LOS Rear Gearbox Bearing Inserts, Aluminum 8B/8T 2.0 Z-LOSA4454

Overview

The LOS Rear Gearbox Bearing Inserts, Aluminium 8B/8T 2.0 (Z-LOSA4454) are precision-engineered replacement components designed specifically for Losi 8B and 8T 2.0 RC buggy models. These bearing inserts represent essential maintenance and upgrade parts for RC enthusiasts in the UK who demand reliability and durability from their vehicles. Whether you're a competitive racer, weekend basher, or serious hobbyist, these gearbox inserts ensure your Losi RC buggy maintains optimal performance and drivetrain integrity through countless runs and races.

Manufactured by Losi, a recognised leader in RC vehicle engineering, these bearing inserts are crafted from high-durability aluminium that allows them to be used for the life of your vehicle without degradation. The inserts feature hard anodized coating to improve durability and provide excellent resistance against scratching, ensuring they maintain their integrity even during intense use. This is a genuine OEM Losi part that direct bolt-fits into your 8B or 8T 2.0 gearbox without modification, making installation straightforward for RC car UK enthusiasts of all skill levels.

These bearing inserts are an important component for maintaining your RC buggy's rear gearbox assembly. They work by securely housing the bearing system that supports the drive shaft rotation, and their keyed design prevents any unwanted rotation that could lead to catastrophic drivetrain failure. For anyone serious about keeping their Losi RC buggy running smoothly and reliably, these inserts are an essential spare part to have on hand.

Key Features

• High-Durability Aluminium Construction — Manufactured from premium aluminium, these inserts are built to last the entire operational life of your Losi RC buggy, providing consistent performance through hundreds of runs without material degradation or failure.
• Hard Anodized Finish — The hard anodized coating significantly improves durability and provides excellent resistance against scratching, corrosion and wear, ensuring the inserts maintain their appearance and functional integrity even during intense racing or bashing sessions.
• Left and Right Side Keyed Design — These inserts feature a precision-engineered keyed system that keys into the gearbox, specifically designed to disallow any rotation of the inserts that could cause drivetrain failure, ensuring absolute stability and reliability during operation.
• Laser-Etched Identification — Each insert is laser-etched to clearly designate it for 2.0 gearboxes only, eliminating any confusion and ensuring you install the correct parts on your specific Losi model.
• Included Shimming Options — The inserts come with 0.1mm and 0.25mm shims included for differential shimming, allowing you to fine-tune your gearbox clearances and adjust the differential preload to achieve optimal performance characteristics.
• OEM Genuine Quality — As an official Losi part, this component meets the manufacturer's exact specifications and quality standards, guaranteeing perfect fitment and reliable performance.

Technical Performance

The LOS Rear Gearbox Bearing Inserts are engineered with precision manufacturing to ensure they perform reliably within the demanding environment of a high-performance RC buggy gearbox. The aluminium material choice provides an excellent balance between weight savings and structural rigidity, crucial for maintaining dimensional accuracy and preventing flex that could compromise bearing seating. The hard anodized surface treatment adds a protective layer that resists wear from continuous bearing rotation and gearbox contact, extending the service life of these critical components. The keyed design is particularly important in RC applications where vibration and shock loading during aggressive driving could otherwise cause component migration. The included shims (0.1mm and 0.25mm) allow differential shimming adjustments, which is essential for optimizing your gearbox preload. This attention to detail in both material selection and design makes these inserts suitable for both casual weekend RC enthusiasts and competitive racers who demand consistent, reliable performance from their Losi 8B or 8T 2.0 buggy.

What's in the Box

• Left-side rear gearbox bearing insert (aluminium, hard anodized)
• Right-side rear gearbox bearing insert (aluminium, hard anodized)
• 0.1mm differential shimming shim
• 0.25mm differential shimming shim

Frequently Asked Questions

• What Losi models are these bearing inserts compatible with? — These inserts are specifically designed for Losi 8B 2.0 and Losi 8T 2.0 RC buggies. The laser-etched identification clearly marks them for 2.0 gearboxes only, so you must verify your model before purchasing to ensure proper fitment and performance.
• Why do I need replacement bearing inserts for my Losi RC buggy? — Bearing inserts are critical components that house and support the rear drive shaft bearings. Over time, through normal use, racing, or after impacts, these inserts can wear, become damaged, or develop play that compromises drivetrain performance. Replacing them restores proper bearing support and eliminates potential drivetrain failure points.
• What do the included shims do? — The 0.1mm and 0.25mm shims are used for differential shimming, which allows you to adjust the preload and clearance in your gearbox. Proper shimming optimises gear mesh and differential operation, which is essential for smooth power delivery and reduced noise during operation.
• Are these difficult to install? — Installation requires basic mechanical knowledge and tools. The inserts key directly into the gearbox, which prevents installation errors. Most RC enthusiasts with experience maintaining their RC buggies will find installation straightforward, though consulting your Losi 8B or 8T 2.0 manual is recommended for specific procedures and torque specifications.
• How do I know if my bearing inserts need replacement? — Signs that bearing inserts may need replacement include excessive play or looseness in the rear drive shaft, grinding or unusual noises from the gearbox, or visible damage to the inserts themselves if you can access them during maintenance.
• Is this an official Losi part? — Yes, this is a genuine OEM Losi part manufactured to the exact specifications required for your 8B or 8T 2.0 buggy, ensuring perfect fitment and optimal performance.

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 Rear Gearbox Bearing Inserts, Aluminum 8B/8T 2.0 Z-LOSA4454 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.
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• 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.