Dorman 528-009 Suspension Trailing Arm - Rear Left

Dorman 528-009 Rear Left Trailing Arm

Dorman 528-009 is a steel suspension trailing arm engineered as a direct replacement for the original rear left component. It is built for the Toyota Highlander and Lexus RX platform, with fitment for select rear left applications on the RX350, RX350L, RX450h, and RX450hL.

Key Features

• Direct replacement trailing arm for rear left suspension service
• Steel construction with a coated finish for corrosion resistance
• Black bushings included with steel and rubber bushing material
• Bolt-on attachment type for OE-style mounting
• Stamped control arm design with no ball joint installed
• No grease fitting, no pre-greasing, and no mounting hardware included
• Standard replacement grade for suspension repair

Fitment Details

• Fits 2014-2024 Toyota Highlander, rear left.
• Fits 2010-2022 Lexus RX350, rear left.
• Fits 2018-2022 Lexus RX350L, rear left.
• Fits 2010-2022 Lexus RX450h, rear left.
• Fits 2018-2022 Lexus RX450hL, rear left.

Detailed Description

This Dorman trailing arm, part number 528-009, is designed to restore the rear suspension link on select Toyota Highlander and Lexus RX models. The steel body, coated finish, and included bushings support stable suspension geometry, helping maintain predictable handling and a smooth ride. It is a bolt-on, standard replacement part made for rear left installation on the listed applications.

This part cross-references MOOG Chassis Products RK643155 for the same application.

What It Helps Address

• Rear suspension clunking or looseness from a worn trailing arm
• Uneven handling caused by degraded suspension bushings
• Excessive rear-end movement over bumps or during braking
• Suspension alignment issues related to worn rear control hardware
• Noise from cracked or fatigued OE trailing arm components

Installation Notes and Tips

Verify rear left fitment by year, model, and suspension configuration before installation. Because this trailing arm is bolt-on and does not include mounting hardware, reuse or replace fasteners as required by the vehicle service procedure. After installation, inspect rear suspension alignment and confirm all mounting points are torqued to specification.

Quality Assurance

Dorman designs this trailing arm as a direct OE-style replacement and subjects it to rigorous evaluation for secure performance, smooth ride quality, and predictable handling. Part number 528-009 is built to meet standard replacement needs for the listed Toyota Highlander and Lexus RX applications.