KYB SM5987 Suspension Strut Mount Kit - Front

KYB SM5987 Strut Mount Kit

KYB SM5987 is a front suspension strut mount kit for select BMW X3 and BMW X4 models. It replaces worn mount components that can transmit vibration, noise, and harshness into the cabin while helping restore proper steering response.

Key Features

• Front suspension strut mount kit for OE-style replacement
• Reduces vibration and road noise from hardened mount insulators
• Front bearing plate supports steering pivot function and wheel alignment
• Built for select BMW X3 and BMW X4 front applications
• KYB Mount Components line for suspension service

Detailed Description

KYB SM5987 is part of KYB’s Mount Components line, which focuses on replacing worn strut mount parts with application-specific OE-quality components. On the front suspension, the mount and bearing plate play an important role in isolating road impact, supporting vehicle weight, and allowing the strut to pivot during steering. For 2018-2022 BMW X3 front and 2019-2022 BMW X4 front applications, this kit addresses the wear that can lead to clunks, vibration, and imprecise steering feel. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

What It Helps Fix

• Clunking or knocking from the front suspension
• Excess vibration transferred into the cabin
• Noise caused by hardened or worn strut mount insulators
• Loose or inconsistent steering response
• Front-end alignment concerns related to worn mount and bearing parts

Installation Notes and Tips

Fits 2018-2022 BMW X3, front. Fits 2019-2022 BMW X4, front. Replace worn mount components during strut service and inspect the front bearing plate, spring seat, and surrounding suspension hardware for wear before reassembly. Verify the part number SM5987 against the vehicle’s front suspension configuration before installation.

Quality Assurance

KYB is known for OE-quality suspension replacement parts, and the SM5987 strut mount kit is built to match the needs of the listed BMW applications. KYB’s Mount Components line is engineered to restore proper suspension function with application-specific fitment.