Anchor 300566 Engine Mount Kit

Engine Mount Kit for GM Full-Size and A-Body Applications

Anchor 300566 is an engine mount kit built for select Buick, Chevrolet, Oldsmobile, and Pontiac rear-wheel-drive applications. It supports the engine and helps reduce vibration transfer, making it a direct-fit choice for restoring driveline stability and smoother operation.

Engine mount kit 300566 is engineered to OEM standards and built with rubber compounds selected for abrasion resistance and aging stability. For vehicles such as the Buick Regal, Chevrolet Caprice, and Oldsmobile Cutlass Supreme, this kit provides a fitment-focused replacement for worn mounts that can cause noise, movement, and alignment issues.

Key Features

• Anchor 300566 engine mount kit for select GM vehicles
• OEM-standard design using CAD/CAM engineering processes
• Natural and Styrene Butadiene rubber for durability and long service life
• Chemlock bonding agent for a strong rubber-to-metal bond
• Rubber hardness matched to vehicle application requirements
• Hydraulic mount design used where OE applications require added vibration control
• Made in USA engine mounts

Detailed Description

This engine mount kit is designed for applications that need secure engine support and vibration damping. Anchor uses hardened steel fasteners with heat-treated Grade 5 bolts where included, along with rubber compounds manufactured to specific durometer targets for the vehicle platform. The result is a replacement solution focused on consistent fit and controlled movement under load.

Fits 1971-1990 Buick, Chevrolet, Oldsmobile, and Pontiac applications across models such as Buick LeSabre, Buick Regal, Chevrolet Caprice, Oldsmobile Delta 88, Oldsmobile Cutlass Supreme, Pontiac Bonneville, and Pontiac Grand Prix. Part number 300566 is also listed for many automatic-transmission applications, including several full-size GM and intermediate platforms.

This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

What It Helps Address

• Excess engine vibration felt in the cabin
• Engine movement caused by deteriorated mounts
• Clunking or shifting during acceleration and deceleration
• Noise from worn rubber or separated mount material
• Drivetrain instability in aging Buick, Chevrolet, Oldsmobile, and Pontiac platforms

Installation Notes and Tips

Verify engine, transmission, and model-year details before installation, especially on vehicles with automatic transmission or second-design notes. Compare the existing mount shape and bracket orientation to the replacement before bolting it in place. Inspect adjacent brackets and fasteners for wear or corrosion so the new mount seats correctly and maintains proper alignment.

Quality Assurance

Anchor manufactures these mounts to OEM standards using controlled materials and bonding processes for consistent fit and performance. The brand’s engineering approach focuses on durability, vibration control, and application-specific rubber hardness for dependable replacement quality.