KYB 553380 Shock Absorber - Rear

Overview of KYB Gas-a-just Suspension Shock Absorber 553380

The KYB Gas-a-just shock absorber 553380 is engineered for precise suspension control on Mercedes-Benz E320 and E350 models. Designed to restore original handling and ride comfort, this shock absorber features specific dimensions and mounting types tailored for these vehicles.

• Compressed length: 18.30 inches
• Extended length: 22.28 inches
• Stroke length: 3.98 inches
• Lower mount type: E2 (10.2x48)
• Upper mount type: S1
• Includes dust cover for protection
• Equipped with B-stop and R-stop bumpers
• No internal rebound spring

Detailed Product Features and Specifications

The KYB Gas-a-just 553380 shock absorber is designed with a compressed length of 18.30 inches and an extended length of 22.28 inches, providing a stroke length of 3.98 inches. The lower mount uses an E2 type fitting measuring 10.2 by 48 mm, while the upper mount is an S1 type, ensuring compatibility with the suspension system of Mercedes-Benz E320 and E350 models. This shock absorber includes a dust cover to protect internal components from debris and environmental exposure. Additionally, it features both B-stop and R-stop bumpers to limit suspension travel and prevent damage under extreme conditions. The absence of an internal rebound spring indicates a design focused on gas pressure damping for consistent performance.

About the KYB Gas-a-just Product Line

The Gas-a-just line from KYB is known for its gas-charged shock absorbers that provide improved ride quality and handling by maintaining consistent damping force. This product line is designed to replace original equipment shocks with a direct-fit solution that meets or exceeds factory specifications. The 553380 model continues this tradition by offering precise fitment and reliable performance for Mercedes-Benz E320 and E350 vehicles.

Common Applications and Problem Solving

• Restores vehicle stability and control on Mercedes-Benz E320 and E350
• Reduces excessive bouncing and body roll during cornering
• Eliminates harsh impacts from road irregularities
• Prevents premature tire wear caused by worn shocks
• Improves overall ride comfort and suspension response

Installation Notes and Tips

When installing the KYB Gas-a-just 553380 shock absorber, ensure the correct orientation of the E2 lower mount and S1 upper mount for proper fitment. Verify the compressed and extended lengths to match the vehicle’s suspension travel requirements. The included dust cover should be positioned to protect the shock shaft from dirt and moisture. It is recommended to replace shocks in pairs to maintain balanced suspension performance on both sides of the vehicle.

Quality Assurance and Warranty

KYB manufactures the Gas-a-just 553380 shock absorber to meet strict quality standards, ensuring durability and consistent performance. This part is backed by KYB’s limited warranty, which covers defects in materials and workmanship under normal use. For specific warranty details, refer to KYB’s official documentation.