This high-quality 43T Spiral Main Diff Gear is the perfect part to carry in your RC tool box.
Overview
The ARRMA Diff Gear Main 43T Spiral (Z-AR310497) is an essential replacement differential gear for serious RC enthusiasts and competitive drivers in the UK. Whether you're running an ARRMA MOJAVE 6S V2 BLX or upgrading your drivetrain, this precision-engineered component is the perfect part to carry in your RC tool box for emergency repairs or preventative maintenance on the track or at the bash site. Differential gears are critical components in any RC car, buggy or truck, responsible for transferring power smoothly from the motor to the wheels whilst allowing independent wheel rotation during cornering.
Built from super-tough steel, this 43-tooth spiral main diff gear has been manufactured to the exacting standards that ARRMA is recognised for across the RC hobby world. The spiral tooth design offers superior performance compared to straight-cut alternatives, delivering smoother power delivery and reduced noise during operation. This is a genuine ARRMA spare part, not an aftermarket alternative, ensuring perfect compatibility and reliability with your model.
For RC car enthusiasts in the UK who demand nothing but the best performance from their vehicles, investing in genuine OEM spare parts like this differential gear ensures your RC remains in peak condition. Whether you're a weekend basher enjoying outdoor RC adventures or a competitive racer pushing your machine to the limit, maintaining your drivetrain with quality components is essential for consistent performance and longevity.
Key Features
- Super-tough steel construction — Manufactured from premium-grade steel, this differential gear is engineered to withstand the extreme stresses and impacts of serious RC driving, delivering long-lasting durability and reduced wear even in the most demanding conditions.
- Precision-manufactured teeth — Every tooth on this 43T spiral gear has been precisely cut and finished to exacting tolerances, ensuring smooth and reliable power transfer from your motor to the drivetrain without slippage, vibration or grinding noise.
- Spiral tooth design — Unlike straight-cut differential gears, the spiral tooth configuration provides superior meshing characteristics, resulting in quieter operation, smoother acceleration and more efficient power delivery to your wheels.
- OEM ARRMA part — This is a genuine manufacturer spare part, not a third-party aftermarket clone, guaranteeing perfect fit and compatibility with all supported ARRMA models.
- Essential backup component — Every serious RC enthusiast should carry spare drivetrain parts like differential gears; this allows you to get back on the track quickly if damage occurs during intense driving sessions.
Technical Performance
The ARRMA Diff Gear Main 43T Spiral represents precision engineering at its finest for the RC hobby. At 43 teeth, this main differential gear is specifically designed for ARRMA's 6S brushless platform, delivering the optimal balance between acceleration and top speed for models like the MOJAVE 6S V2 BLX. The spiral tooth geometry is critical to performance; unlike conventional spur gears with straight teeth that can cause sudden mesh and backlash, spiral teeth engage progressively and smoothly, distributing load more evenly across multiple teeth simultaneously. This results in dramatically reduced noise, less mechanical stress on neighbouring components, and superior efficiency in power delivery. The super-tough steel material specification means this gear can handle continuous high-torque applications without stripping or wearing prematurely, even when running on high-performance brushless systems with significant motor output. The precision manufacturing tolerances ensure that each tooth is perfectly formed, allowing mesh with pinion gears without play or wobble. This is the exact component your ARRMA model came with from the factory, making it the ideal replacement when wear or damage occurs to your original differential gear.
What's in the Box
- 1 x ARRMA Diff Gear Main 43T Spiral
Frequently Asked Questions
- Is this differential gear compatible with my ARRMA RC model? — Yes, this Z-AR310497 main differential gear is specifically designed for ARRMA MOJAVE 6S V2 BLX models in both Red/Black and Green/Black colour variants. Check your model number against the compatibility list to confirm fit. If you're unsure, contact our team of experienced RC enthusiasts at RC Model Shop who can verify compatibility with your specific vehicle.
- What is a differential gear and why do I need one? — The differential gear is a critical component in your RC car's drivetrain that allows the front and rear wheels to rotate at different speeds when cornering, whilst still receiving driving power from the motor. Without a properly functioning differential with intact teeth, your RC will experience poor handling, increased tyre wear, and transmission noise. The 43-tooth configuration in this part is optimised for acceleration and speed control on the MOJAVE 6S V2.
- What's the difference between spiral and straight-cut differential gears? — Spiral-cut differential gears, like this one, have teeth angled at an angle to the axis of rotation. This design provides smoother engagement, quieter operation, and more efficient power transfer compared to straight-cut gears which have teeth parallel to the rotation axis. Spiral gears also experience less shock when teeth mesh, resulting in greater durability and longer service life.
- How often should I replace my differential gear? — Under normal RC driving conditions, a quality differential gear like this should last through many seasons of bashing or racing. However, you should inspect your differential regularly for signs of tooth wear or stripping, particularly if you notice noise from the drivetrain or inconsistent wheel rotation. Keep a spare in your RC tool box for emergencies.
- Is this suitable for both beginners and experienced RC drivers? — This is a replacement spare part rather than a complete ready-to-run RC car, so it's intended for anyone who already owns an ARRMA MOJAVE 6S V2 BLX and understands basic RC maintenance. If you're new to the hobby and need a complete RC car to get started, RC Model Shop can help you find the perfect ready-to-run option.
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 Diff Gear Main 43T Spiral Z-AR310497 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.
- 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.
