KYB SM5778 Suspension Strut Mount - Rear

KYB SM5778 Rear Strut Mount for Subaru Tribeca

KYB SM5778 is a rear suspension strut mount for select Subaru Tribeca and Subaru B9 Tribeca applications. It replaces worn mount components that can transmit vibration, noise, and harshness into the cabin while helping restore proper suspension feel.

Part of KYB Mount Components, this strut mount is built as an OE-quality replacement for the specific application. For Subaru Tribeca rear suspension service, KYB SM5778 supports smoother operation and more consistent ride control.

Key Features

• OE-quality replacement strut mount for the listed rear applications
• Superior rubber helps reduce noise, vibration, and harshness
• Mount bearing design supports smoother steering response and front-end alignment retention where applicable
• Matched-grade studs and nuts for application-specific service
• Engineered to optimize suspension performance for the vehicle

Product Details

KYB Mount Components are designed around the needs of each application, and SM5778 follows that approach for rear suspension service on the Subaru Tribeca and Subaru B9 Tribeca. Worn strut mounts can harden over time, allowing road impacts and suspension movement to create extra cabin noise and a less controlled ride. Replacing the mount with KYB SM5778 helps restore the isolation and support expected from the original suspension design. This part cross-references Monroe Shocks & Struts 908918 for the same application.

What It Helps Fix

• Clunking or knocking from the rear suspension
• Excess vibration transferred into the cabin
• Harsh ride feel from deteriorated mount insulators
• Reduced suspension isolation over bumps and rough pavement
• Steering or alignment concerns related to worn mount components where applicable

Installation Notes and Tips

Fits 2008-2014 Subaru Tribeca, rear. Fits 2006-2007 Subaru B9 Tribeca, rear. Confirm the vehicle’s rear suspension configuration before ordering and compare the original mount to KYB SM5778 during service. Because strut mount replacement affects suspension geometry and ride quality, professional installation and a post-service alignment check are recommended.

Quality Assurance

KYB has a long-standing reputation for OE-style suspension components, and the Mount Components line is focused on application-specific replacement parts that match the vehicle’s original design intent. KYB SM5778 is built to support consistent fit and suspension performance for the listed Subaru applications.