---
product_id: 527456810
title: "INJORA 15g Stainless Steel 40.3:1 Low Range Transmission Gear Set for TRX4M 1/18 RC Crawler Car Upgrade"
brand: "injora"
price: "17599CFA"
currency: XOF
in_stock: true
reviews_count: 13
category: "Injora"
url: https://www.desertcart.sn/products/527456810-injora-15g-stainless-steel-40-3-1-low-range-transmission
store_origin: SN
region: Senegal
---

# 40.3:1 ultra-low gear ratio CNC machined precision Stainless steel rust-resistant INJORA 15g Stainless Steel 40.3:1 Low Range Transmission Gear Set for TRX4M 1/18 RC Crawler Car Upgrade

**Brand:** injora
**Price:** 17599CFA
**Availability:** ✅ In Stock

## Summary

> 🧗‍♂️ Crawl harder, climb higher—gear up like a pro!

## Quick Answers

- **What is this?** INJORA 15g Stainless Steel 40.3:1 Low Range Transmission Gear Set for TRX4M 1/18 RC Crawler Car Upgrade by injora
- **How much does it cost?** 17599CFA with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sn](https://www.desertcart.sn/products/527456810-injora-15g-stainless-steel-40-3-1-low-range-transmission)

## 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

- • **Built to Last:** Crafted from premium stainless steel for superior durability and rust resistance—gear up for years of rugged adventures.
- • **Complete Upgrade Kit:** Includes all transmission gears plus an 11-tooth motor pinion—everything you need to transform your TRX4M crawler.
- • **Precision CNC Machining:** Experience flawless fit and smooth operation with expertly machined gears that drop right in.
- • **Rock-Climbing Powerhouse:** Unlock unstoppable torque with a 40.3:1 reduction ratio designed for ultimate crawling control.
- • **Pro-Recommended Performance:** Trusted by enthusiasts for 2+ years of reliable, slow-speed crawling power that outperforms stock setups.

## Overview

The INJORA 15g Stainless Steel 40.3:1 Low Range Transmission Gear Set is a premium upgrade for the TRX4M 1/18 RC crawler, featuring CNC-machined stainless steel gears for exceptional durability and rust resistance. Its ultra-low gear ratio delivers maximum torque and rock-climbing capability, making it the go-to choice for serious RC enthusiasts seeking enhanced crawling performance and long-lasting reliability.

## Description

Buy INJORA 15g Stainless Steel 40.3:1 Low Range Transmission Gear Set for TRX4M 1/18 RC Crawler Car Upgrade: Gears - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: 2 years in, still recommend. - TL;DR Only one run, so far so good. Running brushless Furitek. Update March 2025. Almost 2 years on these gears and still working great. Still highly recommend this if you want to rock crawl. Too slow for trail or general purpose driving, but a must have if you’re looking for more torque and slow speed crawling. I’ve had no issues out of these gears (or anything on my 4M for that matter) Update: April 2024, 1 year later still runs like the day I installed. I don’t drive it every day but at least a couple times per week. Would buy again. Original review: Installed in my Bronco running bearing kit and the Furitek brushless motor/esc. Gears dropped right in no fitment issues. There has been a clicking ever since installing the new motor but the plastic crawler gears from Traxxas also made a clicking. So I just run it. Worth noting though. These gears appear to be nicely machined. If you’re into rock crawling with your TRX4m, I’d suggest this as your first upgrade along with bearings second. Those two upgrades even on the stock motor and electronics make it a whole new truck. The torque of the stock motor is actually pretty good with the crawl gears. I bought these injora gears because I thought that I had stripped the plastic ones causing them to click when driving, turns out these click too. The quality of injora parts is excellent. I’m also running their brass differential covers front and rear. So far these are a 5 star all day. If anything happens, I’ll update my review.
Review: Just About Perfect! - It's too bad these are hidden away in a casing as they are beautifully finished and nice to look at. During the installation, I also installed sealed bearings. I am amazed at the crawling abilities these gears create. Along with some other upgrades I made at the same time, my Traxxas 1/18 scale Land Rover Defender climbs over the four obstacles I build in the yard almost like it's flat land. Yes, top end speed is reduced but, so what. I wanted crawling ability and that's exactly what I got! I feel that with the installation of these low range gears a brushless motor is no longer required, although, a brushless motor gives good low speed modulation and a good top end. I'll sacrifice top end for crawling ability and just a $13 price tag.

