--- product_id: 503700190 title: "RCHUBAM Metal Transmission Case Gearbox with Gear 9.7:1. for 1/18 TRX4M Bronco Defender 9791X RC Crawler Car (F)" brand: "rchubam" price: "¥9013" currency: JPY in_stock: true category: "Rchubam" url: https://www.desertcart.jp/products/503700190-rchubam-metal-transmission-case-gearbox-with-gear-9-7-1 store_origin: JP region: Japan --- # CNC machined aluminum cover Perfect fit for 1/18 TRX4M Bronco Defender 16.6:1 precise gear ratio RCHUBAM Metal Transmission Case Gearbox with Gear 9.7:1. for 1/18 TRX4M Bronco Defender 9791X RC Crawler Car (F) **Brand:** rchubam **Price:** ¥9013 **Availability:** ✅ In Stock ## Summary > ⚙️ Upgrade your RC game with precision and power! ## Quick Answers - **What is this?** RCHUBAM Metal Transmission Case Gearbox with Gear 9.7:1. for 1/18 TRX4M Bronco Defender 9791X RC Crawler Car (F) by rchubam - **How much does it cost?** ¥9013 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/503700190-rchubam-metal-transmission-case-gearbox-with-gear-9-7-1) ## Best For - rchubam enthusiasts ## Why This Product - Trusted rchubam brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Plug-and-Play Upgrade:** No assembly required—upgrade your RC crawler instantly and dominate every terrain with confidence. - • **Seamless Compatibility:** Specifically tailored for the 1/18 TRX4M Bronco Defender, guaranteeing effortless installation and perfect fit. - • **Durable CNC Aluminum Housing:** Robust, lightweight metal casing ensures long-lasting protection and sleek aesthetics for your transmission. - • **Precision Engineered Gearing:** Experience smooth, reliable torque with a 16.6:1 speed ratio designed for optimal RC crawler performance. - • **Enhanced Differential Stability:** Stabilizes front and rear differential gears for smoother rotation and improved crawling control. ## Overview The RCHUBAM Metal Transmission Case Gearbox offers a CNC machined aluminum protective cover and a finely tuned 16.6:1 gear ratio, engineered specifically for the 1/18 TRX4M Bronco Defender RC Crawler. This durable, plug-and-play gearbox enhances differential stability and smoothness, delivering superior performance and reliability for serious RC enthusiasts. ## Description Features:1. CNC machined aluminum protective cover. 2.Fitted with metal internal gears and bearings.3.Suit for 1/18 TRX4M Defender RC Crawler Car.4. Stabilize the front and rear differential parts and gears, and rotate smoothly.Model: Fast Model /Normal Model:1. Normal Gears Reduction Ratio in the Gearbox 16.6:1Reduction Ratio.2. Fast Model Reduction Ratio in the Gearbox 9.7:1 Reduction Ratio.3. Speed Reducer Model Reduction Ratio in the Gearbox 40.3:1 Reduction Ratio.Specifications:Material: metal/aluminum alloy. Quantity: 1Pcs. Color: Black.Size:As the picture show.Net Weight: 80g.Package Includes:1Set * RC Transmission Case ## Features - CNC machined aluminum protective cover. - Retrofitting good parts of the remote control car will help improve its performance. - Suits for:1/18 TRX4M Defender RC Crawler Car. - Fast Model Reduction Ratio in the Gearbox 9.7:1Reduction Ratio. - Package Includes:1 X 1/18 Transmission Gearbox. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0BS187KXH | | Additional Features | Portable | | Age Range Description | Adult | | Best Sellers Rank | #1,416,274 in Toys & Games ( See Top 100 in Toys & Games ) #2,270 in RC Vehicle Transmission Gearboxes | | Brand Name | RCHUBAM | | Color | F | | Customer Reviews | 4.8 4.8 out of 5 stars (5) | | Included Components | 1 | | Item Dimensions | 0.1 x 0.1 x 0.1 inches | | Item Type Name | 1/18 | | Manufacturer | RCHUBAM | | Manufacturer Part Number | M009136 | | Manufacturer recommended age | 18 years and up | | Material Type | Metal | | Model Name | 1/18 | | Number of Items | 1 | | Operation Mode | manual | | Power Source | Battery Powered | | Scale | 1:18 Scale | | Theme | car | | Toy Vehicle Form | Crawler | ## Images ![RCHUBAM Metal Transmission Case Gearbox with Gear 9.7:1. for 1/18 TRX4M Bronco Defender 9791X RC Crawler Car (F) - Image 1](https://m.media-amazon.com/images/I/61tNfft7onL.jpg) ## Available Options This product comes in different **Color** options. ## Frequently Bought Together - RCHUBAM Metal Transmission Case Gearbox with Gear 16.6:1. for 1/18 TRX4M Bronco Defender RC Crawler Car 9791 (N) - INJORA 59MM Shocks Long Threaded Shock Absorber Oil Damper for TRX4M TRX4MT 1/18 RC Crawler Upgrade (Red) - INJORA Drive Shaft Steel Front Rear Center Shaft for TRX4M Defender Bronco 1/18 RC Crawler Upgrade,2PCS --- ## 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.jp/products/503700190-rchubam-metal-transmission-case-gearbox-with-gear-9-7-1](https://www.desertcart.jp/products/503700190-rchubam-metal-transmission-case-gearbox-with-gear-9-7-1) --- *Product available on Desertcart Japan* *Store origin: JP* *Last updated: 2026-11-10*