Overview
The ARRMA Assembled Center Differential 65T 0.5 MOD is a genuine replacement transmission component designed specifically for the 1/16 MINI KRATON 3S, one of the most popular RC monster trucks in the UK hobby market. This factory-assembled differential arrives ready to install, eliminating the need for time-consuming setup and calibration. Whether you're a seasoned RC enthusiast maintaining your fleet or a dedicated basher looking to upgrade your transmission system, this centre differential delivers the performance and reliability that ARRMA is renowned for.
Centre differentials are critical components in any 4WD RC car UK setup, as they manage power distribution between the front and rear axles during cornering and aggressive driving. The ARRMA Assembled Center Differential is engineered to handle the demands of weekend bashing, backyard stunts, and competitive racing alike. By choosing a factory-assembled unit pre-filled with silicone oil, you eliminate potential assembly errors and ensure consistent performance from day one. This is the ideal solution if your existing differential needs replacement or if you want to optimise your mini monster truck's handling characteristics.
ARRMA's reputation for quality brushless RC vehicles extends to their spare parts catalogue, and this centre differential exemplifies that commitment. Built to withstand extreme loads and rigorous use, it represents the perfect blend of durability, ease of installation, and performance enhancement for your MINI KRATON 3S.
Key Features
- Factory-Assembled Ready-to-Install Design — This differential arrives completely assembled and pre-filled with silicone oil, eliminating the need for complex setup procedures and allowing you to get back on the track or field in minutes rather than hours.
- 65T 0.5 Mod Metal Spur Gear — The precision-engineered 65-tooth spur gear with 0.5 module specification delivers increased durability under extreme loads, making it ideal for high-performance bashers and racers who demand reliability in their RC monster truck.
- 500,000 cSt Silicone Oil Pre-Fill — Factory-filled with premium silicone oil at 500,000 centistokes viscosity, the differential is optimised for fast and efficient performance while maintaining precise power distribution across all driving conditions.
- Tough Internal Gears for Extended Durability — The internally mounted gears are engineered from durable materials to withstand the impacts, jumps, and aggressive cornering that define 4WD RC car UK bashers and competition vehicles.
- Integrated Bearing System — Pre-installed bearings ensure smooth operation and fast, efficient fitment to your vehicle without requiring additional components or adjustment steps.
- Genuine ARRMA Component — As an official ARRMA part, this differential is manufactured to the same exacting standards as the vehicles themselves, guaranteeing compatibility and long-term reliability.
Technical Performance
The ARRMA Assembled Center Differential 65T 0.5 MOD represents the pinnacle of transmission engineering for compact 1/16-scale brushless RC models. The 65-tooth gear ratio, combined with 0.5 module specification, creates the perfect balance between durability and performance for vehicles in the mini monster truck category. The use of metal internal gearing rather than plastic ensures that even the most aggressive driving styles won't result in stripped teeth or premature wear, a common issue with lower-quality differentials. The 500,000 cSt silicone oil provides optimal viscosity for smooth differential action during high-speed cornering whilst maintaining the mechanical advantage needed for 4WD traction management. This viscosity rating is particularly important for UK RC enthusiasts who bash year-round in variable weather conditions; the oil remains stable across temperature ranges, preventing the differential from becoming too loose or too tight. The integrated bearing system eliminates play and backlash, critical factors in maintaining precise handling characteristics. Whether you're running your MINI KRATON 3S on carpet tracks, outdoor grass surfaces, or urban concrete terrains, this centre differential will maintain consistent performance throughout extended driving sessions. The factory-assembled construction means every component has been professionally calibrated and tested before shipping, eliminating the variables that often arise from user assembly.
What's in the Box
- 1x Assembled Center Differential (65T 0.5 MOD, pre-filled with 500,000 cSt silicone oil)
Frequently Asked Questions
- Is the ARRMA Assembled Center Differential compatible with my MINI KRATON 3S? — Yes, this centre differential is specifically designed for the ARRMA 1/16 MINI KRATON 3S and fits all variants including the battery and charger included models. Always verify your exact model number before purchasing to ensure compatibility.
- Do I need to refill the silicone oil in this differential? — The differential arrives factory-filled with 500,000 cSt silicone oil, ready for immediate use. Over time and with extensive use, oil levels may diminish, but the pre-fill means you can install and drive immediately without additional preparation.
- What is the difference between 63T and 65T differentials for RC cars? — The 65T version featured here provides slightly different gear ratios and performance characteristics compared to other tooth-count options. The higher tooth count affects power distribution and handling balance; the 65T is optimised for the specifications of this particular KRATON 3S variant.
- Can I use this differential as a maintenance replacement? — Absolutely. If your existing centre differential shows signs of wear, grinding noises, or uneven power distribution between front and rear axles, this assembled unit is a direct replacement requiring only basic installation skills.
- Is this suitable for beginners? — This is a replacement component rather than a complete vehicle, so basic mechanical knowledge is required for installation. However, the factory-assembled design eliminates the complexity that would be involved in building a differential from scratch, making it accessible to intermediate RC car UK enthusiasts.
- What type of driving conditions is this differential rated for? — The tough internal gears and 500,000 cSt oil specification make this differential suitable for all conditions: track racing, outdoor bashing, freestyle jumping, and even water crossings typical of RC hobby use in the United Kingdom.
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 Assembled Center Differential 65T 0.5 MOD, TBC cSt: MINI Z-ARA-2985 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.
We want to make sure your delivery goes smoothly, so here are some important details about our service:
- For orders above £120, we offer delivery to most mainland UK addresses. For orders under £120, we can still deliver to Northern Ireland and the outlying isles, as long as the item can be sent by Royal Mail, weighs less than 30kg, and fits within 61cm × 46cm × 46cm. Some highland and remote areas may carry an extra delivery charge as couriers often apply surcharges in these locations. If you live in one of these areas, feel free to contact us before ordering so we can confirm the delivery options and costs for you.
- Most of our products include delivery in the price. If your order is under £90, a small delivery fee will apply but do not worry this will always be clearly shown at checkout before you complete your purchase.
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- If your order includes items with different dispatch times we will normally wait and send everything together once all items are in stock. If one of the items is going to take a while we will give you the choice either wait for everything to arrive or let us send the available items now and deliver the rest later. It is up to you.
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- For customers in Inverness and other parts of the Scottish Highlands deliveries can take up to 2 working days even if you select next day delivery as couriers do not currently offer a guaranteed next day service to those areas.
