Arrma Kraton 4S Bearing Kit RC Car Replacement Bearings KRATON4SBEARINGKIT

Overview

The ARRMA Kraton 4S Bearing Kit is an essential maintenance and upgrade component designed for owners of the ARRMA Kraton 4S 4X4 brushless speed truck and compatible 4S BLX V2 models. Whether you're a seasoned RC enthusiast running a high-performance brushless 4WD monster truck or a weekend basher pushing your ready-to-run RC vehicle to its limits, keeping your bearings in pristine condition is crucial for maintaining optimal performance and longevity. This precision-engineered bearing kit provides everything you need to service the centre differential of your Kraton 4S, ensuring smooth operation and extended component lifespan.

Bearing maintenance is one of the most important aspects of RC car ownership. Over time, bearings accumulate dirt, dust, and moisture that can cause friction, wear, and eventual failure. The ARRMA Kraton 4S Bearing Kit allows you to perform straightforward maintenance that keeps your brushless RC truck running at peak efficiency. Whether you're maintaining a stock vehicle or optimising performance for racing, this kit provides the genuine ARRMA components you need to do the job properly. Available in the UK from RC Model Shop, this is the ideal choice for anyone serious about RC car maintenance.

Built with precision manufacturing standards, these components ensure easy fitting and allow for straightforward servicing of the centre differential without complications. If you own a Kraton 4S, Outcast 4S, or Mojave 4S, keeping a bearing kit on hand is an investment in reliability and performance. This is genuine ARRMA equipment trusted by RC enthusiasts across the UK.

Key Features

• Precision Manufactured Components — Every bearing and washer in this kit is precision-engineered to exact ARRMA specifications, ensuring they fit perfectly and function seamlessly within your centre differential without binding or excessive play.
• Centre Differential Servicing — This kit is specifically designed to facilitate easy servicing and maintenance of your vehicle's centre differential, which is critical for proper handling and power distribution across the 4X4 drivetrain.
• Complete Kit Contents — Rather than hunting for individual components, this kit includes everything needed for a full centre differential rebuild, including rubber-shielded ball bearings, O-rings, washers, and gaskets.
• Rubber-Shielded Bearings — The included 15x21x4mm rubber-shielded ball bearings provide superior protection against dirt, dust, and moisture ingress, which helps maintain smooth operation and reduces premature wear.
• Genuine ARRMA Quality — As an official ARRMA component, this bearing kit meets the manufacturer's exacting standards and is the recommended choice for proper maintenance of your brushless RC truck.
• Easy Installation — With precision-manufactured components and clear fitment information, servicing your centre differential is straightforward and doesn't require specialist tools or expertise.

Technical Performance

The ARRMA Kraton 4S Bearing Kit is engineered specifically for the Kraton 4S 4X4 and compatible 4S BLX V2 models including the Outcast 4S and Mojave 4S variants. The centre differential is a critical component in 4WD brushless RC vehicles, responsible for distributing power between front and rear axles and allowing for smooth cornering. Over time, the bearings in this assembly can accumulate dirt and wear, reducing efficiency and affecting handling characteristics. This kit contains precision ball bearings rated for high-speed applications, ensuring they can handle the demanding conditions of brushless RC truck operation. The rubber-shielded construction of the larger bearings (15x21x4mm) provides a seal against contaminants whilst maintaining smooth rolling characteristics. The inclusion of O-rings and gaskets ensures proper sealing when reassembled, preventing moisture and dirt ingress during subsequent use. Quality bearing maintenance is essential for maintaining the performance envelope of your brushless RC vehicle, particularly if you're running your Kraton 4S at speed or in challenging terrain.

What's in the Box

• 2 x 9.8mm x 2.2mm O-Ring
• 1 x 5x8x2.5mm Ball Bearing
• 2 x 10.2x15x0.5mm Washer
• 1 x Centre Diff Gasket
• 2 x 15x21x4mm Rubber Shielded Ball Bearings

Compatibility

• ARRMA Kraton 4S 4X4 RTR Brushless Speed Truck (ARA4408V2)
• ARRMA Outcast 4S 4X4 RTR Brushless Stunt Truck (ARA4410V2)
• ARRMA Mojave 4S 4X4 RTR Brushless Desert Truck (ARA4404)
• Kraton 4S BLX V2 variants
• Other compatible 4S BLX V2 models equipped with centre differential

Frequently Asked Questions

• How often should I replace the bearings in my Kraton 4S? — Bearing replacement frequency depends on your usage patterns. If you run your brushless RC truck regularly in dusty or wet conditions, you may want to service bearings every few months. For casual use, annual maintenance is typically sufficient. Signs that bearings need attention include rough rolling, unusual noises, or handling changes.
• Is this bearing kit suitable for beginners? — Yes, this kit is appropriate for anyone comfortable performing basic RC vehicle maintenance. The components are precision-manufactured for easy fit, and servicing a centre differential is a straightforward task with basic mechanical skills and a few standard tools. Many RC enthusiasts view bearing maintenance as an essential skill that extends vehicle lifespan significantly.
• What is the difference between this kit and aftermarket alternatives? — This is the genuine ARRMA centre diff rebuild kit, manufactured to exact specifications for your Kraton 4S. It includes the correct bearing sizes, rubber-shielded protection, and proper sealing components. Aftermarket kits may use different bearing grades or specifications; this official kit guarantees perfect fitment and performance.
• Can I use this kit on other ARRMA vehicles? — This bearing kit is specifically designed for the centre differential of the Kraton 4S, Outcast 4S, and Mojave 4S models. Different ARRMA vehicles may have different bearing specifications. Always check your vehicle manual to confirm compatibility before ordering.
• Do I need any special tools to install this kit? — Basic RC maintenance tools are typically sufficient, including small hex keys, snap ring tools, and perhaps a bearing press or puller depending on your current bearing condition. Detailed instructions and diagrams are available in your ARRMA manual.
• Will new bearings improve my Kraton 4S performance? — If your current bearings are worn or contaminated, fresh bearings will restore smooth operation and improve handling characteristics. You may notice quicker acceleration response and smoother cornering once the centre differential operates with precision-fresh components.

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 Arrma - Kraton 4s bearing kit kraton4sbearingkit 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.