## 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!!!

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0C1CTWH9X |
| Age Range Description | Unisex Adult |
| Best Sellers Rank | #30,806 in Toys & Games ( See Top 100 in Toys & Games ) #2 in RC Vehicle Transmission Gears |
| Brand Name | INJORA |
| Color | Silver |
| Customer Reviews | 4.8 out of 5 stars 574 Reviews |
| Educational Objective | Develop problem-solving skills through assembly and understanding of mechanical principles |
| Included Components | Gear |
| Indoor Outdoor Usage | Outdoor |
| Is Assembly Required | No |
| 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) | 168.00 |
| Manufacturer Part Number | 4M-36 |
| Material Type | Stainless Steel |
| Model Number | 4M-36 |
| 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 15g Stainless Steel 40.3:1 Low Range Transmission Gear Set for TRX4M 1/18 RC Crawler Car Upgrade - Image 1](https://m.media-amazon.com/images/I/51kWABhvhtL.jpg)
![INJORA 15g Stainless Steel 40.3:1 Low Range Transmission Gear Set for TRX4M 1/18 RC Crawler Car Upgrade - Image 2](https://m.media-amazon.com/images/I/61yOZ9RG+EL.jpg)
![INJORA 15g Stainless Steel 40.3:1 Low Range Transmission Gear Set for TRX4M 1/18 RC Crawler Car Upgrade - Image 3](https://m.media-amazon.com/images/I/61FIdQdtQaL.jpg)
![INJORA 15g Stainless Steel 40.3:1 Low Range Transmission Gear Set for TRX4M 1/18 RC Crawler Car Upgrade - Image 4](https://m.media-amazon.com/images/I/613O76pU5sL.jpg)
![INJORA 15g Stainless Steel 40.3:1 Low Range Transmission Gear Set for TRX4M 1/18 RC Crawler Car Upgrade - Image 5](https://m.media-amazon.com/images/I/61TknF8eCAL.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ 2 years in, still recommend.
*by 7***S on April 26, 2023*

TL;DR Only one run, so far so good. Running brushless Furitek. Update March 2025. Almost 2 years on these gears and still working great. Still highly recommend this if you want to rock crawl. Too slow for trail or general purpose driving, but a must have if you’re looking for more torque and slow speed crawling. I’ve had no issues out of these gears (or anything on my 4M for that matter) Update: April 2024, 1 year later still runs like the day I installed. I don’t drive it every day but at least a couple times per week. Would buy again. Original review: Installed in my Bronco running bearing kit and the Furitek brushless motor/esc. Gears dropped right in no fitment issues. There has been a clicking ever since installing the new motor but the plastic crawler gears from Traxxas also made a clicking. So I just run it. Worth noting though. These gears appear to be nicely machined. If you’re into rock crawling with your TRX4m, I’d suggest this as your first upgrade along with bearings second. Those two upgrades even on the stock motor and electronics make it a whole new truck. The torque of the stock motor is actually pretty good with the crawl gears. I bought these injora gears because I thought that I had stripped the plastic ones causing them to click when driving, turns out these click too. The quality of injora parts is excellent. I’m also running their brass differential covers front and rear. So far these are a 5 star all day. If anything happens, I’ll update my review.

### ⭐⭐⭐⭐⭐ Just About Perfect!
*by R***C on March 22, 2026*

It's too bad these are hidden away in a casing as they are beautifully finished and nice to look at. During the installation, I also installed sealed bearings. I am amazed at the crawling abilities these gears create. Along with some other upgrades I made at the same time, my Traxxas 1/18 scale Land Rover Defender climbs over the four obstacles I build in the yard almost like it's flat land. Yes, top end speed is reduced but, so what. I wanted crawling ability and that's exactly what I got! I feel that with the installation of these low range gears a brushless motor is no longer required, although, a brushless motor gives good low speed modulation and a good top end. I'll sacrifice top end for crawling ability and just a $13 price tag.

### ⭐⭐⭐⭐⭐ Excellent Gear Set
*by T***Y on June 11, 2025*

Very nice gear set! I do more crawling with my TRX4M than trailing, and the stock gears are not the best for crawling low speed. This gear set fixed that! The low speed modulation is so much better. I'm running the stock motor. Just make sure to use an ample amount of grease on the gears. And also, the pinion gear is a little difficult to get on the motor shaft. I had to use a C clamp and slowly press it on. Just go easy, because you don't want to bend the motor shaft. Other than that, the install was flawless, and it completely transformed how my TRX4M drives.

## 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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*Product available on Desertcart Senegal*
*Store origin: SN*
*Last updated: 2026-06-23*