If you want a complete three-piece solution designed to tame the vibration and noise of a Fiat 500, choose keuyyap 3PCS; if you need a high-performance mount kit built for the torque-heavy engines of Mercedes-AMG models like the CLA45 or GLA45, choose loongrie Engine Motor Transmission. This isn't about which one is cheaper or more popular; it is about matching the right hardware to your specific vehicle platform. I have seen too many car owners buy a part that fits the shape but fails the stress test because they ignored the engineering differences between a compact city car and a German performance sedan. For pet owners who spend hours in their cars with family members or furry companions, the difference comes down to cabin silence and ride smoothness. A vibrating engine rattles everything from cup holders to seat belts, while a solid mount keeps the interior serene.
• keuyyap 3PCS: Its biggest strength is the comprehensive three-point coverage (Right Mount, Torque Strut, Transmission) specifically tuned for the 1.4L Fiat 500, but its trade-off is that it only works on a very narrow range of older Fiat models.
• loongrie Engine Motor Transmission: Its biggest strength is the robust construction designed to handle the extreme power output of Mercedes-AMG vehicles, though it is completely incompatible with standard economy cars due to its specialized fitment.
• Who each pick is for: The keuyyap set is for the owner of a 2012–2016 Fiat 500 looking to restore factory smoothness, while the loongrie kit is for the enthusiast driving a high-horsepower CLA, B, or GLA class model who demands durability under heavy load.
The keuyyap 3PCS set is engineered with a singular focus: solving the vibration issues inherent to the Fiat 500's 1.4L L4 engine found in model years 2012 through 2016. When this specific vehicle was designed, the balance between power and comfort required precise damping, and over time, the original rubber mounts harden or crack, leading to the shuddering you feel through the steering wheel or the floorboard. This kit replaces three critical components: the Right Engine Mount, the Rear Engine Torque Strut Mount, and the Transmission Mount. By addressing all three points simultaneously, it ensures the entire powertrain is secured correctly, preventing the misalignment that often causes secondary wear on other parts.
What makes this product stand out in its category is the material science behind the build. The manufacturer uses natural rubber combined with a reinforced metal structure. Natural rubber is known for its ability to absorb high-frequency vibrations without transmitting them into the chassis. The steel brackets provide the necessary rigidity to hold the engine in place during sudden acceleration or braking, while the rubber compounds handle the heat and torque generated by daily driving. This combination directly targets the "harshness" described in the specifications, promising a return to the quiet, refined idle that the Fiat 500 was originally intended to have.
This product is ideal for the commuter who values a quiet cabin environment. If you drive the Fiat 500 to work every day, carrying groceries, or perhaps picking up a child or pet from school, the reduction in noise and vibration is not just a luxury; it reduces driver fatigue. You should buy this if your vehicle matches the 2012–2016 1.4L L4 criteria and you are experiencing shaking or clunking sounds. However, if your car is an earlier model, a different engine size, or a completely different brand, this kit will not fit. It is a precision tool for a specific machine, not a universal fix. Skip this if you own a Mercedes or a Toyota, as the mounting points and torque requirements are entirely different.
We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
Updated: 2026-11-07 · 7 min read · Independent comparison
The loongrie Engine Motor Transmission kit serves a completely different demographic: drivers of high-performance compact crossovers and hatchbacks from Mercedes-Benz. Specifically, it targets the 2.0L L4 engines found in the 2014–2019 CLA250/CLA45, the 2013–2017 B250, and the 2015–2020 GLA250/GLA45. These vehicles are not built for gentle cruising alone; they are built for spirited driving, quick shifts, and high torque outputs. The stock mounts on these cars must withstand significantly higher stress levels than those on an economy sedan, and when they fail, the consequences can be severe, including damage to the drivetrain or dangerous engine movement.
Loongrie emphasizes the use of high-quality raw materials and laboratory testing to ensure the product can replace or even surpass the original equipment (OE) brackets. The design focuses on handling the intense rotational forces of an AMG-tuned engine. The kit includes three distinct units, mirroring the complexity of the transmission and engine layout in these German vehicles. Unlike the rubber-focused approach of the keuyyap kit, this unit appears engineered to maintain structural integrity while managing the massive power delivery of a 2.0L turbocharged engine.
