Anchor 9866 Engine Torque Strut Mount - Rear or Rear Lower

Engine Torque Strut Mount for Mercedes-Benz and INFINITI

Anchor 9866 is a rear engine torque strut mount engineered to control engine movement and reduce rocking under load. It is built to OE standards for direct replacement use on select Mercedes-Benz and INFINITI applications, including Mercedes-Benz CLA250, GLA250, CLA45 AMG, GLA45 AMG, GLA200, B250, and INFINITI QX30.

Key Features

• Rear lower engine torque strut mount for select compact Mercedes-Benz and INFINITI platforms
• Natural and SBR rubber construction for durability and performance
• Rubber compound mixed to a specific durometer hardness
• Rubber-to-metal bond secured with a special bonding agent
• Heat-treated grade 5 steel fasteners
• OE-standard engineering for direct-fit replacement use
• Anchor 9866 cross-references AMS Automotive 4879 and Marmon Ride Control A4050

Detailed Description

This Anchor 9866 torque strut mount is designed to stabilize the engine by limiting fore-and-aft movement that can occur during acceleration, shifting, and deceleration. It is a direct replacement for rear lower mount applications on 2014-2020 Mercedes-Benz CLA250, GLA250, CLA45 AMG, GLA45 AMG, GLA200, and B250 models, plus 2017-2019 INFINITI QX30. The part number 9866 is built with rubber and metal construction selected for long service life and consistent mounting performance.

What It Helps Address

• Excessive engine rocking during throttle changes
• Clunking or movement felt from worn torque strut hardware
• Vibration transfer caused by deteriorated rubber isolation
• Loose or unstable engine positioning at the rear mount location
• Noise from a failed lower engine torque strut mount

Installation Notes and Tips

Verify the vehicle’s mount position before ordering, since this application uses rear and rear lower configurations. Confirm fitment by year, make, model, and position against the vehicle’s existing mount layout. Inspect adjacent engine mounts and brackets during replacement to ensure the new torque strut mount performs as intended.

Quality Assurance

Anchor engineers this part to OE standards and uses natural and SBR rubber, heat-treated grade 5 steel fasteners, and a bonded rubber-to-metal design for consistent fit and function. Anchor 9866 includes a 12-month warranty.