Traxxas Caster blocks, 6061-T6 aluminium (Red-anodised) (left & right) TRX9733-RED

Overview

The Traxxas Caster blocks, 6061-T6 aluminium (Red-anodised) (left & right) TRX9733-RED are premium upgrade components designed to enhance the performance and durability of your RC trail truck. These heavy-duty caster blocks are machined from tough 6061-T6 aluminium to increase steering precision and durability while preserving your TRX-4M's trail-tuned steering and suspension geometry. The brilliant red anodised finish adds high-tech style to your off-road machine, making these blocks as visually striking as they are functionally superior. Whether you're a seasoned RC enthusiast looking to upgrade your crawler or a weekend basher seeking improved handling on technical terrain, these aluminium caster blocks represent a significant step up from stock plastic components.

Compatible with the entire TRX-4M range of 1/18 scale trail trucks, including the Ford Bronco, Land Rover Defender, Chevrolet K10, and Ford F-150 High Trail variants, these caster blocks are an essential upgrade for anyone serious about RC trail driving in the UK. The transition from plastic to aluminium suspension components is one of the most impactful upgrades you can make to an RC car UK platform, offering measurable improvements in steering response, durability under stress, and overall vehicle longevity. These blocks work in conjunction with Traxxas's engineering expertise to maintain precise suspension geometry, ensuring your TRX-4M performs exactly as intended while handling the demands of rocky, technical terrain.

Installation is straightforward for anyone with basic RC maintenance knowledge. The new kingpins included with the aluminium caster blocks ensure perfect compatibility and optimal performance. This is the ideal time to consider a complete front-end durability upgrade, potentially combining these blocks with other aluminium components to create a chassis that will withstand years of aggressive trail driving.

Key Features

• 6061-T6 Aluminium Construction — These caster blocks are machined from aircraft-grade 6061-T6 aluminium, which is significantly stronger and more durable than plastic alternatives, providing superior resistance to impacts, stress, and the rigours of off-road driving while maintaining relatively lightweight characteristics essential for RC performance.
• Red Anodised Finish — The vibrant red anodised coating not only delivers eye-catching aesthetics that complement your RC trail truck's styling, but also provides a protective layer against corrosion, moisture, and UV damage, ensuring the blocks maintain their appearance and functionality through countless hours of use in varying UK weather conditions.
• Improved Steering Precision — By upgrading to aluminium caster blocks, you'll experience noticeably enhanced steering response and precision, as the rigid aluminium construction eliminates the flex and play inherent in plastic components, allowing for more direct and predictable vehicle control on technical terrain.
• Enhanced Durability — The inherent strength of 6061-T6 aluminium means these blocks can withstand impacts, drops, and stress that would crack or break plastic alternatives, significantly extending the lifespan of your suspension components and reducing maintenance downtime.
• Suspension Geometry Preservation — Traxxas has engineered these aluminium blocks to maintain your TRX-4M's factory trail-tuned steering and suspension geometry, meaning you'll gain durability and precision without sacrificing the carefully calibrated handling characteristics that make the TRX-4M such a capable crawler.
• Included Kingpins — Each set comes with new kingpins specifically designed for compatibility with the aluminium blocks, ensuring perfect fitment and eliminating the need to source additional hardware or risk using incompatible components that could compromise performance.
• Left and Right Set — This package includes both the left and right caster blocks, providing a complete suspension upgrade for the front end of your TRX-4M and ensuring balanced, symmetrical handling characteristics across both sides of the vehicle.
• Wide Model Compatibility — These blocks are compatible with the entire TRX-4M lineup, including the Ford Bronco 1/18 RTR 4x4 Trail Truck, Land Rover Defender 1/18 RTR 4x4 Trail Truck, Chevrolet K10 High Trail Truck, Ford F-150 High Trail Truck, and the TRX-4MT Monster Truck variants, making them a versatile upgrade option for TRX-4M owners across the UK.

