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Power HD

Power HD Brass WT120 Standard 50kg 8.4V Brushless Steel Geared Servo

  • Brushless

Part no. WT120

Sold out5.0
1 review
1 / 4
1 / 4

$174.99

or 4 fortnightly payments of $43.75 with afterpay

Power HD WT120: High Torque 50kg Brushless Servo with Steel Gears and Brass Casing

  • High torque of 50.0 kg-cm (694.4 oz/in) at 8.4 V
  • Powerful Brushless Motor for Superior Performance
  • Constructed with Durable Steel Gears
  • Hefty Brass Casing

Overview

Please Note

Servos are powered by the ESC's output to the receiver. If you're using a higher-strength servo than the ESC can support (usually greater than 20kg), you may experience 'brown-outs' where the radio signal can be interrupted and cause erratic driving. This can be helped by plugging a Glitch Buster into the receiver smoothing the current delivery. However, in some cases, you may need to install an external BEC.

Deliver immense power and precision to your high-demand RC vehicle with the Power HD WT120 standard brushless servo. This heavy-duty unit is engineered for extreme applications, featuring a potent brushless motor that operates on high voltage up to 8.4V. At this power level, it produces a staggering 50.0 kg-cm (694.4 oz/in) of torque with a rapid transit speed of just 0.08 seconds, providing both brute strength and incredible responsiveness.

The WT120 is built for durability and efficient heat management. Its standout feature is the full brass case, which provides exceptional rigidity and acts as a massive heat sink to keep the motor cool under heavy loads. Inside, a robust steel geartrain supported by dual ball bearings ensures a long and reliable service life.

Weighing 120 g (4.23 oz) and fitting a standard servo footprint, this servo provides the strength and resilience needed for large-scale crawlers, monster trucks, and other demanding applications. It is also compatible with programming boxes for further customisation.

Features

  • High torque: 50.0 kg-cm (694.4 oz-in) at 8.4V
  • Fast speed: 0.08 sec at 8.4 V
  • Powerful brushless motor for smooth and efficient operation
  • Extremely durable steel gears
  • Solid brass casing for strength, weight and heat dissipation
  • Dual ball bearings for precise movement
  • Compatible with iBUS2 and programme box for custom settings
  • Genuine Power HD Product

In the box

  • 1x Power HD Brass WT120 Standard 50kg 8.4V Brushless Steel Geared Servo

Specifications

Torque (6.0 V)36.0 kg-cm (499.9 oz-in)
Torque (7.4 V)42.0 kg-cm (583.3 oz-in)
Torque (8.4 V)50.0 kg-cm (694.4 oz-in)
Speed0.11 sec (6.0V)
Speed0.09 sec (7.4V)
Speed0.08 sec (8.4V)
Operating Voltage6.0V - 8.4V
Weight120 g (4.23 oz)
Bearing TypeBall Bearing x 2
Motor TypeBrushless Motor
Gear TypeSteel
Operating Temperature-10℃~60℃
Refresh Rate1500 Hz

Servo

Servo
SizeConventionally sized servo namesStandard
Gear MaterialSteel
Servo Spline Count25Tooth
Waterproof CasingYes
Input Voltage Range7.4V, 8.4V, 6V
Case MaterialBrass
Height (A)34mm
Body Length (B)41mm
Bottom to Under Mount (C)19.7mm
Top to Under Mount (D)9.3mm
Length (E)54.4mm
Width (F)20mm
Drive Motor TypeBrushless
Rotational Degrees120° (Normal)
6V Torque kg/cmKilograms of torque at 25mm away from the center of the spline36
6V Sec/60 DegreesSeconds per 60 degrees of rotation0.11
7.4V Torque kg/cm42
7.4V Sec/60 Degrees0.09
8.4V Torque kg/cm50
8.4V Sec/60 Degrees0.08
Signal TypeDigital

Reviews (1)

5.0

Based on 1 review

  • 5 stars1
  • 4 stars0
  • 3 stars0
  • 2 stars0
  • 1 star0
  • Jason L

    Verified buyer

    10 Aug 2026

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