--- product_id: 535338541 title: "INJORA Steel D-Shaped Hole Drive Shaft for 1/18 TRX4M Defender Bronco" brand: "injora" price: "$33.86" currency: USD in_stock: true reviews_count: 13 category: "Injora" url: https://www.desertcart.us/products/535338541-injora-steel-d-shaped-hole-drive-shaft-for-1-18 store_origin: US region: United States of America --- # D-shaped & rounded rectangle holes for tight fit Precision scale joint & spline diameter 100% stainless steel build INJORA Steel D-Shaped Hole Drive Shaft for 1/18 TRX4M Defender Bronco **Brand:** injora **Price:** $33.86 **Availability:** ✅ In Stock ## Summary > ⚙️ Upgrade your ride with steel precision — because your Bronco deserves the best! ## Quick Answers - **What is this?** INJORA Steel D-Shaped Hole Drive Shaft for 1/18 TRX4M Defender Bronco by injora - **How much does it cost?** $33.86 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/535338541-injora-steel-d-shaped-hole-drive-shaft-for-1-18) ## 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 Fit:** D-shaped and rounded rectangle holes ensure a rock-solid connection to transmission and axles, minimizing play and torque twist. - • **Plug & Play Upgrade:** Designed specifically for 1/18 TRX4M Defender Bronco with included hardware for easy installation—no guesswork, just performance. - • **Unmatched Durability:** Stainless steel construction resists rust and wear for long-lasting performance. - • **Authentic Scale Realism:** Engineered with scale joint and spline diameters for a true-to-life appearance that elevates your TRX4M Defender Bronco. - • **Optimized Weight & Balance:** Heavier metal shafts lower your vehicle’s center of gravity, enhancing stability and control on every trail. ## Overview The INJORA Steel D-Shaped Hole Drive Shaft is a premium stainless steel upgrade designed exclusively for the 1/18 TRX4M Defender Bronco. Featuring a rust-resistant build, precision-engineered D-shaped and rounded rectangle holes for a tighter fit, and scale-accurate joint dimensions, this drive shaft enhances durability, realism, and vehicle stability. Trusted by enthusiasts for its easy installation and superior performance, it’s the ultimate metal replacement for stock plastic shafts. ## Description Buy INJORA Steel D-Shaped Hole Drive Shaft for 1/18 TRX4M Defender Bronco: Rotor Shafts - desertcart.com ✓ FREE DELIVERY possible on eligible purchases Review: Solid upgrade from Injora - This is a great upgrade for the stock TRX4M - plastic to metal conversion. It's a no brainer. They're metal so they're a ton stronger than the stock plastic ones. They look way cooler than the stock ones as well. And they're heavier so it helps keep the CoG low. They're also from Injora - one of the most reputable brands in the business. Easy enough to assemble and came with all necessary hardware - a couple of set screws. Make sure when you install them, you install them "in-phase". Google that and you'll see what I mean. Installing this way will help reduce torque twist. Review: Awesome driveshafts - Heavy duty, seem to work better than the stock plastic ones. Recommend using lock tight on the screw, one of mine fell out. They did come with spare screws. I have not had an issue with the pins falling out. ## Features - Stainless steel materials construction, not easy to rust - Enhanced structure design for long-life durability - Scale Joint and spline diameter size for realistic appearance - D-Shaped and rounded rectangle holes desgin offer tighter connection to transmission and axles - Perfect for TRX4M Bronco Defender stock gears and INJORA gears. However, due to different manufacturing processes, we can not guarantee drive shaft will or will not fit on other brand axle gears. - Note: Designed for 1/18 TRX4M Defender Bronco. Not Compatible with TRX4M High Trail K10 F150. - AGE RECOMMENDATION: Not for children under 14 years. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0C7GQ6MFL | | Best Sellers Rank | #31,249 in Toys & Games ( See Top 100 in Toys & Games ) #3 in RC Vehicle Rotor Shafts | | Brand Name | INJORA | | Customer Reviews | 4.7 out of 5 stars 571 Reviews | | Manufacturer | INJORA | | Material Type | Steel | | Model | 4M-50BK | | Part Number | 4M-50BK | | Unit Count | 6.0 Count | ## Images ![INJORA Steel D-Shaped Hole Drive Shaft for 1/18 TRX4M Defender Bronco - Image 1](https://m.media-amazon.com/images/I/51kDc2TWtBL.jpg) ![INJORA Steel D-Shaped Hole Drive Shaft for 1/18 TRX4M Defender Bronco - Image 2](https://m.media-amazon.com/images/I/61+4tFB2BlL.jpg) ![INJORA Steel D-Shaped Hole Drive Shaft for 1/18 TRX4M Defender Bronco - Image 3](https://m.media-amazon.com/images/I/513LjJcjbNL.jpg) ![INJORA Steel D-Shaped Hole Drive Shaft for 1/18 TRX4M Defender Bronco - Image 4](https://m.media-amazon.com/images/I/51mj6Py5gdL.jpg) ![INJORA Steel D-Shaped Hole Drive Shaft for 1/18 TRX4M Defender Bronco - Image 5](https://m.media-amazon.com/images/I/51W-kGToxGL.jpg) ## Questions & Answers **Q: Are these version 2? Same as chrome ones.** A: Yes they the same, I have both sets so, I can confirm that they're the same **Q: Whould these fit fms fcx or furitek caymen? Thanks** A: They are for 1:18 scale crawlers, but they're only a few bucks, so try em out. You could probably cross reference sizes though to find out for sure. I know the hole to attach the shaft is a d-shaped hole. **Q: Any idea if these will work with the K10 High Trail?** A: I use them on my K10 Monster Truck build with 59mm INJORA shocks. It's at their limit, but functional. I think INJORA just came out with a stainless steel version, specifically for the K10, on their website. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Solid upgrade from Injora *by J***Y on March 6, 2026* This is a great upgrade for the stock TRX4M - plastic to metal conversion. It's a no brainer. They're metal so they're a ton stronger than the stock plastic ones. They look way cooler than the stock ones as well. And they're heavier so it helps keep the CoG low. They're also from Injora - one of the most reputable brands in the business. Easy enough to assemble and came with all necessary hardware - a couple of set screws. Make sure when you install them, you install them "in-phase". Google that and you'll see what I mean. Installing this way will help reduce torque twist. ### ⭐⭐⭐⭐⭐ Awesome driveshafts *by M***E on January 12, 2026* Heavy duty, seem to work better than the stock plastic ones. Recommend using lock tight on the screw, one of mine fell out. They did come with spare screws. I have not had an issue with the pins falling out. ### ⭐⭐⭐⭐⭐ Bronco 1/18 *by A***T on April 8, 2026* Perfect fit ## Frequently Bought Together - INJORA Drive Shaft Steel Black Front Rear Center Shaft with D Shaped Hole for TRX4M Defender Bronco 1/18 RC Crawler Upgrade, 22g/Set - INJORA High Clearance Chassis Links Set Brass Black Coating Link for 1/18 TRX4M Defender Bronco Upgrade Parts RC Crawler, 48g - INJORA Brass & Aluminium 59mm Shocks- Long Threaded Shock Absorber Oil Damper for TRX4M TRX4MT 1/18 RC Crawler Upgrade --- ## 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/535338541-injora-steel-d-shaped-hole-drive-shaft-for-1-18](https://www.desertcart.us/products/535338541-injora-steel-d-shaped-hole-drive-shaft-for-1-18) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-07-21*