KYB 553306 Shock Absorber - Rear

Overview of KYB Gas-a-just Suspension Shock Absorber 553306

The KYB Gas-a-just shock absorber 553306 is engineered for precise suspension control on select Mercedes-Benz models. Designed to restore original handling and ride comfort, this shock absorber suits vehicles like the C55 AMG, C230, C240, C280, C320, and C350.

• Compressed length: 17.71 inches
• Extended length: 21.81 inches
• Stroke length: 4.1 inches
• Lower mount type: E2(10x40)
• Upper mount type: S1
• Includes dust cover for protection
• Equipped with B-stop and R-stop for controlled travel
• No internal rebound spring

Details on KYB Gas-a-just Shock Absorber Features

The KYB Gas-a-just line is designed to provide consistent damping performance by using pressurized nitrogen gas to reduce aeration and foaming inside the shock. This technology helps maintain stable handling and ride quality over a wide range of driving conditions. The 553306 shock absorber features a 17.71-inch compressed length and extends to 21.81 inches, with a 4.1-inch stroke length, ensuring compatibility with the suspension geometry of specific Mercedes-Benz models. The E2(10x40) lower mount and S1 upper mount types provide secure attachment points, while the included dust cover protects internal components from debris and contaminants. The presence of B-stop and R-stop components helps prevent over-compression and over-extension, contributing to suspension durability and driver safety.

Compatible Mercedes-Benz Models and Applications

This KYB Gas-a-just shock absorber 553306 is compatible with the following Mercedes-Benz vehicles:

• C55 AMG
• C230
• C240
• C280
• C320
• C350

It is designed to replace worn or damaged shocks to restore proper suspension function and improve vehicle stability.

Common Suspension Issues Addressed

• Reduced ride comfort due to worn shocks
• Excessive body roll or instability during cornering
• Uneven tire wear caused by poor damping
• Increased noise or vibration from suspension components
• Loss of vehicle control on rough or uneven roads

Installation Notes and Tips

When installing the KYB Gas-a-just shock absorber 553306, ensure the vehicle is securely lifted and supported. Verify the correct orientation of the upper S1 and lower E2(10x40) mounts. Inspect mounting hardware and replace if necessary to maintain secure attachment. The included dust cover should be properly seated to protect the shock absorber shaft. It is recommended to replace shocks in pairs to maintain balanced suspension performance.

Quality Assurance and Warranty

KYB manufactures the Gas-a-just shock absorbers to meet or exceed OEM specifications for durability and performance. The 553306 part undergoes rigorous quality control to ensure consistent damping characteristics. While specific warranty details may vary, KYB typically offers a limited warranty covering defects in materials and workmanship. Consult product documentation or the manufacturer for exact warranty terms.