KYB 553381 Suspension Shock Absorber - Rear

Overview of KYB Gas-a-just Suspension Shock Absorber 553381

The KYB Gas-a-just Suspension Shock Absorber 553381 is engineered for precise damping control and reliable performance. Designed specifically for select Mercedes-Benz models, this shock absorber helps maintain vehicle stability and ride comfort under various driving conditions.

• Compressed length: 15.83 inches
• Extended length: 22.83 inches
• Stroke length: 7.00 inches
• Lower mount type: E2 (10.2x48)
• Upper mount type: S1
• Rear stop (R-stop) included
• No dust cover or internal rebound spring

About the KYB Gas-a-just Product Line

The Gas-a-just line from KYB focuses on gas-charged shock absorbers designed to restore original handling and control characteristics. This product line uses pressurized gas to reduce aeration and foaming inside the shock, providing consistent damping performance. The 553381 model is part of this line, offering a balance of comfort and control tailored for Mercedes-Benz vehicles.

Detailed Product Description

The KYB Gas-a-just shock absorber 553381 features a compressed length of 15.83 inches and an extended length of 22.83 inches, with a stroke length of 7.00 inches. It is equipped with an E2 lower mount measuring 10.2 by 48 mm and an S1 upper mount, ensuring proper fitment and secure installation. The inclusion of an R-stop (rear stop) helps protect the shock absorber from overextension, enhancing durability. This shock absorber does not include a dust cover or internal rebound spring, which is typical for this design and application.

Compatible Mercedes-Benz Models

• Mercedes-Benz C63 AMG
• Mercedes-Benz C250
• Mercedes-Benz C300
• Mercedes-Benz C350
• Mercedes-Benz E63 AMG
• Mercedes-Benz E350
• Mercedes-Benz E400
• Mercedes-Benz E450

Common Issues Addressed by KYB Gas-a-just Shock Absorber 553381

• Reduced vehicle stability and control during cornering or braking
• Excessive body roll or sway on uneven roads
• Increased stopping distances due to poor shock absorption
• Uneven tire wear caused by inconsistent damping
• Harsh or uncomfortable ride quality

Installation Notes and Tips

Ensure the vehicle is securely lifted and supported before removing the old shock absorber. Verify the lower mount type E2 (10.2x48) and upper mount type S1 match the vehicle’s specifications. The R-stop feature requires careful alignment to prevent damage during installation. Since this shock absorber does not include a dust cover, inspect the mounting area for debris or corrosion and clean as necessary. Professional installation is recommended for optimal performance and safety.

Quality Assurance and Warranty

KYB manufactures the Gas-a-just shock absorbers to meet or exceed OEM standards for fit, form, and function. The part number 553381 undergoes rigorous quality control to ensure durability and consistent performance. Warranty coverage details should be confirmed with the supplier or manufacturer, as they may vary by region.