KYB 5510038 Suspension Strut - Front Left

KYB Gas-a-just Front Left Strut for Impreza

The KYB Gas-a-just 5510038 is a monotube suspension strut built as an OE-style replacement for the front left position. It is engineered to restore the original control and handling expected from the Subaru Impreza platform, including 2008-2014 Subaru Impreza front left applications.

Key Features

• Monotube OEM replacement strut for precise suspension response
• High-pressure gas and oil separation for fade-resistant operation
• Triple chrome plated piston rod helps reduce seal wear and fluid leakage
• Higher gas pressure supports quicker steering response
• Helps maintain proper operation of electronic safety systems that rely on suspension performance
• Recommended with KYB strut mount SM5664 to reduce noise and vibration
• Use KYB strut boot SB123 to help protect the strut from dirt, debris, and salt

Product Details

KYB Gas-a-just is the brand’s monotube performance-oriented line, using separate working chambers for hydraulic control and high-pressure nitrogen gas. That design gives the strut responsive damping during normal driving while adding immediate support when road conditions or steering inputs demand it. This KYB 5510038 strut is a direct-fit suspension service part for the front left side on 2008-2014 Subaru Impreza models, and it is also referenced for Subaru OE part numbers 20310FG510, 20310FG550, 20310FG570, and 20310FG590.

What It Helps Address

• Excessive bounce or reduced damping control
• Fluid leakage from a worn strut seal
• Slow steering response or loose front-end feel
• Noise and vibration from worn upper mounting components
• Reduced suspension consistency that can affect vehicle stability systems

Installation Notes

Fits 2008-2014 Subaru Impreza, front left. Replace the suspension strut and coil spring assembly according to the manufacturer’s instructions. For reduced noise and vibration, KYB recommends replacing the strut mount at the same time. Inspect the strut boot and surrounding suspension components before installation. This part cross-references Subaru OE numbers 20310FG510 and 20310FG550 for the same application.

Quality Assurance

KYB is an OE suspension supplier, and the Gas-a-just design is built to restore factory-style control, response, and ride consistency for the Subaru Impreza platform. Part number 5510038 is engineered as a monotube replacement strut for dependable service in daily driving conditions.