6 Aluminum Engine Mounts For Heavy Duty Bashing Upgrades

When an RC truck hits a jump at full speed, the motor mount becomes the silent hero absorbing the kinetic shock. Stock plastic components often flex or melt under high-torque demands, turning a high-octane bash session into a premature trip home. Upgrading to aluminum ensures that power goes directly to the wheels rather than being wasted through chassis vibration.

Disclosure: This site earns commissions from listed merchants at no cost to you. Thank you!

Traxxas 7760 Aluminum Motor Mount: Best for X-Maxx

The Traxxas 7760 is the gold standard for X-Maxx owners who refuse to compromise on factory compatibility. By utilizing a rigid, CNC-machined aluminum block, this mount eliminates the flex inherent in the stock composite setup. It provides a rock-solid foundation that keeps gear mesh consistent, even during violent landings.

Precision is the hallmark of this component. Because it is a genuine Traxxas part, the integration with existing transmission housings is seamless and requires zero modification. If the primary goal is maintaining the factory geometry while gaining massive structural reinforcement, this is the definitive choice.

Avoid this mount only if the budget is the absolute primary concern, as official parts typically carry a premium price tag. For those running heavy tires or high-pinion gearing, however, the 7760 is an essential insurance policy. It remains the most reliable path to trouble-free bashing.

Hot Racing AON18M01: Top Arrma Kraton Upgrade Mount

The Hot Racing AON18M01 offers a refined design specifically engineered to cure the alignment frustrations often found in Arrma bashers. Its standout feature is a high-clearance design that makes adjusting the gear mesh significantly easier than the stock sliding plate. This design saves valuable time at the track or in the field.

Construction-wise, this mount excels at preventing motor movement under heavy load. The hardened aluminum alloy provides a stiffness that helps maintain perfect spacing between the pinion and spur gear. Consistent mesh is the difference between a long afternoon of driving and a stripped gear emergency.

This is the perfect upgrade for the intermediate basher who frequently swaps pinions to tune for different terrain types. It bridges the gap between boutique, high-priced race parts and flimsy stock mounts. Investing here is a smart move for anyone pushing the limits of an Arrma Kraton.

M2C Racing 1188 Motor Mount: Ultimate Durability

M2C Racing is synonymous with over-engineering for the sake of survival, and the 1188 mount is no exception. This component is machined from 7075 aircraft-grade aluminum, which is significantly more resistant to bending and deformation than standard 6061 alloys. It is built to withstand impacts that would leave other mounts twisted or cracked.

This mount is designed for those who treat their RC vehicles as machines of war. It features an integrated cooling rib pattern that doubles as a structural stabilizer. When the stakes for durability are high—such as high-speed jumps on hard-packed dirt—the M2C 1188 stands alone.

If extreme bashing is the priority, look no further. While the cost is higher than competitors, the peace of mind provided by its legendary durability makes it a bargain in the long run. It is the definitive choice for the basher who never wants to worry about a mount failure again.

Vitavon CNC Aluminum Mount: Best for Heat Transfer

Thermal management is often overlooked, but the Vitavon CNC mount treats the motor canister as a giant heatsink. Its massive surface area and integrated cooling fins actively dissipate heat away from the motor body during high-intensity sessions. This is a critical advantage for brushless systems that are prone to thermal shutdown.

Beyond heat dissipation, the Vitavon mount offers a stunning aesthetic finish that stands out in any build. The tolerances are exceptionally tight, ensuring that once the motor is locked into place, it stays there. This rigidity is vital for long-duration runs where heat soak can cause metal to expand and shift.

Choose this mount if the setup frequently encounters overheating issues or if the RC is geared aggressively. It is a highly specialized piece of gear that rewards the user with better motor longevity. The Vitavon is for the enthusiast who values component health as much as raw speed.

Integy Billet Machined Mount: The Top Budget Option

The Integy Billet Machined Mount is the entry point for those ready to leave plastic behind without spending a fortune. It offers a clean, straightforward design that provides an immediate stiffness upgrade over the stock setup. For the casual basher, the difference in handling and reliability is immediately noticeable.

While it may lack the complex cooling features of premium race-grade mounts, it serves as a robust shield against gear mesh misalignment. The anodized finish also adds a layer of corrosion resistance, which is helpful for those who occasionally run in damp conditions. It is a functional, no-nonsense upgrade.

