KYB 553393 Shock Absorber - Rear

Overview of KYB Gas-a-just Suspension Shock Absorber 553393

The KYB Gas-a-just Suspension Shock Absorber 553393 is engineered for the Smart Fortwo, providing reliable damping performance tailored to this compact vehicle. Designed to restore original handling and ride quality, this shock absorber meets precise fitment specifications for optimal suspension function.

• Compressed length: 12.04 inches
• Extended length: 16.22 inches
• Stroke length: 4.18 inches
• Lower mount type: E2 (10x44.2)
• Upper mount type: S1
• Includes R-stop but 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 improve vehicle stability and control. This product line uses pressurized gas to reduce aeration and foaming inside the shock, which helps maintain consistent damping performance. The 553393 shock absorber is part of this line, offering a balance of comfort and handling specifically calibrated for the Smart Fortwo.

Detailed Product Description

The KYB Gas-a-just shock absorber 553393 features a compressed length of 12.04 inches and an extended length of 16.22 inches, providing a stroke length of 4.18 inches. The lower mount uses an E2 type fitting (10x44.2), while the upper mount is an S1 type, ensuring precise compatibility with the Smart Fortwo suspension system. This shock absorber includes an R-stop to limit extension but does not have a dust cover or internal rebound spring, which is consistent with the original equipment design for this vehicle. These specifications ensure that the shock absorber maintains proper suspension travel and damping characteristics for safe and predictable handling.

Common Applications and Problem Solving

• Restores original ride comfort and handling on Smart Fortwo vehicles
• Reduces excessive bouncing and body roll during cornering
• Improves vehicle stability on uneven or rough road surfaces
• Addresses noise and vibration issues caused by worn shocks
• Prevents premature tire wear related to suspension problems

Installation Notes and Tips

• Verify compatibility with Smart Fortwo before installation
• Inspect mounting points for wear or damage prior to replacement
• Use proper tools to avoid damage to E2 lower and S1 upper mounts
• Follow vehicle manufacturer torque specifications for mounting hardware
• Consider replacing shocks in pairs for balanced suspension performance

Quality Assurance and Warranty

KYB manufactures the Gas-a-just 553393 shock absorber to meet or exceed OEM standards for durability and performance. While specific warranty details are not provided here, KYB typically offers limited warranties covering defects in materials and workmanship. This product is designed to provide consistent damping and long service life when installed and maintained according to manufacturer guidelines.