MasterPro A5458HY Automatic Transmission Mount

Reliable Automatic Transmission Mount for Buick, Chevrolet, GMC, and Saturn

The MasterPro MRC Mounts A5458HY automatic transmission mount is designed to provide stable support and reduce vibration for select Buick, Chevrolet, GMC, and Saturn vehicles. Engineered as a standard replacement part, it ensures compatibility and durability for models like the Acadia, Enclave, Outlook, and Traverse.

• Black rubber bushing for effective vibration dampening
• Steel mount material for strength and longevity
• Fluid-filled cushion type to absorb transmission movement
• Two stud quantity for secure attachment
• OEM replacement grade meeting or exceeding original equipment specifications

About the MRC Mounts Product Line

The MRC Mounts line by MasterPro focuses on delivering reliable transmission mounting solutions that meet or exceed original equipment manufacturer standards. This product line emphasizes durability and proper fitment, ensuring that each mount, including the A5458HY, provides consistent performance and helps maintain vehicle stability under normal driving conditions.

Product Details and Specifications

This automatic transmission mount features a black rubber bushing combined with a fluid-filled cushion to effectively reduce noise and vibration transmitted from the transmission to the vehicle frame. Constructed from steel, the mount offers robust support and resistance to wear. The part includes two studs for mounting but does not come with additional hardware, mounting brackets, or heat shields. It is designed as a direct OEM replacement, compatible with one per vehicle installation.

Common Applications and Problem Solving

• Reduces excessive transmission vibration and noise
• Prevents transmission misalignment and shifting issues
• Minimizes wear on transmission components caused by movement
• Addresses mounting failure symptoms such as clunking or harsh shifting
• Restores proper transmission support in Buick Acadia, Chevrolet Traverse, GMC Acadia Limited, Saturn Outlook, and Enclave models

Installation Notes and Tips

Installation of the MasterPro MRC Mounts A5458HY requires removal of the old transmission mount and securing the new mount using the existing studs. Since mounting hardware is not included, ensure you have the appropriate bolts and tools before beginning. Follow vehicle-specific service manual instructions for torque specifications and safety precautions. Proper alignment during installation is critical to avoid premature wear or transmission issues.

Quality Assurance and Warranty

The A5458HY transmission mount meets or exceeds original equipment manufacturer specifications, ensuring reliable performance and fitment. While mounting hardware and instructions are not included, the part is manufactured to OEM standards for durability and function. Please consult the product documentation or manufacturer for warranty details.