---
product_id: 643455065
title: "2PCS Kids Ride On Car Gearbox 12V RS550 40000RPM High-Speed Motor Gearbox for Power Wheels Kid's Ride on Toys,High Torque Motor for Kid's Electric Vehicle Replace Parts,2 Free Coupler"
brand: "polynx"
price: "$83.39"
currency: USD
in_stock: true
category: "Polynx"
url: https://www.desertcart.us/products/643455065-2pcs-kids-ride-on-car-gearbox-12v-rs550-40000rpm-high
store_origin: US
region: United States of America
---

# 12V high-voltage power 12mm shaft diameter for universal fit 40000 RPM ultra-fast motor speed 2PCS Kids Ride On Car Gearbox 12V RS550 40000RPM High-Speed Motor Gearbox for Power Wheels Kid's Ride on Toys,High Torque Motor for Kid's Electric Vehicle Replace Parts,2 Free Coupler

**Brand:** polynx
**Price:** $83.39
**Availability:** ✅ In Stock

## Summary

> ⚡ Power Up Playtime with Speed & Ease!

## Quick Answers

- **What is this?** 2PCS Kids Ride On Car Gearbox 12V RS550 40000RPM High-Speed Motor Gearbox for Power Wheels Kid's Ride on Toys,High Torque Motor for Kid's Electric Vehicle Replace Parts,2 Free Coupler by polynx
- **How much does it cost?** $83.39 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/643455065-2pcs-kids-ride-on-car-gearbox-12v-rs550-40000rpm-high)

## Best For

- polynx enthusiasts

## Why This Product

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

## Key Features

- • **Universal Compatibility:** 12mm shaft diameter and compact design fit most Power Wheels and electric ride-on toys seamlessly.
- • **Plug & Play Installation:** Includes motor cables and couplers—no welding needed, making upgrades effortless and mess-free.
- • **Ready for the Next Adventure:** High-quality plastic build ensures long-lasting use, keeping your child’s ride-on toy running strong.
- • **Turbocharge Your Kid’s Ride:** Upgrade with 12V RS550 motors delivering 40000 RPM for thrilling speed and performance.
- • **Double the Power, Double the Fun:** Two high-torque gearboxes included to maximize durability and performance for twin-motor setups.

## Overview

This 2-piece set of 12V RS550 high-speed motor gearboxes offers 40000 RPM performance, designed as universal replacements for Power Wheels and kids’ electric ride-on toys. Featuring easy installation with included couplers and cables, these durable gearboxes provide a high-torque upgrade to enhance your child’s ride-on experience.

## Description

desertcart.com: 2PCS Kids Ride On Car Gearbox 12V RS550 40000RPM High-Speed Motor Gearbox for Power Wheels Kid's Ride on Toys,High Torque Motor for Kid's Electric Vehicle Replace Parts,2 Free Coupler : Toys & Games

## Features

- 2PCS 12 Volt Universal Motor Gearbox is Used for Power Wheels, Kids Electric Toys Car, Ride On Car Motor Upgrade and Replacement Parts
- The products include: two high-quality gearboxes, two white circular couplers, and two motor connection Cables
- Suitable for repairing and upgrading power wheels, please compare the size before purchasing, voltage: DC12V, speed: 40000RPM, shaft hole diameter: 12mm (0.48"); motor diameter: 35mm (1.39")
- With a coupler, you only need to fix the coupler to the tire to customize the installation.
- With cable, easy to install and disassemble, no need for electric welding

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0D54M1H77 |
| Best Sellers Rank | #58,272 in Toys & Games ( See Top 100 in Toys & Games ) #88 in Kids' Ride-On Replacement Parts |
| Brand Name | POLYNX |
| Customer Reviews | 3.9 3.9 out of 5 stars (110) |
| Horsepower | 45 Watts |
| Included Components | 2 Gearboxes, 2 Adapters, 2 Motor Cable |
| Item Dimensions W x H | 3.71"W x 4.6"H |
| Item Type Name | Gearbox |
| Manufacturer | POLYNX |
| Material Type | Plastic |
| Model | White Coupler |
| Model Name | 12V RS550 40000RPM |
| Part Number | RS550 |
| Shaft Diameter | 12 Millimeters |
| Speed | 40000 RPM |
| UPC | 782331890009 |
| Voltage | 12 Volts |

## Product Details

- **Brand:** POLYNX
- **Horsepower:** 45 Watts
- **Model Name:** 12V RS550 40000RPM
- **Speed:** 40000 RPM
- **Voltage:** 12 Volts

## Images

![2PCS Kids Ride On Car Gearbox 12V RS550 40000RPM High-Speed Motor Gearbox for Power Wheels Kid's Ride on Toys,High Torque Motor for Kid's Electric Vehicle Replace Parts,2 Free Coupler - Image 1](https://m.media-amazon.com/images/I/61hj+L2oXJL.jpg)

## Available Options

This product comes in different **Model** options.

## Frequently Bought Together

- 2PCS Kids Ride On Car Gearbox 12V RS550 40000RPM High-Speed Motor Gearbox for Power Wheels Kid's Ride on Toys Upgrade,High Torque Motor for Kid's Electric Vehicle Replace Parts,2 Free Coupler
- 14PCS Set of Switch Kit for Power Wheels Kid's Ride on Toys Replacement Parts, Foot Pedal/Forward Stop Backward Shift/Push Button Power Supply/Reverse Handle Gear/High&Low Speed/Charging Port/Fuse

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-07-14*