HPI SD-25MGWP Servo - 22kg

Brand: HPI

Part No: HPI-160546

$47.96 ~~RRP $53.28~~

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The HPI SD-25MGWP Servo – 22kg (part HPI-160546) is a waterproof, metal-geared high-torque servo built for bashers and racers who need reliable performance in rain, snow and puddles. Running on 6.0–7.4V, it pairs swift transit speeds with robust torque in a compact 40×40×20mm main case and 25T spline.

Key Features

Water-proof metal gear servo
Operating voltage: 6.0–7.4V
6V: Speed: 0.13 sec/60°, Torque: 22kg-cm
7.4V: Speed: 0.11 sec/60°, Torque: 25kg-cm
Servo spline: 25T
Dimensions: Main case 40x40x20.0mm (excluding mounting tabs, servo spline, & cable outlet)
Mounting tab hole centres: 49x10mm
Weight: 74g (excluding servo horn)

Important Note For Wet Use

Ensure all electronics are water-resistant/waterproof or fully enclosed before running in wet conditions.
ESC cooling fans are not water-resistant; disconnect before wet use and allow to dry fully before reconnecting.
Lubricate exposed metal drivetrain parts (bearings, outdrives, diff shafts) before wet running.
Motors are not intended for submerged use and may be damaged if used under water.
After wet running, rinse with plain water and re-lubricate metal drivetrain parts; remove corrosive residues like saltwater.

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#160546 - HPI SD-25MGWP SERVO (WATER-PROOF/6.0V/22KG/METAL GEARED)

This water-proof metal gear servo is ideal for bashers and racers looking for a tough and durable servo that can be used in wet conditions (e.g. rain, snow, puddles).

Features:
Operating Voltage: 6.0-7.4V
6V: Speed: 0.13 sec/60 degrees, Torque: 22kg-cm
7.4V: Speed: 0.11 sec/60 degrees, Torque: 25kg-cm
Servo Spline: 25T

Dimensions:
Main case: 40x40x20.0mm (excluding mounting tabs, servo spline, & cable outlet)
Mounting tab hole centres: 49x10mm

Weight: 74g (excluding servo horn)

NOTE: Before driving in wet conditions, make sure that all electronics fitted to the vehicle are safe to use (marked as water-resistant or waterproof), or that they are fully enclosed and protected from water and moisture (such as in a sealed receiver/battery case). Fans mounted on speed controllers are not water resistant - we recommend to disconnect the fan from the ESC before driving in wet conditions and allow it to dry fully before reconnecting the fan power. Lubricate exposed metal drivetrain parts such as bearings, outdrives and diff shafts before driving in wet conditions. Motors are not intended for submerged use and may be damaged if used when under water. After driving in wet conditions, make sure to rinse off dirt and any corrosive liquids like saltwater with plain water and re-lubricate metal drivetrain parts.

Key Info:

Brand: HPI
Part No: HPI-160546
Barcode: 5050864031783
Max Voltage: 7.4v+ (LiPo)
Gear Material: Metal

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Questions & Answers

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Hi will this fit in the hpi vorza truggy nitro? As a upgrade

Mark Kelly / 6th January 2026

Yes that should fit.

Rich @ Wheelspin Models

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