KYB 5510021 Suspension Strut - Front Right

Overview of KYB Gas-a-just Suspension Strut 5510021

The KYB Gas-a-just suspension strut 5510021 is designed specifically for Subaru WRX STI models. This strut offers precise control over vehicle handling by maintaining optimal suspension performance through its engineered dimensions and features.

• Compressed length: 15.15 inches
• Extended length: 18.66 inches
• Stroke length: 3.51 inches
• Upper mount type: 12x1.25
• Bump stop (B-stop) included
• Rebound stop (R-stop) included
• No dust cover or internal rebound spring

Details on KYB Gas-a-just Product Line

The Gas-a-just line from KYB focuses on gas-charged struts that provide consistent damping performance and improved ride quality. This product line is engineered to restore the original handling characteristics of your Subaru WRX STI by using gas pressure to reduce fade and maintain suspension responsiveness over time.

Technical Description of the 5510021 Suspension Strut

This KYB Gas-a-just suspension strut features a compressed length of 15.15 inches and an extended length of 18.66 inches, providing a stroke length of 3.51 inches. The upper mount type is 12x1.25, ensuring proper fitment and secure installation on the Subaru WRX STI. The inclusion of both bump stop (B-stop) and rebound stop (R-stop) components helps protect the suspension system from excessive travel and potential damage. Note that this strut does not include a dust cover or an internal rebound spring, which is typical for this product line.

Common Applications and Problem Solving

• Restores original suspension performance on Subaru WRX STI
• Reduces excessive body roll and improves handling stability
• Addresses worn or leaking factory struts causing poor ride quality
• Prevents suspension damage from over-compression or rebound
• Improves vehicle control during cornering and braking

Installation Notes and Tips

When installing the KYB Gas-a-just suspension strut 5510021 on a Subaru WRX STI, ensure the upper mount type 12x1.25 matches the vehicle’s specifications. Proper torque settings should be followed to secure the strut assembly. Since this strut does not include a dust cover, inspect the surrounding components for wear and replace if necessary. It is recommended to have a professional alignment performed after installation to maintain optimal handling characteristics.

Quality Assurance and Warranty Information

KYB suspension components, including the Gas-a-just strut 5510021, are manufactured to meet or exceed OEM standards. This part undergoes rigorous testing to ensure durability and consistent performance. Warranty coverage details vary by region and retailer, so consult the product documentation or KYB directly for specific warranty terms related to this suspension strut.