---
product_id: 527456810
title: "INJORA 40.3:1 Stainless Steel Transmission Gear Set for TRX4M"
brand: "injora"
price: "$27.78"
currency: USD
in_stock: true
category: "Injora"
url: https://www.desertcart.us/products/527456810-injora-40-3-1-stainless-steel-transmission-gear-set-trx4m
store_origin: US
region: United States of America
---

# CNC machined stainless steel 40.3:1 ultra-low gear ratio Rust & wear resistant durability INJORA 40.3:1 Stainless Steel Transmission Gear Set for TRX4M

**Brand:** injora
**Price:** $27.78
**Availability:** ✅ In Stock

## Summary

> ⚙️ Elevate your RC game with torque that never quits!

## Quick Answers

- **What is this?** INJORA 40.3:1 Stainless Steel Transmission Gear Set for TRX4M by injora
- **How much does it cost?** $27.78 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/527456810-injora-40-3-1-stainless-steel-transmission-gear-set-trx4m)

## Best For

- injora enthusiasts

## Why This Product

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

## Key Features

- • **Complete Upgrade Kit:** Includes all transmission gears plus an 11-tooth motor pinion for seamless TRX4M Defender and Bronco enhancements.
- • **Precision CNC Machining:** Engineered with exacting CNC technology for flawless fit and superior strength under pressure.
- • **Unstoppable Torque Power:** Experience rock-climbing dominance with an ultra-low 40.3:1 gear ratio designed for maximum torque.
- • **Rustproof Stainless Steel:** Crafted from premium stainless steel to resist corrosion and extend your gear set’s lifespan.
- • **Built for Serious Crawlers:** Optimized for TRX4M models, this gear set transforms your crawler into a trail-conquering powerhouse.

## Overview

The INJORA 40.3:1 Stainless Steel Transmission Gear Set is a precision CNC-machined upgrade designed for TRX4M RC crawlers. Featuring ultra-low gear reduction for maximum torque, rust-resistant stainless steel construction, and a complete gear kit including an 11-tooth motor pinion, it delivers unmatched durability and rock-climbing power for serious outdoor RC enthusiasts.

## Description

Buy INJORA 40.3:1 Stainless Steel Transmission Gear Set for TRX4M: Gears - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

## Features

- CNC machined, durable and greater strength, long service life.
- Stainless steel materials, with excellent rust resistant,enhance wear resistance.
- Includes all transmission gears and a 11-tooth motor pinion.
- Ultra-low 40.3:1 reduction ratio for maximum rock-climbing power and unstoppable torque.
- Low range transmission gear set for TRX4M Defender, Bronco, K10 High Trail, F150 1/18 crawler car upgrade.
- Note: Don't forget to grease the gears!!!
- AGE RECOMMENDATION: Not for children under 14 years.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0C1CTWH9X |
| Age Range Description | Unisex Adult |
| Best Sellers Rank | #34,948 in Toys & Games ( See Top 100 in Toys & Games ) #1 in RC Vehicle Transmission Gears |
| Brand Name | INJORA |
| Color | Silver |
| Customer Reviews | 4.8 4.8 out of 5 stars (600) |
| Educational Objective | Develop problem-solving skills through assembly and understanding of mechanical principles |
| Included Components | Gear |
| Indoor Outdoor Usage | Outdoor |
| Item Dimensions | 3.94 x 2.76 x 0.79 inches |
| Item Type Name | RC Gear |
| Manufacturer | INJORA |
| Manufacturer Maximum Age (MONTHS) | 168 |
| Manufacturer Minimum Age (MONTHS) | 168 |
| Manufacturer Part Number | 4M-36 |
| Material Type | Stainless Steel |
| Model Number | 4M-36 |
| Number of Packs | 1 |
| Number of Players | 1 |
| Operation Mode | Manual |
| Power Source | Battery |
| Set Name | Low Range Transmission Gear Set |
| Size | 40.3:1 |
| Subject Character | RC Gear |
| Supported Battery Types | No batteries required |
| Theme | RC |

## Images

![INJORA 40.3:1 Stainless Steel Transmission Gear Set for TRX4M - Image 1](https://m.media-amazon.com/images/I/51kWABhvhtL.jpg)

## Available Options

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

## Frequently Bought Together

- INJORA 15g Stainless Steel 40.3:1 Low Range Transmission Gear Set for TRX4M 1/18 RC Crawler Car Upgrade
- INJORA Steel Sealed Bearing Kit for TRX4M 1/18 RC Crawler Upgrade Parts, 22PCS
- INJORA Drive Shaft Steel Black Front Rear Center Shaft with D Shaped Hole for TRX4M Defender Bronco 1/18 RC Crawler Upgrade, 22g/Set

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**Shop now:** [https://www.desertcart.us/products/527456810-injora-40-3-1-stainless-steel-transmission-gear-set-trx4m](https://www.desertcart.us/products/527456810-injora-40-3-1-stainless-steel-transmission-gear-set-trx4m)

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-08-14*