KYB SR4490 Suspension Strut and Coil Spring Assembly - Rear

KYB Strut-Plus Rear Strut Assembly

The KYB Strut-Plus SR4490 is a rear suspension strut and coil spring assembly for the 2005-2009 Subaru Outback. It is engineered to restore ride height, handling response, and vehicle stability with an exact-fit, pre-assembled design.

Built around KYB’s OE-restoring strut design, this assembly combines a KYB Excel-G strut with a high-carbon steel coil spring developed around vehicle-specific corner weights. The result is a direct replacement for the rear suspension strut and coil spring assembly on the Subaru Outback, with fitment engineered for professional installation and consistent suspension geometry.

Key Features

• Fits 2005-2009 Subaru Outback, rear
• OE-style replacement choice for Asian vehicles
• Includes a KYB Excel-G strut with application-specific damping valves
• High-carbon steel coil spring helps restore OE ride height
• Stronger steel outer shell for added durability
• Pre-assembled for exact fitment and professional results
• Engineered to support vehicles with electronic safety systems such as ESC and ABS
• Assembled in the USA
• Recipient of a 2018 import aftermarket industry award

Detailed Description

KYB Strut-Plus SR4490 is designed for drivers replacing a worn rear suspension strut and coil spring assembly on a 2005-2009 Subaru Outback. KYB builds this assembly from an OE-restoring strut and a spring matched to vehicle attributes and corner weights, helping return the rear suspension to factory ride-height targets and predictable road control. This part cross-references Monroe Shocks & Struts (e.g., 172567, 272567) for the same application.

For shoppers searching for a rear strut assembly for 2005 2006 2007 2008 2009 Subaru Outback, SR4490 provides a direct-fit suspension solution from a brand known for OE supply experience. The KYB Strut-Plus line focuses on complete, application-specific assemblies that simplify replacement while maintaining the original suspension layout.

What It Helps Address

• Rear-end sag from a weakened coil spring
• Excessive bouncing or poor damping control
• Uneven ride height at the rear of the Subaru Outback
• Loose or unstable handling over bumps and corners
• Suspension wear that affects steering and stability response

Installation Notes

Fits 2005-2009 Subaru Outback, rear. Replace the suspension strut and coil spring assembly according to the manufacturer’s instructions. Verify rear suspension orientation and inspect related mounting points before installation. Because this is a pre-assembled strut and spring unit, it is intended to streamline replacement compared with rebuilding the assembly from separate components.

Quality Assurance

KYB manufactures this assembly as part of its Strut-Plus line, using OE-focused engineering and application-specific damping calibration. The design is intended to restore suspension control and maintain proper ride height on the Subaru Outback platform while supporting systems that rely on stable chassis behavior, including ESC and ABS.