Overview
The BLH Main Motor (Z-BLH4103) is an essential replacement and upgrade component for the Blade 120 S micro helicopter. As a genuine Blade spare part, this main motor is engineered to deliver reliable performance for pilots who demand precision and durability from their RC helicopter. Whether you're an experienced micro heli enthusiast looking to maintain your Blade 120 S in peak condition, or someone seeking replacement parts after a bump or two during flight practice, this main motor represents the perfect solution for keeping your micro RC helicopter in the air.
The Blade 120 S is one of the most popular micro helicopters in the UK RC hobby market, and maintaining it with genuine OEM parts ensures optimal performance and longevity. This main motor is a critical component that drives the main rotor system, making it one of the most important elements to keep in good working order. If you're experiencing performance issues, reduced power delivery, or simply need to refresh your helicopter after extended use, this genuine Blade replacement motor will restore your 120 S to factory specifications and performance standards.
RC Model Shop stocks an extensive range of Blade 120 S spares and accessories to keep your micro heli flying. From main blades, shafts and gears to tail booms and motors, landing skids, canopies, linkages, bearings and screws, we pride ourselves on offering the service parts and upgrades that RC pilots reach for most after regular flight sessions. Our comprehensive Blade 120 S inventory means less downtime and more airtime for your micro helicopter.
Key Features
- Genuine OEM Blade Component — This is an authentic Blade replacement motor designed and manufactured to exact specifications for the 120 S helicopter platform, ensuring perfect compatibility and reliable performance with no fitment issues or compromises.
- Direct Replacement Part — The Z-BLH4103 is a straightforward replacement for the original main motor, making installation quick and straightforward for pilots who have basic mechanical knowledge and the right tools.
- Restores Peak Performance — If your helicopter has suffered damage or wear to the main motor, this genuine replacement will restore full power delivery and smooth operation to your Blade 120 S, bringing it back to factory specifications.
- Essential Spare for Active Pilots — Whether you fly regularly or push your micro heli through challenging manoeuvres, keeping a replacement motor on hand ensures you're never grounded for long when maintenance is needed.
- Part of the Comprehensive 120 S Parts Ecosystem — This motor integrates seamlessly with all other Blade 120 S components and spares, allowing you to maintain or upgrade your helicopter with complete confidence in compatibility.
Technical Performance
The BLH Main Motor is engineered specifically for the Blade 120 S micro helicopter platform, where precision and reliability are paramount. As a main rotor motor, this component is responsible for generating the lift and control inputs that make the helicopter responsive and stable in flight. Blade engineers have designed this motor to provide consistent power delivery across the full operating range of the 120 S, from gentle hovering and basic manoeuvres through to more aggressive flight patterns and advanced techniques. The motor's construction utilises materials and winding specifications that deliver the optimal balance of power, efficiency and longevity for micro-scale helicopter flight. Whether you're flying indoors in confined spaces or outdoors in light wind conditions, this motor will perform reliably across the 120 S's entire flight envelope. The genuine OEM construction means you get the exact same motor specifications that Blade engineers designed the helicopter around, ensuring no performance compromises or compatibility issues when you need it most.
What's in the Box
- BLH Main Motor: 120 S (Z-BLH4103)
What You Need to Complete
- Blade 120 S helicopter airframe or helicopter requiring main motor replacement
- Basic hand tools for motor installation and removal
- Potential need for replacement bearings or shafts depending on damage assessment
Frequently Asked Questions
- Is the BLH Main Motor Z-BLH4103 compatible with my Blade 120 S helicopter? — Yes, this is a genuine OEM Blade replacement motor manufactured specifically for the Blade 120 S platform. It is a direct replacement part and will install without any fitment issues or compatibility concerns. If you own a Blade 120 S, this motor will be a perfect match for your helicopter.
- When should I replace the main motor on my Blade 120 S? — You should consider replacing the main motor if you notice reduced power delivery, unusual vibration or noise during flight, visible damage to the motor housing, or if the helicopter has suffered a significant crash or impact that may have damaged the motor internally. Keeping a replacement motor on hand means you can quickly swap it out and continue flying while you assess other potential damage.
- What tools do I need to install this replacement motor? — Basic RC hobby hand tools will be required to remove and install the main motor, typically including small screwdrivers, spanners and potentially tweezers or small pliers for linkage work. Refer to the Blade 120 S manual or exploded diagram for detailed installation instructions, which RC Model Shop can provide.
- Is this a brushless or brushed motor? — The source material does not specify whether this is a brushless or brushed motor design. However, it is engineered for the Blade 120 S micro helicopter platform and represents a genuine OEM replacement component from Blade.
- Can I upgrade to a different motor for higher performance? — For the best results and to maintain warranty coverage, we recommend using genuine Blade replacement components. The 120 S was engineered around this specific motor's performance characteristics, so alternative motors may create compatibility or performance issues. Contact RC Model Shop for advice on your specific requirements.
- How long will a replacement motor last? — The lifespan of the motor depends on flight frequency, flying conditions and maintenance practices. With regular care and proper storage, a genuine Blade motor should provide extended service life. Keeping your helicopter well-maintained and addressing any damage promptly will maximise motor longevity.
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 BLH Main Motor: 120 S Z-BLH4103 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.