Technical Performance

The engineering behind these caster blocks reflects Traxxas's commitment to quality and performance. Machined from genuine 6061-T6 aluminium—the same material used in aerospace and high-performance automotive applications—these blocks offer a quantum leap in rigidity compared to plastic alternatives. The 6061-T6 alloy is specifically chosen for its excellent machinability, corrosion resistance, and strength-to-weight ratio, making it ideal for RC applications where every gram counts but durability is non-negotiable. The anodising process applied to create the red finish serves dual purposes: it creates an attractive appearance while simultaneously providing a hard, protective oxide layer that guards against corrosion, oxidation, and the wear that naturally occurs through regular use. For RC enthusiasts in the UK pushing their trail trucks through demanding terrain, from rocky moorland to muddy woodland tracks, this protective coating ensures your investment maintains its appearance and functionality for years to come. The blocks are precision-machined to exacting tolerances, ensuring perfect fitment with your TRX-4M's front suspension architecture. Installation involves removing the original plastic blocks and replacing them with the aluminium versions using the included kingpins—a process that takes approximately 30-45 minutes for someone with basic RC mechanical knowledge. The finished result is a noticeably stiffer, more responsive front end that provides superior feedback through the steering servo and dramatically improved control on technical terrain.

What's in the Box

• Left caster block (red anodised 6061-T6 aluminium)
• Right caster block (red anodised 6061-T6 aluminium)
• New kingpins for installation

Frequently Asked Questions

• Will these aluminium caster blocks fit my TRX-4M trail truck? — Yes, these blocks are specifically designed for and compatible with all TRX-4M variants, including the Ford Bronco, Land Rover Defender, Chevrolet K10, Ford F-150 High Trail models, and the TRX-4MT Monster Truck. They are engineered to maintain the factory suspension and steering geometry while providing upgraded durability and precision.
• What is the advantage of upgrading from plastic to aluminium caster blocks? — Aluminium blocks offer significantly improved durability, enhanced steering precision due to reduced flex, superior impact resistance, and better corrosion protection through anodising. They eliminate the play and deflection found in plastic components, resulting in more direct vehicle control and improved performance on technical terrain.
• Are these blocks difficult to install? — No, installation is straightforward for anyone with basic RC maintenance skills. You simply disassemble your current front suspension, remove the plastic blocks, and install the aluminium replacements using the included new kingpins. The process typically takes 30-45 minutes and requires only standard RC tools.
• Why is the 6061-T6 aluminium specification important? — 6061-T6 is an aerospace-grade aluminium alloy chosen specifically for its exceptional strength-to-weight ratio, excellent machinability, and superior corrosion resistance. This specification ensures your blocks will withstand years of aggressive off-road use while remaining as lightweight as possible, maintaining your TRX-4M's performance characteristics.
• What does the red anodised finish do? — The anodised finish is both functional and aesthetic. It creates a vibrant red appearance that enhances your truck's visual appeal while providing a protective oxide layer that guards against corrosion, oxidation, moisture damage, and UV exposure—essential protection for RC vehicles used in varying UK weather conditions.
• Can I mix and match different coloured blocks? — While these blocks are red anodised, Traxxas offers aluminium caster blocks in multiple colour options including blue, orange, green, and pink. You could theoretically mix colours, but for a cohesive appearance, most RC enthusiasts prefer to match the colour across both sides of the vehicle.
• What tools do I need to install these blocks? — You'll need basic RC tools including hex drivers, possibly a small screwdriver, and potentially a vice or RC stand to safely support your vehicle during the swap. A socket set may be useful but is not essential. Traxxas provides exploded view diagrams for your specific TRX-4M model to guide the installation process.
• Are these blocks suitable for beginners? — While the blocks themselves are premium components suitable for all skill levels, the installation requires some mechanical confidence and basic tools. A beginner could certainly install them following Traxxas's detailed guides, but might benefit from watching installation videos or having experienced help the first time.

Why Buy from RC Model Shop?

RC Model Shop is a trusted UK RC retailer and authorised dealer for all the brands we stock, including Traxxas, ARRMA, Losi, FTX, Hobbywing, Spektrum and more. Based in Walsall, we have a physical store where customers are welcome to come in, view products and purchase in store. Whether you are a seasoned competitor, a weekend basher, or just discovering the world of RC for the first time, our team of experienced RC enthusiasts is here to help you find the perfect setup and provide ongoing support. Order the Traxxas Caster blocks, 6061-T6 aluminium (Red-anodised) (left & right) TRX9733-RED today with confidence, knowing you are buying from an authorised retailer with genuine products, expert knowledge and a commitment to customer satisfaction. Shop online or visit us in Walsall — we look forward to helping you get the most out of your RC experience.