Overview
The HoBao H4E CNC Aluminium Differential Seat Bulkhead Cap is a precision-engineered upgrade component designed for serious RC enthusiasts in the UK who demand the highest quality in their RC car builds. This is a genuine OEM spare part manufactured by HoBao, one of the most respected names in RC buggy and off-road racing. Whether you're running a competitive RC buggy, setting up a new H4E platform, or maintaining an existing machine, this differential seat bulkhead cap represents the kind of meticulous engineering that separates winning setups from average builds.
This CNC-machined aluminium component is far more than just a simple replacement part—it's a precision upgrade that demonstrates HoBao's commitment to providing RC enthusiasts with competition-grade components. Built from high-quality aluminium and finished through CNC machining processes, this bulkhead cap ensures perfect concentricity, dimensional accuracy, and reliability. The H4E platform has become legendary in the RC buggy community for its balance of performance and tunability, and maintaining those standards with genuine HoBao components like this differential seat bulkhead cap is essential for anyone serious about their RC car hobby in the UK.
Supplied as a pair (pr), these caps give you options for building or rebuilding your differential assembly with confidence. RC car UK enthusiasts know that the differential is one of the most critical components in any RC chassis, and using precision OEM parts like these HoBao caps ensures smooth operation, proper gear engagement, and consistent performance whether you're racing competitively or enjoying weekend bashing sessions.
Key Features
- CNC-Machined Aluminium Construction — Each cap is precision-manufactured using CNC machining, which guarantees dimensional accuracy, perfect tolerances, and consistent quality across every component, ensuring they fit perfectly with your H4E chassis and differential components.
- Genuine HoBao OEM Part — This is an authentic original equipment manufacturer component from HoBao, meaning you're getting the exact same part specifications and quality that comes as standard on new HoBao H4E vehicles, with no compromise on fit or function.
- Supplied as a Pair — You receive two caps in this package, giving you a complete set for your differential assembly or providing spares for future maintenance and rebuilds.
- Lightweight Yet Rigid — Aluminium provides an excellent strength-to-weight ratio, keeping your RC car's unsprung weight to a minimum while maintaining the rigidity needed for precise differential operation under racing conditions.
- Compatible with H4E Platform — Specifically engineered for HoBao H4E vehicles, ensuring perfect fitment and compatibility with all differential and chassis components on this platform.
- Performance Upgrade Option — Whether you're replacing worn components or upgrading from a standard setup, using precision HoBao OEM parts maintains your RC buggy's performance envelope and reliability.
Technical Performance
The HoBao H4E CNC Aluminium Differential Seat Bulkhead Cap represents precision engineering at its finest, crafted from quality aluminium and finished through advanced CNC machining processes. The differential assembly is one of the most critical components in any RC buggy or off-road RC car, and the bulkhead cap plays an essential role in maintaining proper gear alignment, reducing play, and ensuring smooth torque delivery through the differential under acceleration and cornering loads. By using precision-machined aluminium rather than plastic or inferior materials, HoBao ensures that these caps maintain their dimensional accuracy through thousands of operating cycles. The CNC machining process guarantees that tolerances are held to exacting standards, meaning zero run-out, perfect concentricity, and consistent performance across the entire differential assembly. This level of engineering quality is what separates competitive RC racing setups from casual builds. The aluminium material also provides excellent durability and resistance to wear, ensuring these caps will maintain their precision fit for extended periods. Whether you're running in a competitive RC buggy racing environment or enjoying regular weekend bashing, these components provide the kind of reliability and precision that HoBao is known for throughout the RC community in the UK and worldwide.
What's in the Box
- HoBao H4E CNC Aluminium Differential Seat Bulkhead Cap (pair) — 2x precision-machined caps ready to install
Frequently Asked Questions
- What is a differential seat bulkhead cap and why do I need it? — The differential seat bulkhead cap is a critical component that secures and properly positions the differential assembly within your RC chassis. It maintains proper gear alignment and reduces play in the differential mechanism, which is essential for smooth power delivery, consistent handling, and longevity of your drivetrain components. Whether you're building a new RC buggy or maintaining an existing machine, having precision bulkhead caps ensures your differential performs at its best.
- Is this suitable for beginners? — This is a spare/upgrade component rather than a complete vehicle, so it's best suited to RC enthusiasts who already own an HoBao H4E or are building one. If you're new to RC cars and looking for a complete ready-to-run machine, we'd recommend starting with a full RTR RC buggy or off-road truck. However, if you're maintaining or upgrading an H4E, this is an excellent genuine HoBao part to have on hand.
- Will these fit my RC buggy? — These caps are specifically engineered for the HoBao H4E platform, so they will fit H4E vehicles perfectly. If you own a different HoBao model or a completely different brand, we'd recommend checking compatibility or contacting our team at RC Model Shop to ensure fitment before ordering.
- Why choose genuine HoBao OEM parts over aftermarket alternatives? — Genuine OEM parts like these differential seat bulkhead caps are engineered to exact specifications by HoBao and guarantee perfect fitment, reliability, and performance. They've been tested on HoBao's own race vehicles and proven in competitive environments worldwide. Aftermarket parts may be cheaper but often have tolerances that don't match the precision engineering standard that HoBao platforms require, potentially leading to differential play, inconsistent handling, and premature wear. For anyone serious about RC racing or want their vehicle to perform as intended, genuine parts are always the better choice.
- Are these caps difficult to install? — Installation is straightforward if you're already familiar with RC vehicle assembly and maintenance. If you're new to working on RC cars, we'd recommend consulting the HoBao H4E manual or seeking guidance from experienced builders before attempting installation. Our team at RC Model Shop is always happy to provide advice if you need it.
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 HOBAO H4E CNC ALUM DIFFERENTIA L SEAT BULKHEAD CAP (PR) H41041 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.
- Brand: HoBao
- Model Number: H41041
- Product Type: CNC Aluminium Differential Seat Bulkhead Cap
- Material: Aluminium (CNC-machined)
- Compatibility: HoBao H4E
- Quantity: Pair (2x caps)
- Tune-Up Type: Chassis
- EAN: 4711605973496
- Manufacturing Process: CNC Precision Machining
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.
