Overview
The Traxxas Gearbox Halves (Front & Rear) with rubber access plug (TRX4991) are essential replacement components for Traxxas RC vehicles. Whether you're a dedicated RC enthusiast in the UK running a high-performance brushless RC car, a weekend basher pushing your truck to the limit, or someone who simply needs to maintain their RC model in peak condition, these gearbox halves are a critical part of keeping your vehicle running smoothly. Traxxas is the world's leading manufacturer of ready to run RC vehicles, and their genuine replacement parts are engineered to the same exacting standards as the vehicles themselves.
Gearbox damage or wear is one of the most common maintenance issues faced by RC car owners, whether you're running a 1/10 scale monster truck, buggy, or short course truck. The front and rear gearbox halves work together to house the transmission gears and transfer power from the motor to the wheels. Over time, through aggressive driving, crashes, or simply normal wear and tear, these components can crack, strip, or become damaged. Having a genuine Traxxas replacement set on hand ensures you can quickly get back to the track or terrain without extended downtime. These are the authentic, factory-specification gearbox halves that your Traxxas model was originally built with.
The included rubber access plug is a small but important component that provides sealed access to the gearbox for maintenance, adjustment, and inspection without requiring complete disassembly. This practical design feature is typical of Traxxas's user-friendly engineering philosophy, making it easier for UK RC enthusiasts to maintain their vehicles at home without requiring professional workshop facilities.
Key Features
- Front and Rear Gearbox Halves — This product includes both the front and rear gearbox halves as a matched pair, ensuring your transmission operates with proper alignment and performance characteristics across your entire drivetrain. Buying a complete set guarantees compatibility and eliminates the need to source components separately.
- Genuine Traxxas Manufacture — These are authentic Traxxas OEM (Original Equipment Manufacturer) parts built to the same precision tolerances and material specifications as the components fitted to new vehicles. This ensures perfect fitment and reliable performance in your RC model.
- Rubber Access Plug Included — The included rubber access plug provides convenient sealed access to the internal gearbox components for maintenance, lubrication changes, and gear inspection without dismantling the entire gearbox. This practical feature saves time and reduces the risk of introducing dirt or debris during routine servicing.
- Direct Replacement Component — Designed as a drop-in replacement for damaged or worn factory gearbox halves, these components require no modification or adjustment to fit correctly into your vehicle's chassis and frame structure.
- Essential Maintenance Part — Whether you've suffered a serious crash that cracked your gearbox, are rebuilding a vehicle, or simply maintaining your RC car collection, these halves are an essential spare part that should be kept on hand for quick repairs.
- Durable Construction — Engineered from robust materials capable of withstanding the stresses and impacts of aggressive RC car driving, racing, and everyday use on British terrain and conditions.
Technical Performance
The Traxxas Gearbox Halves represent precision engineering at the heart of your RC vehicle's drivetrain. The gearbox assembly is responsible for transferring rotational power from your brushless or brushed motor through a series of precisely-cut spur gears to the differential and ultimately to your wheels. The gearbox halves form the housing that contains these critical components, and any damage to these halves can result in misalignment, gear binding, performance loss, or complete drivetrain failure. Traxxas manufactures these components from engineering-grade plastics or aluminium alloys (depending on the specific vehicle platform) that are designed to absorb impacts and flexing during hard driving whilst maintaining dimensional stability and proper gear mesh. The rubber access plug is moulded from durable elastomer material that provides a reliable seal against dirt and moisture ingress whilst remaining easy to remove and replace for routine maintenance. These are the exact same gearbox halves that come fitted in new Traxxas vehicles, ensuring you receive components that meet factory specifications and quality standards. For UK RC enthusiasts running anything from 1/10 scale buggies and trucks to larger 1/8 scale competition models, having genuine replacement gearbox halves available means you can keep your vehicle in action throughout the racing season or across casual driving adventures.
What's in the Box
- Front gearbox half
- Rear gearbox half
- Rubber access plug
Frequently Asked Questions
- Why would I need replacement gearbox halves for my RC car? — Gearbox halves are prone to damage from crashes, impacts, and hard driving because they house the sensitive internal transmission gears. Cracked, stripped, or damaged gearbox halves will cause gear misalignment, drivetrain noise, and eventually complete transmission failure. Keeping genuine replacement halves on hand means you can quickly repair your vehicle and get back to driving rather than waiting for parts to arrive.
- Are these genuine Traxxas parts or third-party alternatives? — These are authentic Traxxas OEM parts manufactured to factory specifications. Choosing genuine Traxxas replacement parts ensures perfect fitment, reliable performance, and compatibility with your specific vehicle model. Third-party alternatives may introduce fitment issues or premature failure.
- What is the rubber access plug used for? — The rubber access plug provides sealed entry to the gearbox interior for maintenance tasks such as adding or changing gear oil, adjusting gear mesh clearance, or inspecting internal components. This design eliminates the need to completely disassemble your gearbox for routine service, saving time and reducing the risk of contamination.
- Do I need any special tools or expertise to install these gearbox halves? — Installation requires basic mechanical knowledge and standard RC tool sets. You'll need to remove your vehicle's chassis, drain any existing gear oil, remove the damaged gearbox halves, and bolt the new halves into position. If you're new to RC car maintenance, consult your Traxxas vehicle manual or seek advice from experienced enthusiasts at your local RC hobby shop in the UK.
- Which Traxxas vehicles use these gearbox halves? — The TRX4991 gearbox halves are designed for specific Traxxas models. Check your vehicle documentation or contact RC Model Shop to confirm compatibility with your particular Traxxas RC car or truck before purchasing.
- Can these be used for both on-road and off-road Traxxas vehicles? — These gearbox halves are designed for specific Traxxas platforms, which may include on-road racing models, stadium trucks, buggies, or off-road bashers depending on compatibility. Verify your vehicle model against the part compatibility list to ensure correct application.
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 Traxxas Gearbox Halves (Front & Rear) / rubber access plug TRX4991 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.
- Part Number: TRX4991
- Product Type: Front and Rear Gearbox Halves with Rubber Access Plug
- Manufacturer: Traxxas
- Included Components: Front gearbox half, rear gearbox half, rubber access plug
- Genuine OEM Traxxas Part: Yes
- Compatibility: Specific Traxxas vehicle models (check documentation for exact application)
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.
