MasterPro A2779HY Automatic Transmission Mount - Center or Left

Automatic Transmission Mount for OE Replacement

MasterPro A2779HY is a standard replacement automatic transmission mount built for OE-style fit and function. It uses a steel mount body with a rubber bushing and fluid-filled cushion to help support the transmission and manage drivetrain movement in service.

Compatible with select Cadillac, Buick, and Oldsmobile applications, including Cadillac Allante, Buick Reatta, Buick Riviera, Cadillac Eldorado, Cadillac Seville, and Oldsmobile Toronado models with manual transmissions in the listed positions. The MasterPro A2779HY is made to meet or exceed original equipment manufacturer specifications.

Key Features

• OE replacement automatic transmission mount
• Steel mount construction with black rubber bushing
• Fluid-filled cushion type for controlled support
• Standard replacement grade for direct service use
• Meets or exceeds original equipment manufacturer specifications
• Mount type: OEM replacement
• Stud quantity: 4
• Per vehicle quantity: 1

Fitment Details

• Fits 1987-1992 Cadillac Allante, center
• Fits 1989-1991 Buick Reatta, left
• Fits 1989-1991 Buick Riviera, left
• Fits 1988-1991 Cadillac Eldorado, left
• Fits 1988-1991 Cadillac Seville, left
• Fits 1989-1991 Oldsmobile Toronado, left

This part cross-references Anchor 2779 and Pioneer 612779 for the same application. Part number A2779HY is also referenced for OE-style service on these vehicles.

What It Helps Address

• Excessive drivetrain movement during acceleration or shifting
• Vibration transferred into the cabin from a worn mount
• Clunking or shifting feel caused by deteriorated transmission support
• Misalignment from a failed fluid-filled mount
• Noise from a cracked or separated rubber bushing

Installation Notes

Verify the vehicle position and transmission application before installation. This mount does not include mounting hardware, a mounting bracket, heat shield, or instructions. Inspect adjacent drivetrain components and mounting points for wear or damage before replacing the mount.

Quality Assurance

MasterPro A2779HY is built as an OEM replacement and is stated to meet or exceed original equipment manufacturer specifications for the listed applications.