This is the choice for the performance enthusiast or the owner of a CLA45 or GLA45 who refuses to compromise on safety or reliability. If you enjoy taking your Mercedes on back roads or track days, you need mounts that won't flex or break under load. The inclusion of a one-year warranty service also speaks to the confidence the manufacturer has in the longevity of their raw materials. You should buy this if you drive one of the specified Mercedes models and are looking for a durable replacement that handles high stress. Conversely, do not buy this if you drive a non-Mercedes vehicle or a lower-output engine; the mounting geometry and bolt patterns are specific to the Mercedes MFA platform, and trying to force it onto a different car would be impossible.
• Best for Fiat 500 Owners → keuyyap 3PCS: Only this kit lists compatibility with the Fiat 500 1.4L 2012-2016, making it the exclusive choice for this specific vehicle.
• Best for Mercedes Performance Drivers → loongrie Engine Motor Transmission: This is the only option listed for the CLA45, GLA45, and B250 platforms, essential for handling AMG-level torque.
• Best for Reducing Cabin Noise in City Driving → keuyyap 3PCS: The natural rubber and reinforced metal design specifically targets vibration absorption for idling and low-speed urban traffic.
• Best for High-Torque Durability → loongrie Engine Motor Transmission: Built to withstand the extreme power of 2.0L L4 engines in performance trims, ensuring stability during aggressive driving.
• Best Value for Complete Coverage → Both: Both products offer a 3-piece kit, covering the right mount, rear strut/torque mount, and transmission mount for a full system refresh.
• Best for Specific OE Number Replacement → loongrie Engine Motor Transmission: Offers a wider array of reference OE numbers (A4076, A4050, A4049 series) for complex Mercedes applications compared to the Fiat-specific codes of keuyyap.
• Best for Pet Owners Seeking Quiet → keuyyap 3PCS: The vibration control features are critical for keeping pets calm and comfortable during short city commutes in a Fiat 500.
• Best for Long-Term Reliability Under Stress → loongrie Engine Motor Transmission: The emphasis on advanced laboratory testing and high-strength materials suggests superior longevity for high-mileage performance vehicles.
In my opinion, if you own a Fiat 500, the keuyyap 3PCS is the clear winner because it is purpose-built to address the exact vibration and noise complaints common to that 1.4L engine. It offers a complete solution that restores the car's intended character. However, if you drive a Mercedes CLA45 or GLA45, there is no comparison; the loongrie Engine Motor Transmission is the only logical choice because it is engineered to survive the immense power of that platform. For pet owners, both options serve a vital role: keuyyap creates a peaceful sanctuary in a small city car, while loongrie ensures the stability needed to protect your family and cargo in a high-performance machine. I would recommend buying based strictly on your vehicle's make and model, as using the wrong kit could lead to installation failure or unsafe driving conditions.
Yes, both products are designed to absorb engine movement. The keuyyap set uses natural rubber to dampen noise, while the loongrie kit uses high-strength materials to stabilize high-torque engines, both resulting in a smoother, quieter cabin experience.
You must verify your vehicle's year, make, model, and engine size against the specific lists provided in the product descriptions. Using Amazon's partfinder tool is the safest way to confirm compatibility before purchasing either the keuyyap or loongrie kit.
The manufacturers claim both kits are designed to match or exceed original equipment standards. Keuyyap focuses on enhanced vibration control, while loongrie emphasizes high-quality raw materials and laboratory-tested durability for performance applications.
The loongrie Engine Motor Transmission explicitly provides a one-year warranty service and customer support contact.
As an Amazon Associate I earn from qualifying purchases.
We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon and affiliated sites.
When you buy through links on this page, we may earn a commission from qualifying purchases at no extra cost to you.
Amazon and the Amazon logo are trademarks of Amazon or its affiliates. This site is an independent third-party review and is not affiliated with, endorsed by, or sponsored by Amazon or the product brands mentioned.