KYB 5510030 Suspension Strut - Rear Left

KYB Gas-a-Just Rear Left Strut for Subaru Impreza

The KYB Gas-a-Just 5510030 is a monotube suspension strut built to restore OE-style control on the rear left side of select Subaru Impreza models. It uses separate gas and hydraulic working chambers for quick response, stable handling, and consistent damping during everyday driving.

Compatible with 2005-2007 Subaru Impreza, rear left, this KYB Gas-a-Just strut is a direct-fit suspension replacement for drivers addressing worn ride control or reduced steering response. Part number 5510030 is also referenced for Subaru application 20360 FE912.

Key Features

• Monotube OE replacement strut for factory-style suspension restoration
• High-pressure gas and oil separation for fade-resistant operation
• Floating piston design supports immediate damping response
• Triple chrome plated piston rod helps reduce seal wear
• Higher gas pressure improves steering response and control
• Supports proper operation of vehicle safety systems that rely on suspension performance
• Built with compressed length 19.21, extended length 23.77, and stroke length 4.56

Product Details

KYB Gas-a-Just is the brand’s monotube product line for OE-style replacement on performance-oriented and daily-driven vehicles. This strut is engineered with two separate working chambers: an air-free hydraulic section for damping control and a high-pressure nitrogen gas section for added responsiveness. For the Subaru Impreza, the design helps restore the handling balance and road feel expected from the original suspension setup. Part number 5510030 is a practical choice when replacing a worn rear left strut on 2005-2007 Subaru Impreza models.

What It Helps Fix

• Excessive bouncing after bumps or dips
• Loose or delayed steering response
• Uneven rear suspension control
• Fluid leakage from a worn strut assembly
• Reduced stability during braking and cornering

Installation Notes

Fits 2005-2007 Subaru Impreza, rear left. Replace the suspension strut and coil spring assembly according to the manufacturer’s instructions. Verify upper mount type S1 (12MM) and confirm all suspension components are in serviceable condition before installation. Part number 5510030 should be matched to the vehicle application before ordering.

Quality Assurance

KYB designs Gas-a-Just struts as OE-style monotube replacements for consistent damping and control. The triple chrome plated piston rod is used to help reduce seal wear, and the monotube layout supports fade-resistant performance under changing road conditions. This part cross-references Subaru 20360 FE912 for the same application.