Futaba Plastic Servo Horn 5FA Long Arm Cross Mini Servo Pack of 6 FUTEBS3447

Overview

The Futaba Plastic Servo Horn 5FA is an essential replacement part for RC enthusiasts working with mini servos. This long arm cross servo horn is supplied as a pack of 6 pieces, making it an economical choice for hobbyists who need reliable servo control across multiple RC models. Whether you're building a new RC car in the UK, maintaining existing equipment, or upgrading your fleet of RC vehicles, these plastic servo horns provide the connection point between your servo motor and the mechanical linkages that control steering, throttle, and other critical functions on your model.

Futaba is a globally recognised manufacturer of RC control systems, radios, and servo components, trusted by professional racers and weekend bashers alike. The 5FA servo horn is engineered to work seamlessly with Futaba's mini servo range, ensuring precise control and reliable operation in competitive and recreational RC racing environments. The plastic construction keeps costs down whilst maintaining durability for typical RC applications, making these horns ideal for replacement kits, spare parts stockpiling, or multi-model setups where you want consistent servo performance across the board.

As a dedicated RC hobby retailer in the UK, RC Model Shop stocks genuine Futaba spares and replacement parts because we understand that quality servo components are critical to RC performance. A worn or damaged servo horn can compromise steering response, cause binding, or create dead spots in your control inputs. Having a pack of six replacement horns on hand means you're never stranded at the track or field waiting for parts to arrive. These horns suit mini servo applications commonly found in 1/10-scale RC cars, buggies, and other compact RC models where space and weight are considerations.

Key Features

• Long Arm Cross Design — The cross-shaped arm configuration provides four connection points, offering flexibility in servo linkage setup and allowing you to optimise throw distance and control sensitivity to match your specific RC application and driving style.
• Mini Servo Compatibility — Designed specifically for mini servo splines, these horns are the correct size and fitment for Futaba mini servo ranges, ensuring smooth operation without slop or wobbling in the control mechanism.
• Pack of Six Horns — With six horns supplied in each package, you have enough spares to equip multiple servos or keep backup horns ready for the track, reducing downtime and ensuring you can quickly swap out damaged components without waiting for restock.
• Plastic Construction — The plastic material keeps weight to a minimum and costs competitive, whilst remaining durable enough for normal RC use; plastic horns are also less likely to strip servo splines compared to excessive force on metal alternatives in crash scenarios.
• Futaba Genuine Part — As an authentic Futaba component, these horns are manufactured to OEM specifications, guaranteeing correct fitment and reliable performance with Futaba servo systems, eliminating compatibility concerns.
• Easy Installation — Servo horns are simple to install; just slide onto the servo spline and secure with the appropriate retaining screw, making replacement quick and accessible even for less experienced RC modellers.

Technical Performance

The Futaba Plastic Servo Horn 5FA represents a straightforward but essential component in RC servo control systems. The long arm cross configuration is a classic design that maximises the moment arm for control inputs, allowing you to achieve smooth, responsive steering without requiring excessive servo travel. The plastic construction, whilst lighter than alloy alternatives, is engineered to withstand the forces typical in 1/10-scale RC cars and comparable mini servo applications. The spline fitment is precision-moulded to ensure zero slop when installed on compatible Futaba mini servos, which is critical for maintaining control precision during competitive racing or casual bashing. The pack format of six horns provides excellent value for the RC modeller who wants to maintain inventory of common replacement parts. Each horn can be configured in different orientations depending on your linkage geometry, allowing the same part to serve multiple mounting requirements across different models. The plastic material also provides a safety feature in extreme crash scenarios, as it will fail before stripping the servo spline, protecting the more expensive servo motor itself.

What's in the Box

• 6x Futaba Plastic Servo Horn 5FA (Long Arm Cross for Mini Servos)

Frequently Asked Questions

• What servo models are compatible with the Futaba Plastic Servo Horn 5FA? — These horns are designed for Futaba mini servo ranges. Check your servo documentation for the spline type; the 5FA is a long arm cross horn suitable for mini servo splines. If you're unsure of your servo model, the RC Model Shop team can help verify compatibility — contact us on 01543 577278 or WhatsApp for advice.
• Why would I need replacement servo horns? — Servo horns wear out through normal use, can be damaged in crashes, or may break if a linkage becomes seized. Having spare horns on hand means you can return to the track or field immediately without waiting for replacement parts. A pack of six horns is economical insurance against downtime.
• Can I use plastic servo horns instead of alloy ones? — Yes, and there are advantages to plastic horns. They are lighter, which reduces load on your servo, and they will fail safely in a hard crash, protecting your expensive servo motor by sacrificing the horn rather than stripping the servo spline. Plastic horns are ideal for recreational RC use and are the standard OEM choice for many Futaba mini servos.
• How do I install a servo horn? — Slide the horn onto the servo spline, align it in the desired orientation, then secure it with the servo horn retaining screw (typically provided with the servo). Ensure the screw is tight but do not over-tighten, as this can crack the plastic. Installation takes seconds and requires no special tools.
• What is the difference between a long arm and short arm servo horn? — The arm length affects the mechanical advantage and throw distance. A long arm horn provides greater servo travel distance for a given servo rotation angle, which can improve control resolution; however, it requires more servo torque. A short arm horn moves less distance but requires less servo effort. Choose based on your specific linkage geometry and servo torque availability.
• Are these horns suitable for 1/10-scale RC cars? — Yes, the 5FA long arm cross horns are ideal for 1/10-scale RC cars that use Futaba mini servos, which are standard in many compact and entry-level RC vehicles across the UK hobby.

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 Futaba Plastic Servo Horn 5FA (Long Arm Cross for Mini Servos - 6pcs) FUTEBS3447 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.