- Motor type: Brushless 3680
- Weight: 4.05 Kg
- Length: 837 mm
- Width: 238 mm
The ARRMA AR310885 CNC Metal Crown Gear (37T) is a premium transmission upgrade designed for BLX 3S 4x4 models.
Why upgrade with the AR310885 crown gear?
This precision CNC-cut metal gear offers enhanced durability and smoother performance compared to stock plastic gears. Ideal for enthusiasts pushing their models hard, this gear withstands higher torque and reduces wear, extending the life of your drivetrain.
Compatible models
This part is specifically designed for AR310886 diff gear housings and fits a range of ARRMA vehicles including Big Rock, Granite, Kraton, Typhon, Senton, and Outcast in 3S and 4S BLX configurations.
Key features at a glance
- 37T CNC-machined metal crown gear—built for strength and precision
- Replaces plastic crown gear to reduce reliability issues
- Compatible with BLX 3S and 4S ARRMA models using part AR310886
- Drop-in upgrade for enhanced drivetrain robustness
Conclusion
If you're looking for a reliable upgrade to handle high-power setups and reduce ongoing maintenance, the ARRMA AR310885 CNC Metal Crown Gear (37T) offers a durable and precise solution. Ideal for demanding RC use—buy today and improve your performance and durability.
Brand, Model & Application
- Brand: ARRMA
- Part Number: AR310885 (ARAC3710 SKU)
- Part Type: CNC Metal Crown Gear (37 Teeth)
Compatibility
- Designed for BLX 3S and 4S transmissions (requires AR310886 diff housing)
- Compatible Models: Big Rock, Granite, Kraton, Typhon, Senton, Outcast
Quality & Materials
- Material: Precision-machined metal (CNC)
- Replaces standard plastic crown gear for increased wear resistance
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.