This mount is ideal for someone just beginning their journey into high-performance bashing. It provides a significant durability boost at a price point that leaves room in the budget for other necessary upgrades like bearings or tires. It represents the best value-to-performance ratio for the casual user.

GPM Racing Aluminum Motor Mount: Excellent Precision

GPM Racing is known for precision machining that feels custom-fitted to the vehicle. Their aluminum motor mount is designed to fit the chassis with zero play, ensuring that vibration is dampened at the source. This attention to detail results in a smoother drivetrain and a quieter overall operation.

The lightweight design of the GPM mount ensures that center-of-gravity remains optimized for jumping. It strikes a balance between mass and strength, making it versatile for both racing tracks and rough backyard terrain. The aesthetic options available also allow for a degree of personalization that many owners appreciate.

If the goal is to refine the build and achieve the tightest possible mechanical tolerances, GPM is a top-tier choice. It provides a professional feel and consistent performance across varied environments. It is a highly reliable component that rarely disappoints.

How to Choose the Right Aluminum Mount for Bashing

Selecting the correct mount depends heavily on the terrain and the weight of the vehicle. For heavy 1/5 scale bashers, prioritize 7075-grade aluminum for its superior impact resistance. For lighter vehicles, standard 6061-grade is usually sufficient and helps keep overall weight down.

Consider the complexity of the adjustment mechanism as well. If the vehicle requires frequent gear changes, choose a mount with an easy-access cam or sliding plate system. Hard-to-reach adjustment screws often lead to frustration and poor gear mesh settings in the field.

• Hard-packed dirt or jumps: Prioritize durability and high-grade alloys.
• Loose sand or grass: Prioritize heat dissipation to combat motor strain.
• Casual backyard use: Prioritize ease of installation and value.

Understanding Motor Heat Dissipation and Gearing

Aluminum mounts function as passive heatsinks, drawing heat away from the motor can through conductive cooling. When choosing an aluminum mount, ensure the motor is physically touching the mount surface for maximum efficiency. Some mounts offer specialized thermal paste channels to bridge the gap between motor and metal.

Gearing choices also dictate how much heat the mount needs to handle. Higher gear ratios put more load on the motor, leading to rapid heat spikes during long runs. If the motor is running hot to the touch, consider a mount with larger cooling fins to promote airflow.

Always monitor motor temperatures with a laser thermometer during the first few runs with a new mount. If the temperature exceeds 160°F (71°C), the gearing is likely too aggressive. Combining an aluminum mount with proper gearing is the key to a reliable, long-lasting RC vehicle.

Installation Tips: Securing Screws for Hard Bashing

Installing an aluminum mount requires a different approach than plastic, primarily due to the risk of vibration-induced loosening. Use a small amount of medium-strength (blue) thread locker on all metal-to-metal screw connections. This prevents bolts from backing out during the extreme vibrations of high-speed bashing.

Do not over-tighten the screws, as aluminum threads can strip if forced beyond their limits. Use a quality set of hex drivers to avoid rounding the screw heads during installation. If a screw feels stiff, back it out and clear the threads rather than forcing the turn.

Finally, ensure the gear mesh is set with a thin strip of paper between the gears before tightening the final fasteners. A gap that is too tight causes binding and motor stress, while a gap that is too wide leads to stripped spur gears. A perfect fit is the result of patience, not raw force.

Routine Maintenance to Keep Your Engine Mount Secure

Periodic inspections are the difference between a quick maintenance session and a total failure. Every few runs, check the tightness of the motor mount screws, as heat cycles and terrain shocks can cause them to loosen over time. A quick glance during a battery change can prevent a broken day.

Keep the mount free of debris and dirt buildup, which can act as an insulator and trap heat. Compressed air or a soft brush is usually enough to clear the cooling fins. If the RC has been used in wet conditions, dry the mount thoroughly to prevent potential oxidation or corrosion of the metal.

Treat the motor mount as a critical structural component rather than a permanent fixture. If a severe crash occurs, inspect the mount for hairline fractures or bending. Replacing a compromised mount early is far cheaper than dealing with the catastrophic gear failure that usually follows.

Upgrading to an aluminum motor mount is the single most effective way to harden an RC vehicle against the rigors of serious bashing. By choosing the right material and maintaining the installation properly, the frustration of stripped gears and broken mounts becomes a thing of the past. Focus on the terrain ahead, push the limits of the vehicle, and enjoy the confidence that comes with a bulletproof drivetrain.