KYB SB151 Suspension Strut Bellows - Front or Front Left

KYB Strut Boot SB151 for Lexus and Toyota

KYB SB151 strut boot kits help protect the polished strut shaft and seal area from dirt, dust, sand, salt, and other road debris. This KYB Strut Boots product line is built for front suspension applications on select Lexus RX and Toyota Highlander models, including Lexus RX350, Lexus RX450h, and Toyota Highlander fitments.

Key Features

• Durable plastic bellows covers the strut shaft to block abrasive contaminants
• Helps reduce wear on the shaft, upper seal, and bushing
• Includes a poly foam travel-limiting bumper
• Helps protect the strut from bottoming out and extreme movement damage
• Front suspension fitment for select Lexus RX and Toyota Highlander applications

Detailed Description

The KYB SB151 is a suspension strut bellows kit made to shield exposed strut components from road debris that can accelerate wear over time. By covering the shaft with a durable bellows and adding a foam bumper, this part helps maintain the condition of the strut assembly in front-end suspension service. It is a direct-fit solution for 2021-2022 Lexus RX350 front, 2021-2022 Lexus RX450h front (exc. air suspension), 2016-2020 Lexus RX350 front (exc. air suspension), 2016-2020 Lexus RX450h front (exc. air suspension), and 2017-2019 Toyota Highlander front and front left applications. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

What It Helps Address

• Strut shaft wear caused by dirt and grit
• Seal damage from dust, sand, and salt exposure
• Bushing wear from road contamination
• Bottoming-out impact on the strut assembly
• Damage from excessive suspension travel

Installation Notes and Tips

Verify front suspension fitment before installation, especially on Lexus RX450h models with air suspension exclusions. Match the vehicle year, model, and position exactly to the listed applications for the KYB SB151. Inspect the strut assembly for existing seal, shaft, or bumper damage during service and replace worn components as needed.

Quality Assurance

KYB is a suspension-focused brand known for OE-style replacement components. The SB151 is built to support long-term protection of the strut assembly in everyday driving conditions.