Traxxas Rear Upper Bulkhead for X-Maxx 8S and XRT RC Monster Truck TRX7727R

Overview

The Traxxas Bulkhead, Rear (upper) TRX7727R is an essential replacement chassis component designed for the X-Maxx 8S and XRT brushless monster trucks. Whether you're a dedicated RC enthusiast looking to maintain peak performance, or someone who has pushed their RC monster truck to its limits, this genuine Traxxas spare part ensures your vehicle maintains structural integrity and reliable handling characteristics. The rear upper bulkhead is a critical structural element in the chassis assembly, providing crucial support for the suspension mounting points and overall frame rigidity that keeps your high-performance RC truck performing at its best.

As an authorised Traxxas retailer, RC Model Shop stocks genuine OEM spare parts like this bulkhead to keep your RC car UK collection in excellent working order. The X-Maxx 8S is renowned as one of the most powerful brushless RC monster trucks available, capable of delivering extreme performance and speed on virtually any terrain. When you're running an 8S LiPo-powered beast like the X-Maxx, having access to quality replacement chassis components means you can keep your RC truck in action for longer, enjoying consistent performance whether you're bashing in the garden, competing at the track, or exploring off-road terrain. This rear upper bulkhead is manufactured to Traxxas's rigorous quality standards, ensuring perfect fitment and reliable performance across multiple seasons of driving.

The Traxxas XRT and X-Maxx platforms represent the pinnacle of ready-to-run RC monster truck engineering, combining brushless motor power with sophisticated suspension geometry and durable chassis construction. When damage or wear occurs to the rear upper bulkhead, replacing it with an authentic Traxxas component restores your truck to factory specifications and maintains the precise geometry that Traxxas engineers designed for optimal handling, speed, and durability. Upgrading or replacing chassis components on your RC truck doesn't require technical expertise – this is a straightforward spare part swap that any RC enthusiast can handle with basic tools.

Key Features

• Genuine Traxxas OEM Component — This is an authentic manufacturer part, not an aftermarket clone, ensuring perfect fitment and compatibility with your X-Maxx 8S or XRT chassis, which is critical for maintaining the precise suspension geometry and handling characteristics that Traxxas engineers designed into these high-performance monster trucks.
• Rear Upper Bulkhead Design — Functions as a critical structural element of the rear chassis assembly, providing mounting points for suspension linkages and contributing to overall frame rigidity, which directly impacts handling stability, cornering performance, and the truck's ability to manage high-speed impacts and jumps without chassis flex.
• Universal Compatibility — Fits both the Traxxas X-Maxx Belted 4WD Brushless RTR 8S Monster Truck in all available colours (red, green, orange, and blue) as well as the X-Maxx Ultimate editions, plus the Traxxas X-Monster Chassis and the entire XRT VXL-8S and XRT Ultimate lineup, providing a single replacement part solution across multiple premium monster truck models.
• Drop-In Replacement — Requires no modifications to your existing chassis or suspension; simply removes and replaces the damaged or worn bulkhead, restoring your truck to factory condition without requiring additional adjustments, realignment, or tuning.
• High-Impact Polymer Construction — Manufactured from Traxxas's durable engineering plastics specifically formulated to withstand the extreme stresses experienced by a monster truck chassis, including high-speed impacts, landing from jumps, and the constant torque loads from brushless motor acceleration.
• Affordable Maintenance — A budget-friendly spare part that extends the lifespan of your premium RC monster truck investment by allowing targeted replacement of damaged components rather than requiring complete chassis rebuilds or new truck purchases.

Technical Performance

The rear upper bulkhead is engineered as a precision-moulded chassis component manufactured to exacting tolerances, ensuring it integrates seamlessly with the X-Maxx 8S and XRT suspension systems. The X-Maxx 8S is powered by a brushless electric motor capable of delivering extreme performance when paired with 8S LiPo battery packs, generating the horsepower necessary for jaw-dropping acceleration and blistering top speeds across mixed terrain. The rear upper bulkhead's structural role cannot be overstated – it provides critical mounting locations for the rear suspension arms, shock absorbers, and drivetrain components, all working together in a precisely engineered geometry that Traxxas has optimised through extensive testing and competition experience. When this component is intact and undamaged, it maintains the correct ride height, suspension travel, and anti-squat characteristics that allow the X-Maxx 8S to deliver the aggressive acceleration and stable high-speed handling that monster truck enthusiasts demand. The material selection and wall thickness reflect Traxxas's commitment to durability without unnecessary weight, crucial for a truck designed to handle the kinetic energy of an 8S brushless powertrain. Replacement bulkheads must be fitted correctly to restore suspension geometry to factory specifications, which ensures consistent handling response and prevents premature wear on other chassis components, tyres, and driveline elements.

What's in the Box

• Traxxas Bulkhead, Rear (upper) component

Frequently Asked Questions

• Which Traxxas RC monster trucks does this rear upper bulkhead fit? — This component is specifically engineered for the Traxxas X-Maxx Belted 4WD Brushless RTR 8S Monster Truck (all colours: red, green, orange, and blue), the Traxxas X-Maxx Ultimate editions in green and blue, the X-Monster Chassis, and the entire Traxxas XRT lineup including the XRT VXL-8S in all colours and the XRT Ultimate editions. If you own any of these models, this is the correct replacement bulkhead for your truck.
• What should I do if my X-Maxx 8S bulkhead is damaged? — A damaged or cracked rear upper bulkhead should be replaced promptly to prevent further chassis damage and maintain proper suspension geometry. Over time, driving with a compromised bulkhead can cause secondary damage to suspension components, alter ride height, and negatively impact handling. Replacing it with this genuine Traxxas part restores your truck to factory specifications and prevents more expensive repairs down the line.
• How difficult is it to install this bulkhead on my RC monster truck? — Installation is straightforward for anyone with basic mechanical knowledge. You'll need standard hand tools to remove fasteners, disconnect suspension components from the old bulkhead, and reconnect them to the new part. Most RC enthusiasts can complete this replacement in under an hour. If you're unsure, the team at RC Model Shop can provide guidance or support with the installation process.
• Is this a genuine Traxxas part or a clone? — This is an authentic Traxxas OEM (Original Equipment Manufacturer) component, manufactured to the exact specifications and quality standards of the part shipped with new X-Maxx 8S and XRT trucks. Genuine parts like this ensure perfect fitment, durability, and long-term reliability, whereas aftermarket clones may have subtle dimension variations that affect suspension geometry and handling performance. As an authorised Traxxas retailer, RC Model Shop stocks only genuine parts.
• Why is the rear upper bulkhead important for my brushless RC truck? — The rear bulkhead is a structural member that maintains the precise geometry of your suspension system. On high-powered brushless trucks like the 8S X-Maxx, the bulkhead must withstand enormous forces from acceleration, cornering, and impacts from jumps and obstacles. A compromised bulkhead flexes under load, throwing suspension geometry out of alignment, which degrades handling, increases tyre wear, and can cause the truck to feel unpredictable or unstable, especially at high speed or in high-traction cornering situations.
• Can I use this on other Traxxas models? — No, the TRX7727R is specifically engineered for the X-Maxx 8S, X-Maxx Ultimate, X-Monster Chassis, and XRT models. Other Traxxas monster truck platforms such as the Stampede, Rustler, and Bandit use different bulkhead designs. Always verify compatibility with your specific truck model before ordering. Our product listing clearly shows which vehicles are compatible, and our team can confirm fitment if you're unsure.

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. 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 Bulkhead, Rear (upper) (fits X-Maxx 8s) TRX7727R 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 get in touch with our team — we look forward to helping you get the most out of your RC experience.