KYB SM5907 Suspension Strut Mount Kit - Front

KYB Front Strut Mount Kit for Lexus and Toyota

KYB SM5907 is a front suspension strut mount kit for select Lexus RX350, Lexus RX450h, and Toyota Highlander applications. It replaces worn vibration insulators and bearing components that can add noise, harshness, and steering play to the front suspension.

Key Features

• Front suspension strut mount kit for select 2014-2022 applications
• Helps isolate road vibration and reduce suspension noise
• Front bearing plate supports steering pivot function and wheel alignment
• OE-quality replacement component for application-specific fitment
• KYB Mount Components line focuses on suspension mounting and bearing support parts

Detailed Description

KYB SM5907 is built for front suspension service on 2016-2022 Lexus RX350, 2016-2022 Lexus RX450h, and 2014-2019 Toyota Highlander models. As a front strut mount kit, it addresses the upper mounting point of the strut assembly, where worn insulators and bearing surfaces can transmit vibration into the cabin and affect steering feel. This part number, SM5907, is part of KYB Mount Components and is engineered as an OE-style replacement for the listed applications. This part cross-references Toyota/Lexus OE numbers 486090E060 and 4861942010 for the same application.

What It Helps Solve

• Front-end clunking or knocking from worn mount components
• Excess vibration and road noise entering the cabin
• Steering bind or rough steering feel at the strut top
• Alignment instability caused by worn bearing support
• Harsh impact transfer from front suspension bumps

Installation Notes and Tips

• Fits 2016-2022 Lexus RX350, front, except Japan built; mount components
• Fits 2016-2022 Lexus RX450h, front, except air suspension; mount components
• Fits 2014-2019 Toyota Highlander, front; mount and bearing; new part number, available 3rd quarter; mount components
• Inspect the strut assembly, spring seats, and related hardware before reassembly
• Front bearing plates affect steering pivot action, so proper installation and alignment checks are important after service

Quality Assurance

KYB is known for OE-quality suspension replacement parts, and the Mount Components line is built around application-specific fit and front-end support. The SM5907 strut mount kit is made to restore the function of the original mounting and bearing interface on the listed Lexus and Toyota vehicles.