--- product_id: 645622666 title: "Stainless Steel 40.3:1 Low Range Gear Set for TRX4M 1/18 RC Crawler Car Upgrade" brand: "injora" price: "$46.92" currency: USD in_stock: true reviews_count: 5 category: "Injora" url: https://www.desertcart.us/products/645622666-stainless-steel-40-3-1-low-range-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 Stainless Steel 40.3:1 Low Range Gear Set for TRX4M 1/18 RC Crawler Car Upgrade **Brand:** injora **Price:** $46.92 **Availability:** ✅ In Stock ## Summary > ⚙️ Elevate your RC game with torque that conquers every climb! ## Quick Answers - **What is this?** Stainless Steel 40.3:1 Low Range Gear Set for TRX4M 1/18 RC Crawler Car Upgrade by injora - **How much does it cost?** $46.92 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/645622666-stainless-steel-40-3-1-low-range-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 - • **Precision CNC Engineering:** Crafted with high-strength stainless steel for flawless fit and long-lasting performance. - • **Complete Gear Set Included:** All necessary gears plus an 11-tooth motor pinion for seamless installation and instant power boost. - • **Rust-Resistant Reliability:** Built to endure with superior corrosion resistance, ensuring your upgrade stays pristine. - • **Unstoppable Torque Mastery:** Experience maximum climbing power with an ultra-low 40.3:1 gear ratio designed for rugged terrains. - • **Tailored for TRX4M 1/18 RC Crawlers:** Specifically designed to elevate your TRX4M crawler’s performance and outpace the competition. ## Overview The INJORA Stainless Steel 40.3:1 Low Range Gear Set is a precision CNC-machined upgrade for TRX4M 1/18 RC crawlers, featuring ultra-low gear ratio for unbeatable torque, durable rust-resistant stainless steel construction, and a complete gear set including an 11-tooth motor pinion. Perfect for enthusiasts seeking enhanced climbing performance and long-lasting reliability. ## Description Performance description: Part Number 4M-36 Material: stainless steel. 40.3:1 Counter Motor pinion: 11 teeth. Weight: 15 g (0.53 oz). Package list: 1 x 40.3:1 gear gears. Review: Great cheap upgrade.. Review: The perfect all around gear ratio ## Features - CNC machined, durable and higher strength, long service life. - Stainless steel materials with excellent rust resistance improve wear resistance. - Includes all gear gears and a 11 tooth motor pinion. - Extremely low reduction ratio of 40.3:1 for maximum climbing performance and unstoppable torque. - Suit for TRX4M 1/18 RC Crawler Car Upgrade. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0C1CTWH9X | | Age Range Description | Adult | | Battery Types | No batteries required | | Best Sellers Rank | #123,110 in Toys & Games ( See Top 100 in Toys & Games ) #5,944 in Remote & App-Controlled Toys | | Brand | INJORA | | Character | Car | | Colour | Silver | | Customer Reviews | 4.8 out of 5 stars 603 Reviews | | Educational Objective | Number Skills | | Included Components | Gear Gear Set | | Indoor Outdoor Usage | Outdoor | | Is Assembly Required | No | | Item Dimensions | 10 x 7 x 2 Centimeters | | Item Type Name | Gear Gear Set | | Manufacturer | INJORA | | Manufacturer Part Number | 4M-36 | | Material | Stainless Steel | | Maximum Recommended age | 168 | | Minimum Recommended age | 18 | | Model Number | 4M-36 | | Number of Players | 1 | | Operation Mode | Manual | | Power Source | Rechargeable battery | | Size | 40.3:1 | | Theme | Vehicle | ## Images ![Stainless Steel 40.3:1 Low Range Gear Set for TRX4M 1/18 RC Crawler Car Upgrade - Image 1](https://m.media-amazon.com/images/I/51kWABhvhtL.jpg) ![Stainless Steel 40.3:1 Low Range Gear Set for TRX4M 1/18 RC Crawler Car Upgrade - Image 2](https://m.media-amazon.com/images/I/61yOZ9RG+EL.jpg) ![Stainless Steel 40.3:1 Low Range Gear Set for TRX4M 1/18 RC Crawler Car Upgrade - Image 3](https://m.media-amazon.com/images/I/61FIdQdtQaL.jpg) ![Stainless Steel 40.3:1 Low Range Gear Set for TRX4M 1/18 RC Crawler Car Upgrade - Image 4](https://m.media-amazon.com/images/I/613O76pU5sL.jpg) ![Stainless Steel 40.3:1 Low Range Gear Set for TRX4M 1/18 RC Crawler Car Upgrade - Image 5](https://m.media-amazon.com/images/I/61TknF8eCAL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Great cheap upgrade.. *by G***N on 9 March 2026* ### ⭐⭐⭐⭐⭐ The perfect all around gear ratio *by M***Y on 21 March 2026* ### ⭐⭐⭐⭐⭐ 2 years in, still recommend. *by D***E on 26 April 2023* ## 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 --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.us/products/645622666-stainless-steel-40-3-1-low-range-gear-set-trx4m](https://www.desertcart.us/products/645622666-stainless-steel-40-3-1-low-range-gear-set-trx4m) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-05-10*