Arnott SK-3218 Shock Absorber - Rear

Rear Shock Absorber for Mercedes-Benz R-Class

Arnott SK-3218 is a new rear shock absorber for Mercedes-Benz R-Class 4MATIC and rear-wheel drive SUV models equipped with Airmatic and without ADS. It is built for the right or left rear position and uses a custom-valved twin-tube design to deliver controlled ride response for daily driving.

Key Features

• Fits the rear right or rear left position on select Mercedes-Benz R-Class models
• Designed for vehicles with Airmatic and without ADS (Adaptive Damping System)
• Custom-valved shock tuned and road tested for balanced ride control
• Twin-tube construction for consistent damping performance
• Includes a polyurethane bump stop, top and bottom mounts, and a protective dust boot
• Assembled in the USA

Product Details

SK-3218 is part of Arnott’s NEW product line, which focuses on new suspension components engineered for direct replacement applications. This rear shock absorber is built for 2006-2013 Mercedes-Benz R350, 2007-2009 Mercedes-Benz R320, 2006-2008 Mercedes-Benz R500, and 2008 Mercedes-Benz R550 models. It is a direct-fit rear shock for Mercedes-Benz R-Class vehicles that use Airmatic suspension and do not have ADS.

This part cross-references Mercedes-Benz OE numbers 2513200631 and 2513200731 for the same application. The Arnott SK-3218 is a practical choice when replacing a worn rear shock on a Mercedes-Benz R350 or other listed R-Class model and restoring stable rear suspension response.

Common Problems This Part Can Address

• Rear suspension bounce or excessive body movement
• Uneven damping response at the rear of the vehicle
• Noisy or worn shock absorber operation
• Reduced ride control over bumps and road joints
• Loss of consistent rear suspension performance

Installation Notes

Compatible With 2006-2013 Mercedes-Benz R350, rear; 2007-2009 Mercedes-Benz R320, rear; 2006-2008 Mercedes-Benz R500, rear; and 2008 Mercedes-Benz R550, rear. Not suitable for vehicles with front air suspension. Verify Airmatic equipment and confirm the vehicle does not use ADS before installation. Use the existing vehicle configuration to confirm left or right rear placement, since this shock is designed for either side.

Quality Assurance

Arnott backs SK-3218 with a Limited Lifetime Warranty and a 30-Day Satisfaction Guarantee. The shock is assembled in the USA and built as a new replacement component for Mercedes-Benz R-Class rear suspension service.