KYB 551121 Suspension Strut - Front

Overview of KYB Gas-a-just Suspension Strut 551121

The KYB Gas-a-just Suspension Strut 551121 is engineered for reliable performance in select Cadillac, Chevrolet, and GMC trucks and SUVs. Designed to restore original handling and ride quality, this strut is compatible with models such as the Chevrolet Silverado 1500 and Cadillac Escalade.

• Compressed length: 13.26 inches
• Extended length: 17.71 inches
• Stroke length: 4.45 inches
• Lower mount type: E3 (100x128x10)
• Upper mount type: 10x1.25
• Includes R-stop but no dust cover or internal rebound spring

Detailed Product Features and Specifications

The KYB Gas-a-just 551121 suspension strut features a precise compressed length of 13.26 inches and an extended length of 17.71 inches, providing a stroke length of 4.45 inches. The lower mount uses an E3 style with dimensions 100x128x10, while the upper mount is threaded at 10x1.25. This strut includes an R-stop for controlled rebound but does not include a dust cover or internal rebound spring. These specifications ensure compatibility and proper fitment for vehicles such as the GMC Yukon XL 1500 and Chevrolet Tahoe.

About the Gas-a-just Product Line

The KYB Gas-a-just line is designed to offer a direct replacement for original equipment struts with a gas-charged design that maintains consistent damping performance. This product line focuses on restoring vehicle stability and ride comfort by matching the original strut dimensions and mounting configurations, making it suitable for heavy-duty trucks and SUVs like the Cadillac Escalade EXT and Chevrolet Suburban 1500.

Common Applications and Problem Solving

• Restores proper suspension travel and ride height on Cadillac Escalade and GMC Sierra 1500
• Eliminates excessive bouncing and poor handling in Chevrolet Avalanche and Yukon models
• Addresses uneven tire wear caused by worn or damaged struts
• Improves vehicle stability during cornering and braking
• Reduces noise and vibration associated with faulty suspension components

Installation Notes and Tips

Installation of the KYB Gas-a-just 551121 suspension strut requires proper tools and safety precautions. Ensure the vehicle is securely lifted and supported before removing the old strut. Verify the lower and upper mount types match the vehicle’s specifications. It is recommended to replace struts in pairs to maintain balanced handling. After installation, a professional wheel alignment is advised to optimize suspension performance.

Quality Assurance and Warranty

KYB manufactures the Gas-a-just 551121 strut to meet or exceed OEM standards, ensuring durability and consistent performance. While specific warranty details are not provided here, KYB typically offers coverage against defects in materials and workmanship. Refer to KYB’s official documentation for complete warranty information.