anything over that will require 56– 58mm motor.

VFD Two-Wire Control Wiring with Push Button for Forward Motor

In this video we've guided you through how to do VFD control wiring with a self-lock push button switch to run the motor in forward direction. We've covered everything from wiring to programming and even a test run. So just watch it through and hope you'll find it informative and helpful.

Existing reviews of 800KV Brushless RC Boat Motor

Powerful and reliable motor

I installed this 800KV brushless motor in my RC boat, and it has been performing incredibly well. The power feels strong and responsive, and the motor runs smoothly even at high speeds thanks to the well-balanced rotor. Acceleration is quick, and the boat glides with impressive stability. The build quality also seems solid for the price, and it hasn’t shown any signs of overheating or vibration during long runs.

From: Noah | Date: 17/11/2025

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