---
product_id: 594302927
title: "45KG Coreless Servo Motor High Torque Steering: Smraza 8.4V Waterproof Servo Digital Stainless Steel Gear Servo for RC 1/10 1/8 1/12 Scale Car Truck Crawler/Robot/Boat with 25T Servo Horn（180°）"
brand: "smraza"
price: "€ 56.19"
currency: EUR
in_stock: true
reviews_count: 8
category: "Smraza"
url: https://www.desertcart.es/products/594302927-45kg-coreless-servo-motor-high-torque-steering-smraza-8-4v
store_origin: ES
region: Spain
---

# Full metal gears for rugged durability 0.10 sec/60° ultra-fast response 51 kg.cm torque powerhouse 45KG Coreless Servo Motor High Torque Steering: Smraza 8.4V Waterproof Servo Digital Stainless Steel Gear Servo for RC 1/10 1/8 1/12 Scale Car Truck Crawler/Robot/Boat with 25T Servo Horn（180°）

**Brand:** smraza
**Price:** € 56.19
**Availability:** ✅ In Stock

## Summary

> ⚡ Power Meets Precision: Dominate Every Terrain with Silent Strength!

## Quick Answers

- **What is this?** 45KG Coreless Servo Motor High Torque Steering: Smraza 8.4V Waterproof Servo Digital Stainless Steel Gear Servo for RC 1/10 1/8 1/12 Scale Car Truck Crawler/Robot/Boat with 25T Servo Horn（180°） by smraza
- **How much does it cost?** € 56.19 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.es](https://www.desertcart.es/products/594302927-45kg-coreless-servo-motor-high-torque-steering-smraza-8-4v)

## Best For

- smraza enthusiasts

## Why This Product

- Trusted smraza brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Built to Endure:** All-steel gears and CNC aluminum casing ensure rock-solid durability and superior vibration resistance in extreme conditions.
- • **Unmatched Torque Power:** Delivers a commanding 51 kg.cm torque to conquer the toughest terrains and heavy loads with ease.
- • **Versatile Compatibility:** Fits 1/8, 1/10, and 1/12 scale RC cars, trucks, crawlers, and more — the ultimate upgrade for serious hobbyists.
- • **Lightning-Fast Precision:** Experience razor-sharp 0.10 sec/60° response time for flawless control in high-stakes RC racing and rock crawling.
- • **Waterproof & Noise-Resistant:** Sealed with waterproof screws and engineered for whisper-quiet operation, so your servo performs silently under pressure.

## Overview

The 45KG Coreless Servo Motor offers a high-torque 51 kg.cm output with ultra-fast 0.10 sec/60° response, featuring full metal gears and a waterproof CNC aluminum casing. Compatible with multiple RC scales and models, it delivers durable, quiet, and precise steering control ideal for demanding RC applications like rock crawling, racing, and heavy-load climbing.

## Description

desertcart.com: 45KG Coreless Servo Motor High Torque Steering: Smraza 8.4V Waterproof Servo Digital Stainless Steel Gear Servo for RC 1/10 1/8 1/12 Scale Car Truck Crawler/Robot/Boat with 25T Servo Horn（180°） : Toys & Games

Review: Works a treat in my Redcat Gen 8 Pro - Looks, feels, and performs like my higher coat servos. I wanted something with enough strength to move the weight of the actual crawler for when things go "sideways"! This servo does that without breaking a sweat. It doesnt even make noise while pushing the crawler back to all four wheels. Its pretty fast for its stated torque, usually when purchasing a higher torque servo you loose something in the way of speed, but this servo breaks that normality giving it a good value for your money. I have gotten it wet before I opened it up and coated the PCB and also the motor and potentiometer leads with MG Chemicals Conformal Coating *which makes your electronics like recievers and servos COMPLETELY waterproof. After coating in Silicon Conformal I drove the truck UNDER WATER , yes you read correctly, under water in a running stream about 13 feet across and max 2.5 to 3 feet deep. The crawler came up the opposite bank fine and kept on going. I checked the servo anyway to see what if any water may have gotten inside but it was dry. The reciever was soaked through but dont care as the Conformal Coating does its job perfectly. The servo hasn't had any issues with centering for me using the stock Redcat radio or with the upgraded Flysky FS-G7P radio. The wire length is pretty long so I had no issues being able to zip tie it where I wanted it out of the way of things. So far its been durable and has power to spare. I am using it with 7.4V.
Review: Great servo. Plenty of power. - I've used this on 2 different SOA conversions and both have been flawless. Must stronger than the factory servo on a Redcat Ascent and TRX4. I nicked the wire on one of them (my fault) and had to repair but the unit comes with a very long servo wire so it was easy to cut it back past the damaged section and resolder to the control board in the servo. Very easy to work on and now that I've routed the wire away from my suspension the unit has been rock solid since. If you need an affordable but powerful 1/10 scale servo this is the one.

