The Arrma ARA310989 centre diff set 46T 100K is a factory-assembled drivetrain upgrade designed for fast servicing and long-lasting durability in high-performance RC vehicles. Featuring a black composite diff case and pre-filled with 100K cSt silicone oil, this centre differential delivers smooth power transfer and consistent handling under extreme conditions. The inclusion of a 46T steel spur gear and metal cross shafts ensures robust performance, while integrated bearings allow for quick and efficient installation. Whether you're replacing worn components or upgrading for tougher terrain, the Arrma ARA310989 RC drivetrain centre differential offers a reliable solution engineered for serious RC enthusiasts.
Key features of the Arrma ARA310989 centre diff set 46T 100K
- Pre-filled with 100K silicone oil – supports smooth differential action and fast servicing
- 46T steel spur gear – enhances durability under high torque and extreme load conditions
- Composite diff case – lightweight yet strong for long-term performance
- Metal cross shafts and inserts – improve fitment efficiency and structural integrity
- Includes bearings – enables quick installation and consistent drivetrain alignment
The centre diff ARA310989 Arrma filled with 100k silicone oil and steel spur gear arrives pre-assembled and pre-filled, eliminating the need for manual setup and reducing maintenance time. The 100K cSt silicone oil provides optimal resistance for controlled differential action, especially during high-speed manoeuvres and aggressive acceleration. This feature is ideal for RC drivers who demand precision and responsiveness without the hassle of fluid preparation or tuning.
How does the 46T steel spur gear improve drivetrain durability?
The drivetrain diff ARA310989 Arrma composite case with metal cross shafts includes a 46T steel spur gear that significantly enhances the component’s ability to withstand extreme torque loads. Steel construction ensures that gear teeth maintain their shape and engagement over time, even under intense mechanical stress. This durability translates into smoother power delivery and reduced wear across the drivetrain, making the centre differential suitable for off-road racing, bashing, and high-speed track use.
Why is a composite diff case beneficial for RC performance?
The black composite housing of the Arrma ARA310989 pre-assembled centre diff unit offers a balance of strength and weight reduction. Composite materials resist cracking and deformation while keeping the overall weight of the drivetrain low, which contributes to improved acceleration and handling. The moulded structure also supports precise alignment of internal gears and shafts, ensuring consistent performance across varied terrain and driving conditions.
Is the Arrma ARA310989 RC drivetrain centre differential easy to install?
Yes. The RC centre diff ARA310989 Arrma includes bearings for fast fit and durability is designed for quick integration into compatible Arrma vehicles. The inclusion of bearings simplifies the installation process, allowing users to achieve proper alignment without additional tools or adjustments. This plug-and-play convenience is especially valuable for hobbyists who want to minimise downtime and maximise track time.
What makes the Arrma ARA310989 centre diff set 46T 100K an affordable upgrade?
For RC enthusiasts seeking a cost-effective drivetrain enhancement, the Arrma ARA310989 centre diff set 46T 100K delivers excellent value. Its combination of factory assembly, high-quality materials, and integrated components reduces the need for aftermarket parts or complex setup. The composite case and metal inserts offer long-term reliability, making this an affordable solution for drivers who want dependable performance without overspending.
In conclusion, the Arrma ARA310989 centre diff set 46T 100K is engineered for RC drivers who prioritise durability, ease of servicing, and drivetrain efficiency. With its black composite case, 46T steel spur gear, 100K silicone oil, and metal cross shafts, this centre differential supports high-performance driving across all conditions. The pre-assembled format and included bearings make installation fast and hassle-free. Buy ARA310989 Arrma centre diff set with 46T steel spur and 100k oil today and experience a drivetrain upgrade built for precision and endurance.
Brand, Model and Product Type
- Brand: Arrma
- Model: ARA310989
- Product Type: Arrma ARA310989 centre diff set 46T 100K, Arrma ARA310989 RC drivetrain centre differential, Arrma ARA310989 pre-assembled centre diff unit, Centre diff ARA310989 Arrma filled with 100k silicone oil and steel spur gear, Drivetrain diff ARA310989 Arrma composite case with metal cross shafts
- Product Colour: Black
Dimensions and Weight
- Diff case diameter: engineered to fit standard 29 cm centre differential compartments
- Spur gear size: 46T steel gear for high-load torque transfer
- Weight: optimised composite and steel construction for balanced drivetrain performance
Material and Build Quality
- Composite diff case provides lightweight strength and resistance to deformation
- Black finish enhances visual integration and protects against environmental wear
- Steel internal gears designed for long-lasting durability under extreme RC conditions
Gear and Fluid Configuration
- Pre-filled with 100k cSt silicone oil for controlled differential action and reduced servicing time
- 46T steel spur gear supports consistent power delivery and gear engagement
- Metal cross shafts and inserts improve internal fitment and structural integrity
Compatibility and Integration
- Compatible with Arrma vehicles requiring centre differential setups with 46T spur gears
- Designed for direct installation without modification or additional components
- Supports high-torque RC applications with reinforced gear and shaft architecture
Operational Features
- Factory assembled for fast and efficient servicing and reduced setup time
- Includes bearings for quick fitment and consistent drivetrain alignment
- Supports smooth differential behaviour across varied terrain and driving conditions
Packaging and Contents
- Includes: 1 x pre-assembled centre diff unit with 46T steel spur gear and 100k silicone oil
- Packaged with bearings and metal inserts for complete drivetrain integration
- Ideal for replacing worn centre differentials or upgrading for extreme load durability
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.
- Depending on what you choose at checkout, your order will usually be delivered either the next working day or within 2 working days. For next day delivery please place your order before 2:00pm. Orders are dispatched Monday to Friday only. Some items may take a little longer and if that is the case we will always show the expected delivery time on the product page.
- 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.
- We use trusted delivery partners to make sure your order gets to you safely and on time. We use DPD for next working day deliveries and Royal Mail for the 2 day option.
- As soon as your order is on its way we will send you a tracking number by email. If you provide your mobile number at checkout we will also send delivery updates straight to your phone so you can keep an eye on progress.
- If a product is marked as "Dispatched within 3 working days" delivery usually takes around 3 to 5 working days from when your order is placed.
- 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.
