- Manufacturer: Losi
- Part Number: Z-LOSA99040
- EAN: 605482014073
- Type: Metal Servo Arm Insert
- Spline Profile: 23S
- Servo Compatibility: Airtronics
- Quantity Supplied: 2
- Vehicle Compatibility: Losi 8X, Losi 8XE
- Material: Metal
Overview
The LOS Metal Servo Arm Insert, 23S Spline, Airtronics (2) is an essential spare part for RC enthusiasts running Losi 8X and 8XE models. Whether you're a serious RC car UK competitor or a weekend basher, servo arms are crucial components that connect your servo motor to the steering and other control surfaces. This genuine Losi spare part ensures reliable performance and precision steering control, which is vital for both on-road racing and off-road bashing. As a dedicated RC hobbyist, having quality replacement servo arm inserts in your spares box is the mark of a well-prepared driver.
These metal servo arm inserts are engineered to withstand the demanding forces placed on steering systems during aggressive driving and racing. The 23S spline design ensures compatibility with specific Airtronics servo models, providing a secure connection that minimises play and maximises response time. For anyone running a ready to run RC vehicle or building a custom setup, quality servo components are non-negotiable. The two-pack quantity means you have a spare on hand, reducing downtime and keeping your RC car UK ready for action at a moment's notice.
Manufactured by Losi, a brand synonymous with precision engineering and reliability in the RC hobby, these metal servo arm inserts represent genuine OEM parts rather than aftermarket alternatives. This authenticity guarantees that the spline profile, dimensions, and material quality match the exacting standards your Losi 8X or 8XE requires for optimal performance and longevity.
Key Features
- Metal Construction — Unlike plastic alternatives, these servo arm inserts are crafted from metal, providing superior strength and durability to handle the repeated stresses of steering input and suspension articulation without cracking or stripping.
- 23S Spline Design — The 23S spline profile is specifically engineered for Airtronics servo compatibility, ensuring a precise fit that eliminates wobble and provides consistent steering response across all driving conditions.
- Airtronics Servo Compatibility — These inserts are designed to work seamlessly with Airtronics servo models commonly fitted to Losi 8X and 8XE platforms, guaranteeing proper fitment without modification.
- Two-Pack Quantity — Supplied as a set of two inserts, you have both a replacement for immediate installation and a spare for future use, minimising vehicle downtime.
- Genuine Losi OEM Part — As an official Losi spare part, this component meets the same quality standards as the original equipment, ensuring reliability and longevity.
- Essential Wear Item — Servo arm inserts experience constant wear during use; having quality replacements readily available is essential maintenance practice for serious RC car UK enthusiasts.
Technical Performance
The LOS Metal Servo Arm Insert, 23S Spline represents precision engineering designed specifically for the demanding requirements of Losi 8X and 8XE RC vehicles. The metal construction provides significantly greater strength than plastic alternatives, resisting deformation and failure even under extreme steering loads such as those encountered during high-speed cornering, aggressive bashing, or competitive racing. The 23S spline profile creates a secure mechanical connection with compatible Airtronics servos, minimising any rotational play that could compromise steering precision and response time. This is particularly important in ready to run RC vehicles where steering accuracy directly impacts lap times and overall vehicle control. The material composition ensures that these inserts can withstand repeated insertion and removal cycles without degradation, making them a cost-effective long-term solution for maintaining your RC hobby investment. Whether you're replacing worn components or building up spares inventory, these metal inserts deliver the reliability expected from genuine Losi parts.
What's in the Box
- LOS Metal Servo Arm Insert, 23S Spline — Pack of 2
Frequently Asked Questions
- Are these servo arm inserts compatible with my Losi 8X and 8XE? — Yes, these metal servo arm inserts are specifically designed for Losi 8X and 8XE models equipped with Airtronics servos featuring 23S spline compatibility. If your vehicle uses a different servo brand or spline profile, please verify compatibility before purchasing.
- Why should I choose metal servo arm inserts over plastic alternatives? — Metal inserts offer superior durability and strength, resisting the wear, stripping, and cracking that can occur with plastic components under heavy steering loads. For serious RC car UK drivers, the investment in metal spares provides better longevity and fewer unexpected failures during critical moments.
- How often do servo arm inserts need replacement? — Servo arm inserts are wear items that degrade over time depending on driving intensity and conditions. High-performance drivers may need replacements every season or more frequently, whilst casual users may find they last much longer. Having spares on hand is always recommended.
- Will these work with aftermarket servos? — These inserts are specifically designed for the 23S spline profile used by Airtronics servos. If your servo uses a different spline type, these inserts will not be compatible. Always verify your servo's spline specification before ordering.
- Is this suitable for beginners? — Servo arm insert replacement is an intermediate-level maintenance task requiring basic mechanical knowledge and proper tools. Beginners should either seek assistance from experienced RC enthusiasts or consult their vehicle's manual for installation guidance.
- How many inserts do I need? — Most RC vehicles require one servo arm insert per control servo, typically one for steering. This two-pack provides a replacement and a spare, which is ideal for maintaining consistent spares inventory.
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 LOS Metal Servo Arm Insert, 23S Spline, Airtronics (2): 8X, 8XE Z-LOSA99040 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.
