HomeSuspension > Suspension, Springs and Related ComponentsDorman 521-911 Suspension Trailing Arm - Rear Left or Rear Right
Part #: 521-911

Dorman 521-911 Suspension Trailing Arm - Rear Left or Rear Right

Rear Left
39 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
Fitment: Lexus and Toyota, RX350, Highlander, RX330, and RX300
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Durable Suspension Trailing Arm for Lexus and Toyota Vehicles

The Dorman 521-911 suspension trailing arm is engineered to restore proper suspension geometry and improve handling for select Lexus and Toyota models. Constructed from steel with rubber bushings included, this trailing arm is designed to provide reliable performance and durability.

  • Made from high-strength steel for structural integrity
  • Includes rubber bushings to reduce vibration and noise
  • Regular grade type for standard suspension applications
  • Non-adjustable design for direct replacement
  • Compatible with Lexus Highlander, RX300, RX330, RX350, and RX400h models

Product Details and Specifications

The Dorman 521-911 suspension trailing arm is a steel component that plays a critical role in the rear suspension system of compatible Lexus and Toyota vehicles. It comes with pre-installed rubber bushings that help absorb road shocks and minimize noise, contributing to a smoother ride. This part is a regular grade type, meaning it meets OEM specifications without additional adjustability or ball joints. The trailing arm is designed for direct replacement, ensuring proper fit and function without modification.

Compatible Vehicles and Applications

This suspension trailing arm is compatible with the following makes and models: Lexus Highlander, RX300, RX330, RX350, and RX400h. It is intended for use in suspension systems requiring a trailing arm replacement to maintain alignment and handling characteristics.

  • Corrects suspension misalignment issues
  • Reduces excessive tire wear caused by worn trailing arms
  • Eliminates clunking or knocking noises from the rear suspension
  • Restores proper handling and vehicle stability
  • Addresses vibration and harshness related to deteriorated bushings

Installation Notes and Tips

Installation of the Dorman 521-911 suspension trailing arm should be performed by a qualified technician familiar with Lexus and Toyota suspension systems. It is recommended to inspect related suspension components during replacement and perform a wheel alignment afterward to ensure optimal performance. Since this part is non-adjustable and does not include ball joints, no additional adjustments are necessary beyond standard installation procedures.

Quality Assurance and Warranty

Dorman suspension components are manufactured to meet or exceed OEM standards for fit, form, and function. The 521-911 trailing arm undergoes rigorous quality control to ensure durability and reliability. This part includes rubber bushings designed for long service life under normal driving conditions. Warranty coverage details can be obtained from the product documentation or manufacturer.

BrandDorman
Part Number521-911
AdjustableNo
Ball Joint IncludedNo
Ball Joint InstalledNo
Bushing MaterialRubber
Bushings IncludedYes
Grade TypeRegular
MaterialSteel
Package ContentsStrut Rod

This part fits 39 vehicles. Search below:

YearMakeModelDrive TypePositionNotes
2009LexusRX350AWDRear Left
2009LexusRX350AWDRear Right
2008LexusRX350AWDRear Left
2008LexusRX350AWDRear Right
2008LexusRX400hAWDRear
2007LexusRX350AWDRear Left
2007LexusRX350AWDRear Right
2007LexusRX400hAWDRear
2007ToyotaHighlanderAWDRear Left
2007ToyotaHighlanderAWDRear Right
2006LexusRX330AWDRear Left
2006LexusRX330AWDRear Right
2006LexusRX400hAWDRear
2006ToyotaHighlanderAWDRear Left
2006ToyotaHighlanderAWDRear Right
2005LexusRX330AWDRear Left
2005LexusRX330AWDRear Right
2005ToyotaHighlanderAWDRear Left
2005ToyotaHighlanderAWDRear Right
2004LexusRX330AWDRear Left
2004LexusRX330AWDRear Right
2004ToyotaHighlanderAWDRear Left
2004ToyotaHighlanderAWDRear Right
2003LexusRX300Rear Left
2003LexusRX300Rear Right
2003ToyotaHighlanderAWDRear Left
2003ToyotaHighlanderAWDRear Right
2002LexusRX300Rear Left
2002LexusRX300Rear Right
2002ToyotaHighlanderAWDRear Left
2002ToyotaHighlanderAWDRear Right
2001LexusRX300Rear Left
2001LexusRX300Rear Right
2001ToyotaHighlanderAWDRear Left
2001ToyotaHighlanderAWDRear Right
2000LexusRX300Rear Left
2000LexusRX300Rear Right
1999LexusRX300Rear Left
1999LexusRX300Rear Right

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

13CB8011642606700487800E020624.44019CA1851CMS801019RK642182

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.