## Features

- [Compatible with RC Cars]: Featuring 2BB and a 25T Metal RC Servo Horn, This Servo Motor Is Suitable for a Wide Range of Remote Control Models, Including 1/8 Servo, 1/10 Servo and 1/12 Scale Rock Crawler Truck, for RC Cars/Robots/Airplane/Mechanical Arm/Quadcopter/Boats and So On.Compatible with TRX4 and SCX10.Dimensions: 40 x 39 x 20mm (1.57 x 1.53 x 0.79in) Weight:70g (2.47oz), Degree:0-180.
- [51 kg High Torque Servo]: Operates Efficiently at 5V–8.4V, Delivering 51 kg.cm (708.26 oz.in) Torque at 8.4V. Ideal for RC Crawlers Climbing Steep Slopes and Rocks, and Monster Trucks in Mud Racing and Heavy-load Climbing, Ensuring Reliable Performance in Demanding Conditions.
- [0.10 sec/60°And Low Noise]：With Rapid 0.11sec/60°@ 7.4V and 0.10sec/60°@ 8.4V Response, This High Speed Servo Provides Spot-on Precision for Critical Rock Crawling/Racing Control. Low Noise Operation While Adjusting Steering Under Heavy Load in Rocky Terrain.
- [Full Metal Gears]: The High Precision All-steel Gears Servo Provide Durability and Reliability, Exhibit Superior Resistance to Vibration and Impact, Making Them Well-suited for High - Power Applications Requiring Stable Performance in Harsh Environments.
- [Coreless Servo]: With a High - Precision Potentiometer and Digital Chip, This RC Car Servo Ensures Stability and Interference Resistance. Its CNC Aluminum Casing Aids Heat Dissipation and Minimizes Noise, While Waterproof Rubber-sealed Screws Enhance Performance and Lifespan.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0CNFZ8BW8 |
| Best Sellers Rank | #63,102 in Toys & Games ( See Top 100 in Toys & Games ) #53 in RC Servos |
| Customer Reviews | 4.0 4.0 out of 5 stars (208) |
| Item Weight | 3.52 ounces |
| Manufacturer | Smraza |
| Manufacturer recommended age | 15 years and up |
| Product Dimensions | 1.61 x 1.57 x 0.79 inches |

## Images

![45KG Coreless Servo Motor High Torque Steering: Smraza 8.4V Waterproof Servo Digital Stainless Steel Gear Servo for RC 1/10 1/8 1/12 Scale Car Truck Crawler/Robot/Boat with 25T Servo Horn（180°） - Image 1](https://m.media-amazon.com/images/I/710gaZJFRSL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Works a treat in my Redcat Gen 8 Pro
*by R***Y on October 31, 2024*

Looks, feels, and performs like my higher coat servos. I wanted something with enough strength to move the weight of the actual crawler for when things go "sideways"! This servo does that without breaking a sweat. It doesnt even make noise while pushing the crawler back to all four wheels. Its pretty fast for its stated torque, usually when purchasing a higher torque servo you loose something in the way of speed, but this servo breaks that normality giving it a good value for your money. I have gotten it wet before I opened it up and coated the PCB and also the motor and potentiometer leads with MG Chemicals Conformal Coating *which makes your electronics like recievers and servos COMPLETELY waterproof. After coating in Silicon Conformal I drove the truck UNDER WATER , yes you read correctly, under water in a running stream about 13 feet across and max 2.5 to 3 feet deep. The crawler came up the opposite bank fine and kept on going. I checked the servo anyway to see what if any water may have gotten inside but it was dry. The reciever was soaked through but dont care as the Conformal Coating does its job perfectly. The servo hasn't had any issues with centering for me using the stock Redcat radio or with the upgraded Flysky FS-G7P radio. The wire length is pretty long so I had no issues being able to zip tie it where I wanted it out of the way of things. So far its been durable and has power to spare. I am using it with 7.4V.

### ⭐⭐⭐⭐⭐ Great servo. Plenty of power.
*by B***N on January 4, 2026*

I've used this on 2 different SOA conversions and both have been flawless. Must stronger than the factory servo on a Redcat Ascent and TRX4. I nicked the wire on one of them (my fault) and had to repair but the unit comes with a very long servo wire so it was easy to cut it back past the damaged section and resolder to the control board in the servo. Very easy to work on and now that I've routed the wire away from my suspension the unit has been rock solid since. If you need an affordable but powerful 1/10 scale servo this is the one.

### ⭐ Lasted 30 seconds.. first time resistance on a crawler course it stripped the internal gears!
*by B***! on June 16, 2025*

Servo looked great, felt good, sounded clean and strong.. was very strong after doing the proper install and testing it on my work bench. I was very happy with it until I crawled on my crawler course for I kid you not 30 SECONDS! On the VERY first obstacle I had to turn on the gears in the servo immediately stripped out.. JUNK. I used this servo on my TRX4 high trail with lots of brass parts.. it’s a decent heavy truck but STILL there is ZERO reason all the gears should have stripped out internally in the servo that quickly. It didn’t even load the servo up or anything.. it wasn’t like it was struggling to turn.. it turned no issue and then suddenly I went to turn back the other direction and it just made a whining noise. The servo only steers the tires now if I hold the front tires in the air with the truck off the ground .. ANY resistance what so ever just makes it not steer at all along with a whining noise like the motor is spinning and gears are stripped. Super upset cuz I needed it for an event this weekend and it ruined my fun. Shoulda went with the $40.00 all aloy cased servo by that other company instead of this half plastic half metal servo with supposed “metal gears” which must be made out of monkey metal. PS. I use an aftermarket traxxas metal servo horn so I know the horn is not stripped.. it’s def the internal gears of the servo. HUGE bummer.

## Frequently Bought Together

- 45KG Coreless Servo Motor High Torque Steering: Smraza 8.4V Waterproof Servo Digital Stainless Steel Gear Servo for RC 1/10 1/8 1/12 Scale Car Truck Crawler/Robot/Boat with 25T Servo Horn（180°）
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*Product available on Desertcart Spain*
*Store origin: ES*
*Last updated: 2026-02-19*