--- product_id: 534301205 title: "Steel D-Shaped Hole Drive Shaft for 1/18 TRX4M Defender Bronco" brand: "injora" price: "€ 44.53" currency: EUR in_stock: true reviews_count: 7 category: "Injora" url: https://www.desertcart.hr/products/534301205-steel-d-shaped-hole-drive-shaft-for-1-18-trx4m store_origin: HR region: Croatia --- # D-shaped hole ensures ultra-tight fit Precision scale joint & spline size Hardened steel for max durability Steel D-Shaped Hole Drive Shaft for 1/18 TRX4M Defender Bronco **Brand:** injora **Price:** € 44.53 **Availability:** ✅ In Stock ## Summary > ⚙️ Upgrade your RC game with steel-strong precision! ## Quick Answers - **What is this?** Steel D-Shaped Hole Drive Shaft for 1/18 TRX4M Defender Bronco by injora - **How much does it cost?** € 44.53 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/534301205-steel-d-shaped-hole-drive-shaft-for-1-18-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 - • **Built to Last:** Crafted from hardened steel to resist rust and wear, ensuring your RC crawler stays race-ready. - • **Precision Fit:** D-shaped and rounded rectangle holes deliver a rock-solid connection to transmission and axles—no slip, all grip. - • **Authentic Scale Detail:** Scale joint and spline diameters mimic real drive shafts for that pro-level, realistic upgrade. - • **Seamless Compatibility:** Perfectly engineered for TRX4M Bronco and Defender stock gears plus INJORA gears—upgrade without compromise. - • **Effortless Installation:** User-friendly design means quick, hassle-free fitting so you can get back to dominating the trail. ## Overview INJORA’s Drive Shaft Steel Black Front Rear Center Shaft set offers a durable, rust-resistant upgrade for TRX4M Defender and Bronco 1/18 RC crawlers. Featuring hardened steel construction, precision D-shaped holes for tight transmission fit, and scale-accurate joint sizing, these shafts deliver enhanced performance and realistic aesthetics. Ideal for serious hobbyists seeking reliable, long-lasting drivetrain components. ## Description Product Description Review: . - Another great product from injora. Review: Essential upgrade drive shaft for trx4m defender - This item is brilliant easy to fit and good quality for the money ## Features - Warning:Not suitable for children under 14 years. For use under adult supervision - Hardened 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. Not for TRX4M High Trail.However, due to different manufacturing processes, we can not guarantee drive shaft will or will not fit on other brand axle gears. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0C7GQ6MFL | | Best Sellers Rank | 25,710 in Automotive ( See Top 100 in Automotive ) 2 in Car Drive Shafts | | Brand | INJORA | | Country Of Origin | China | | Customer Reviews | 4.7 out of 5 stars 555 Reviews | | Manufacturer | INJORA | | Manufacturer Part Number | 4M-50BK | | Material | Steel | | Model Number | 4M-50BK | | Unit Count | 6.0 count | ## Images ![Steel D-Shaped Hole Drive Shaft for 1/18 TRX4M Defender Bronco - Image 1](https://m.media-amazon.com/images/I/51kDc2TWtBL.jpg) ![Steel D-Shaped Hole Drive Shaft for 1/18 TRX4M Defender Bronco - Image 2](https://m.media-amazon.com/images/I/61+4tFB2BlL.jpg) ![Steel D-Shaped Hole Drive Shaft for 1/18 TRX4M Defender Bronco - Image 3](https://m.media-amazon.com/images/I/513LjJcjbNL.jpg) ![Steel D-Shaped Hole Drive Shaft for 1/18 TRX4M Defender Bronco - Image 4](https://m.media-amazon.com/images/I/51mj6Py5gdL.jpg) ![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 ### ⭐⭐⭐⭐⭐ . *by G***. on 16 July 2025* Another great product from injora. ### ⭐⭐⭐⭐⭐ Essential upgrade drive shaft for trx4m defender *by T***M on 16 January 2026* This item is brilliant easy to fit and good quality for the money ### ⭐⭐⭐⭐⭐ Solid upgrade from Injora *by J***Y on 6 March 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. ## 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.hr/products/534301205-steel-d-shaped-hole-drive-shaft-for-1-18-trx4m](https://www.desertcart.hr/products/534301205-steel-d-shaped-hole-drive-shaft-for-1-18-trx4m) --- *Product available on Desertcart Croatia* *Store origin: HR* *Last updated: 2026-07-22*