KYB SM5915 Suspension Strut Mount - Front or Front Right

KYB SM5915 Front Strut Mount for Lexus RX

KYB SM5915 is a suspension strut mount for select Lexus RX applications. It replaces worn vibration insulators and bearing components that can add noise, harshness, and steering looseness to the front suspension.

Key Features

• OE-quality replacement strut mount from KYB Mount Components
• Helps isolate road vibration and reduce suspension noise
• Front bearing plate design supports steering pivot function and wheel alignment
• Built for front and front right applications on select Lexus RX models
• Cross-reference part numbers include 480450E020 and 486090E060 for the same application

Application Details

Fits 2021-2022 Lexus RX350, front; fits 2021-2022 Lexus RX350L, front right; and fits 2021-2022 Lexus RX450hL, front. It also fits 2016-2020 Lexus RX350, front, excluding air suspension, plus 2018-2020 Lexus RX350L, front, and 2018-2020 Lexus RX450hL, front. The KYB SM5915 is a direct-fit suspension strut mount for Lexus RX front suspension service.

What It Helps Fix

• Clunking or knocking from a worn upper strut mount
• Excess cabin vibration from hardened mount insulators
• Steering feel changes caused by worn front bearing plates
• Front-end noise over bumps and rough pavement
• Alignment concerns related to worn mount support points

Installation Notes

Verify the vehicle’s suspension type and position before ordering. This part is listed for front and front right locations only, with a note excluding air suspension on 2016-2020 Lexus RX350 applications. Confirm the existing mount and bearing style against the original part number before installation.

Quality Assurance

KYB builds Mount Components as OE-style replacement parts for specific applications, with a focus on restoring suspension function, steering support, and noise control in Lexus RX service work.