Arnott SK-4087 Suspension Strut - Rear

Rear Suspension Strut for BMW X3 and X4

The Arnott SK-4087 is a rear suspension strut for BMW models equipped with Dynamic Damper Control. It is built for the rear left or rear right position on select BMW X3 and BMW X4 applications, with a focus on stable damping response and consistent ride quality.

Designed and assembled in the USA, this Arnott shock uses premium seals, quality internal components, and corrosion-resistant materials for long-term durability. The SK-4087 is a direct-fit replacement for vehicles that need precise rear suspension control and OE-style performance.

Key Features

• Rear suspension strut for the left or right rear position
• Fits BMW X3 and BMW X4 models with Electronic Damper Control (EDC) / Dynamic Damper Control
• Premium damper construction for consistent road feel and stability
• Built with high-quality internal components and premium seals
• Corrosion-resistant materials for added durability
• Designed and assembled in the USA
• Arnott SK-4087 replacement shock for OE-style fitment

Detailed Description

The Arnott SK-4087 is engineered for rear suspension service on 2011-2017 BMW X3 and 2015-2018 BMW X4 models equipped with Electronic Damper Control. It is a practical replacement for worn rear dampers when ride quality, body control, or damping consistency has declined. This part cross-references OE number 37126799911 for the same application.

For BMW X3 and BMW X4 owners looking for a rear shock that matches the vehicle’s electronic damping setup, the SK-4087 provides a direct-fit solution with durable construction and attention to sealing and corrosion resistance. The Arnott SK-4087 is built to support predictable rear suspension response across changing road conditions.

Vehicle Fitment

• Fits 2015-2018 BMW X4, rear, w/Electronic Damper Control (EDC)
• Fits 2011-2017 BMW X3, rear, w/Electronic Damper Control (EDC)

Common Issues This Part Can Address

• Rear suspension noise from a worn damper
• Excessive bouncing or reduced damping control
• Uneven rear ride quality on BMW X3 or BMW X4 models
• Loss of stability over rough or changing road surfaces
• Failure of the original rear shock in EDC-equipped suspension systems

Installation Notes and Tips

Confirm rear left or rear right placement before installation, and verify that the vehicle is equipped with Electronic Damper Control / Dynamic Damper Control. Inspect related suspension components, mounting points, and electronic connections for wear or damage before replacing the strut. Mounting hardware is not included.

Quality Assurance

Arnott builds this replacement shock with premium seals, internal components, and corrosion-resistant materials to support reliable long-term service. The SK-4087 is designed and assembled in the USA for consistent fit and function on the listed BMW applications.