Traxxas Cush Drive Key Pin and Elastomer Damper TRX7794

Overview

The Traxxas Cush Drive Key, Pin and Elastomer Damper (part number TRX7794) is an essential drivetrain spare component designed for serious RC enthusiasts who demand the best performance from their high-powered brushless RC monster trucks. This precision-engineered spare part is compatible with some of Traxxas's most impressive 8S LiPo-powered vehicles, including the X-Maxx Ultimate, X-Maxx Belted 4WD, X-Monster Chassis, and the XRT range. Whether you're a competitive racer pushing your RC truck to its limits, a weekend basher who runs hard and maintains harder, or an experienced RC hobbyist in the UK who understands the importance of quality spare parts, this cush drive component is an absolute must-have for your spares box.

The cush drive system is a critical part of your RC car's drivetrain, responsible for protecting your gearbox from shock loads and sudden impact forces during acceleration and deceleration. When you're running an 8S brushless motor producing massive power and speed, the drivetrain components experience extreme stress. The elastomer damper in this kit absorbs and dissipates these shock loads, preventing damage to your transmission, gears, and driveshafts. This means longer service intervals, fewer catastrophic failures, and more time enjoying your RC model truck rather than repairing it.

RC Model Shop stocks genuine Traxxas spare parts for UK customers who understand that using authentic manufacturer components is the best way to maintain your RC car's performance and longevity. The TRX7794 is a precision spare part that will keep your drivetrain running smoothly, whether you're conquering rough terrain, hitting high speeds on open ground, or competing in RC racing events across the UK.

Key Features

• Elastomer Damper Technology — The elastomer damper absorbs shock loads from acceleration and deceleration, protecting your gearbox and transmission from damage caused by the high torque output of brushless motors, which is essential for 8S LiPo powered RC vehicles that deliver extreme performance.
• Precision Cush Drive Pin — The carefully engineered cush drive pin works in conjunction with the elastomer damper to provide smooth power delivery and reduced drivetrain wear, ensuring your expensive gearbox components last longer under extreme RC racing conditions.
• OEM Quality Manufacturing — Built to exact Traxxas specifications, this spare component maintains the integrity and performance characteristics of your original drivetrain, ensuring your RC truck performs exactly as intended by the manufacturer.
• Multiple Vehicle Compatibility — This single spare part fits multiple high-performance Traxxas models including the X-Maxx Ultimate (available in blue, green and other colours), X-Maxx Belted 4WD, X-Monster Chassis, and the XRT VXL-8S range, making it a versatile addition to any serious RC enthusiast's spares collection.
• Essential Maintenance Item — Regular inspection and replacement of the cush drive damper and pin ensures your RC monster truck remains in peak operating condition, preventing unexpected drivetrain failures that could ruin your RC racing or bashing session.
• Genuine Traxxas Component — Using authentic Traxxas spare parts guarantees compatibility and performance, unlike counterfeit or third-party alternatives that may compromise your RC car's handling and reliability.

Technical Performance

The Traxxas Cush Drive Key, Pin and Elastomer Damper is designed specifically for high-performance 8S brushless RC vehicles that push the boundaries of speed and power. The X-Maxx Ultimate and XRT Ultimate models, for example, utilise dual 4S LiPo batteries for a combined 8S configuration, delivering 50+ mph top speeds with brushless motor technology that produces enormous torque and acceleration. The cush drive system is the unsung hero of this performance equation — it sits between the motor and gearbox, and the elastomer damper material compresses and rebounds to absorb shock loads that would otherwise shatter gears and strip driveshafts. This is engineering excellence at work: Traxxas has refined this system over years of RC racing and bashing experience. The elastomer material is precisely formulated to provide the ideal balance of shock absorption and power transmission, ensuring that maximum torque reaches the wheels without destroying the drivetrain in the process. For UK RC enthusiasts running their X-Maxx or XRT in wet British conditions, challenging terrain, or competitive racing events, maintaining a fresh cush drive damper is absolutely critical to avoiding expensive gearbox repair costs. The precision-engineered pin ensures perfect alignment and smooth engagement, whilst the elastomer damper handles the real work of protecting your transmission from the abuse that 8S brushless power can inflict.

What's in the Box

• 1x Cush Drive Key/Pin
• 1x Elastomer Damper

Frequently Asked Questions

• Is this spare part compatible with my Traxxas X-Maxx or XRT RC truck? — Yes, the TRX7794 is designed for multiple Traxxas models including the X-Maxx Ultimate (all colour variants), X-Maxx Belted 4WD (in orange, blue, red and green), X-Monster Chassis, and the entire XRT VXL-8S and XRT Ultimate range. Check your model number against the compatibility list to confirm compatibility before ordering.
• Why do I need to replace my cush drive damper? — The elastomer material in the damper degrades over time and through use, losing its ability to absorb shock loads effectively. As the damper hardens or cracks, it can no longer protect your gearbox, leading to increased drivetrain wear and potential catastrophic failures. Regular replacement ensures your RC truck remains reliable and your transmission lasts longer.
• How often should I replace the cush drive damper on my 8S brushless RC truck? — This depends on how intensively you use your RC model. Weekend bashers who run hard might replace it every 20-30 hours of use, whilst competitive racers may need replacements every 10-15 hours. Inspect the damper regularly for cracks or hardening and replace as needed to prevent drivetrain damage.
• What is the difference between the cush drive key and the elastomer damper? — The cush drive key (pin) is the mechanical component that engages with the motor bell and gearbox, whilst the elastomer damper is the compressible rubber-like material that absorbs shock loads. Together, they form a complete system that protects your drivetrain from the extreme torque of 8S brushless motors.
• Can I use this spare part to repair my damaged gearbox? — No, this component prevents gearbox damage but does not repair existing damage. If your gearbox is already damaged, you may need additional repair parts. However, installing a fresh cush drive damper will help prevent future damage from occurring.
• Is this an authentic Traxxas component? — Yes, this is a genuine OEM Traxxas spare part (TRX7794) manufactured to exact specifications. Always purchase from authorised Traxxas retailers in the UK to ensure you receive authentic components with full compatibility and performance guarantees.

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 Cush drive key / pin / elastomer damper TRX7794 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.