Overview
The Fastrax Aluminium Motor Heatsink Fan Unit (Fan On Side) FAST36-4 is an essential cooling accessory for RC enthusiasts in the UK who demand maximum performance from their electric motor setups. Whether you're running a high-performance brushless RC car, buggy, or crawler, motor heat management is critical to maintaining consistent power delivery and extending the lifespan of your expensive motor components. This aluminium heatsink fan unit is designed to keep your motor running at optimal temperatures during extended bashing sessions, racing, or competitive events.
If you're serious about RC performance in the UK, you'll know that motor temperature directly affects power output, efficiency, and longevity. The Fastrax Aluminium Motor Heatsink Fan Unit provides active cooling through its integrated fan mechanism, ensuring your motor stays cool even during intense high-speed runs or demanding off-road RC driving. The fan-on-side configuration offers excellent clearance and airflow management, making it compatible with a wide range of RC models and chassis designs. This is the kind of upgrade that separates casual hobbyists from dedicated RC enthusiasts who understand that cooling is just as important as the motor itself.
Available from RC Model Shop, this Fastrax accessory represents quality engineering at an affordable price point, making it an excellent choice whether you're upgrading an existing ready-to-run RC car or building a competition-grade setup from scratch.
Key Features
- Aluminium Construction — The heatsink body is manufactured from high-quality aluminium, which offers superior thermal conductivity compared to plastic alternatives, allowing heat to dissipate rapidly away from your motor windings and keeping temperatures well within safe operating parameters.
- Integrated Fan Mechanism — The built-in fan provides active cooling rather than relying on passive heat dissipation alone, meaning your motor stays cooler even when ambient temperatures are high or during sustained full-throttle runs typical of RC racing and bashing in the UK.
- Fan-On-Side Configuration — Unlike top-mounted designs, this side-mounted fan placement offers superior compatibility with different RC chassis layouts and provides better airflow management around the motor bay, preventing heat pockets and ensuring consistent cooling performance.
- 3-Pin Futaba Plug Connection — The fan unit connects directly to your RC receiver or ESC using a standard 3-pin Futaba plug, ensuring compatibility with the vast majority of RC transmitters and control systems used in the UK RC hobby market today.
- Compact and Lightweight Design — The aluminium construction keeps weight to a minimum, meaning adding this cooling upgrade won't negatively impact your RC vehicle's acceleration, handling, or overall performance characteristics.
- Universal Compatibility — This heatsink fan unit is designed as a general accessory part suitable for a wide range of RC models, including crawlers, buggies, short-course trucks, and other electric RC vehicles that benefit from active motor cooling.
Technical Performance
The Fastrax Aluminium Motor Heatsink Fan Unit FAST36-4 is engineered with heat dissipation as its primary function. The aluminium heatsink body features excellent thermal properties that rapidly absorb and transfer heat away from your brushless or brushed motor, while the integrated fan actively pushes air across the cooling fins to enhance convective heat loss. This dual-approach cooling system ensures that even during extended RC racing sessions or high-performance bashing runs typical of UK RC enthusiasts, your motor temperature remains stable and well within safe operating limits. The 3-pin Futaba plug connection is a recognised standard in the RC hobby, providing reliable power delivery to the fan motor without requiring any soldering or complex wiring modifications. The fan-on-side design is particularly effective because it positions the cooling intake and exhaust away from the main motor housing, reducing the risk of hot air recirculation and ensuring fresh, cool air is continuously supplied across the heatsink fins. This makes it especially valuable for enclosed chassis designs or vehicles with limited motor bay ventilation, where passive cooling alone might prove insufficient during competitive racing or demanding off-road RC driving conditions.
What's in the Box
- Fastrax Aluminium Motor Heatsink Fan Unit with integrated fan
- 3-pin Futaba plug connector (factory-installed)
Frequently Asked Questions
- Will this heatsink fan unit fit my RC car? — The FAST36-4 is designed as a universal motor cooling accessory for electric RC models including crawlers, buggies, trucks, and other vehicles. However, motor bay dimensions vary between models, so we recommend checking your specific RC vehicle's manual or contacting our team at RC Model Shop to confirm compatibility before purchasing.
- Does this fan require a separate power source? — No, the Fastrax heatsink fan connects directly to your RC receiver or ESC via the 3-pin Futaba plug included with the unit. This means it draws power from your main battery system and operates automatically whenever power is supplied to your receiver, providing continuous cooling during all your RC driving sessions.
- What's the difference between fan-on-side and fan-on-top designs? — The fan-on-side configuration (FAST36-4) offers better compatibility with a wider range of chassis layouts and provides superior airflow management because the cooling intake and exhaust are positioned away from the main motor housing. This prevents hot air recirculation and is particularly effective in vehicles with limited motor bay ventilation. A fan-on-top design (like the FAST36-3) mounts directly above the motor, which suits certain applications where side clearance is limited.
- Is this suitable for high-performance brushless RC cars? — Absolutely. Modern brushless motors generate significant heat during high-speed running and racing, and active cooling with a heatsink fan unit like this FAST36-4 is highly recommended for anyone running competitive RC cars, trucks, or buggies in the UK. The aluminium heatsink and integrated fan combination effectively manages even the most demanding motor thermal loads.
- How do I install this fan unit? — Installation involves positioning the heatsink around your motor, ensuring proper fit within your vehicle's motor bay, and connecting the 3-pin Futaba plug to an available receiver or ESC port. No soldering is required. Detailed installation may vary by RC model, so we recommend consulting your vehicle's manual or contacting the RC Model Shop team for model-specific guidance.
- Will adding a heatsink fan affect my RC car's weight or balance? — The aluminium construction keeps the overall weight minimal, typically adding less than a few grams to your setup. The small weight increase is more than offset by the performance benefits of improved motor cooling, which allows your brushless motor to maintain peak efficiency throughout extended driving sessions.
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 Fastrax Aluminium Motor Heatsink Fan Unit (Fan On Side) FAST36-4 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.
- Brand: Fastrax
- Model Number: FAST36-4
- Product Type: Aluminium Motor Heatsink Fan Unit
- Fan Configuration: Fan On Side
- Connector Type: 3-pin Futaba plug
- Material: Aluminium heatsink body
- Cooling Method: Active fan cooling with integrated fan mechanism
- EAN Code: 5055323903052
- Category: Electric Power - Fans and Cooling
- Compatibility: Universal RC motor cooling accessory for electric RC vehicles
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.
