MasterPro A5948 Automatic Transmission Mount

Automatic Transmission Mount for HD Trucks

MasterPro MRC Mounts A5948 is an OEM replacement automatic transmission mount built for heavy-duty Chevrolet and GMC trucks. It uses a steel bracket, rubber bushing, and solid cushion construction to match the original mounting style on supported applications.

Compatible with 2011-2019 Chevrolet Silverado 2500 HD, 2011-2019 Chevrolet Silverado 3500 HD, 2011-2019 GMC Sierra 2500 HD, 2011-2019 GMC Sierra 3500 HD, 2015-2017 Chevrolet Silverado 3500, and 2011-2013 Chevrolet Silverado 3500.

Key Features

• MasterPro MRC Mounts A5948 automatic transmission mount
• OEM replacement / standard replacement grade
• Steel mount and steel bracket construction
• Black bracket and black bushing finish
• Rubber bushing with solid cushion type
• Mounting bracket included
• Meets or exceeds original equipment manufacturer specifications
• One mount required per vehicle

Product Details

The MasterPro MRC Mounts line focuses on direct-fit replacement mounting components for drivetrain service. Part number A5948 is built as a transmission mount assembly with one stud, two mounting holes, and an OEM replacement mount type for the listed Chevrolet Silverado and GMC Sierra applications. This part cross-references Anchor 3278 for the same application.

Use A5948 when servicing the transmission support point on 2011-2019 Chevrolet Silverado 2500 HD and Silverado 3500 HD, as well as 2011-2019 GMC Sierra 2500 HD and Sierra 3500 HD. It also covers 2015-2017 Chevrolet Silverado 3500 and 2011-2013 Chevrolet Silverado 3500. The design follows original equipment specifications for fit and mounting layout.

Common Issues This Part Can Address

• Broken or deteriorated transmission mount rubber
• Excessive drivetrain movement under load
• Clunking or vibration from worn mount support
• Misalignment at the transmission mounting point
• Need for an OE-style replacement during transmission service

Installation Notes

Verify the vehicle year, make, model, and transmission mount configuration before installation. Compare the original mount, bracket shape, stud count, and mounting hole layout to A5948 before removal. Mounting hardware is not included, so reuse or source the correct fasteners as needed. Professional installation is recommended for proper alignment and torque.

Quality Assurance

MasterPro MRC Mounts A5948 is manufactured as a standard replacement part that meets or exceeds original equipment manufacturer specifications for the listed applications. It is built for direct replacement service on Chevrolet Silverado and GMC Sierra HD trucks where an OEM-style automatic transmission mount is required.