• Surpass Hobby BAT S4214 brushless FPV motor with long wire lead and mounting screws set
  • Angled side view of BAT S4214 660KV brushless motor for multirotor drones, red base mount
  • Top view showing star-shaped rotor cap and M6 threaded shaft on Surpass Hobby BAT S4214 motor
  • Bottom view of red motor base and central bearing, copper windings visible around the stator
  • Front view of Surpass Hobby BAT series motor with tall threaded shaft and black can housing
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Surpass Hobby BAT S4214 400KV/660KV Brushless FPV Motor for Multirotor Drones, M6 Shaft, 12N14P

Surpass Hobby BAT S4214 400KV/660KV Brushless FPV Motor for Multirotor Drones, M6 Shaft, 12N14P

Surpass Hobby

$59.00 USD
$59.00 USD
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Overview

Surpass Hobby BAT S4214 is a brushless FPV motor for multirotor/FPV aircraft builds. It is available in 400KV and 660KV versions and uses an M6 threaded shaft for prop installation.

Key Features

  • M6 shaft fits most propellers; custom nuts help protect steel shaft threads
  • Detachable design for easier cleaning; front cover airflow structure helps improve heat dissipation
  • 48SH rotor with NdFeB magnet tiles
  • Lightweight, high-strength hole-core steel shaft
  • NMB bearings (Japan), smooth and wear-resistant
  • 220C high-temperature resistant multi-strand copper wire
  • 0.2 mm silicon steel sheet (Japan) for low heat generation and high efficiency

Specifications

Model S4214
KV options 400KV / 660KV
Slot/Poles 12N14P
Motor size Dia 50.4 x 60.5 mm
Stator size Dia 42 x 14 mm
Shaft Dia 6 mm, M6 (CW)
Mounting 4 x M4, Dia 30 mm bolt circle
Wire 14#; 670 mm

Electrical (by KV)

Parameter 400KV 660KV
Max watts 2393.3 W 2138.8 W
Max current 57.16 A 86.07 A
No-load current 0.7 A 1.5 A
Resistance 60.2 m 30.9 m
Weight (including wire) 255.8 g 257.0 g

Thrust Test Data (GF1270-3 Prop)

Parameter (100% throttle) S4214 400KV S4214 660KV
RPM 12470 11727
Volts 41.87 V 24.85 V
Amps 57.16 A 86.07 A
Watts 2393.3 W 2138.8 W
Torque 1.387 N.m 1.230 N.m
Thrust 7011 g 6219 g
Efficiency 3.9 g/W 4.1 g/W
Motor efficiency 75.7% 70.6%
Operating temperature 35.3C 34.6C

Options

  • KV: 400KV or 660KV
  • Quantity: 1PCS or 4PCS

For help choosing the right KV option for a specific prop and power setup, contact [email protected] or visit https://rcdrone.top/.

Details

Surpass Hobby BAT S4214 brushless FPV motor for multirotor drones, 400KV/660KV, 12N14P, M6 shaft

High-efficiency BAT S4214 motor for multirotor and FPV builds, offered in 400KV or 660KV.

Close-up of BAT S4214 motor top with M6 threaded shaft and lock nut for propeller mounting

The M6 threaded shaft fits common propellers, while the custom nut helps protect the steel threads during installs.

BAT S4214 rotor assembly showing 48SH rotor magnet tiles and lightweight hole-core steel shaft

A 48SH rotor with NdFeB magnet tiles pairs with a lightweight, high-strength hole-core steel shaft for dependable output.

Stator windings and bearing detail for BAT S4214 motor, showing copper coils and central bearing

Quality internals—including NMB bearings, high-temperature copper winding, and silicon steel—support smooth running and efficiency.

Exploded view of Surpass Hobby BAT S4214 motor showing detachable parts and airflow structure for heat dissipation

The detachable design makes cleaning easier, and the front-cover airflow structure helps move heat away during long flights.

BAT S4214 motor specifications sheet with 400KV/660KV thrust test tables and dimension drawings

Full size, mounting, and thrust-test reference for planning prop, battery, and frame compatibility.

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