Dorman 526-329 Suspension Trailing Arm - Rear Lower Forward

Dorman 526-329 Rear Lower Forward Trailing Arm

Dorman 526-329 is a steel suspension trailing arm built as a direct replacement for the original rear lower forward arm. It is engineered for secure performance and evaluated for predictable handling and a smoother ride on Lexus rear suspension applications.

Key Features

• Direct replacement trailing arm for rear lower forward suspension positions
• Steel construction with black powder-coated finish
• Tubular control arm design for OE-style fit and function
• Includes bushings; ball joint not included
• Bolt-on attachment with 12.2 mm mounting hole diameter
• Standard replacement grade for service repair work
• Compatible with Lexus IS300, IS350, IS500, RC300, RC350, GS350, GS300, GS450h, GS200t, IS200t, RC200t, and IS250 rear suspension applications

Detailed Description

This Dorman 526-329 trailing arm is designed for the rear lower forward position and built from steel with a powder-coated black finish for durable service. The tubular arm design, included bushings, and bolt-on mounting layout support a straightforward replacement of the original suspension component. It is a practical choice for Lexus IS300, IS350, IS500, RC300, RC350, GS350, GS300, GS450h, GS200t, IS200t, RC200t, and IS250 models where rear suspension geometry and handling consistency matter.

This part cross-references Mevotech Supreme CMS861353 and Suspensia X30LA0412 for the same application. The Dorman 526-329 is also referenced for Lexus rear suspension service where OE-style replacement is needed.

What It Helps Fix

• Rear suspension looseness or unstable handling
• Clunking or knocking from worn trailing arm bushings
• Uneven rear suspension movement under load
• Alignment issues caused by a damaged rear lower forward arm
• Excess play in the rear suspension linkage

Installation Notes

Verify the rear lower forward position before installation and confirm fitment by year, make, and model. This arm uses a bolt-on attachment method and is not adjustable. Mounting hardware is not listed as included, so reuse or replacement hardware should be confirmed during service. Professional alignment is recommended after suspension component replacement.

Quality Assurance

Dorman designs this trailing arm as a direct replacement part and subjects it to rigorous evaluation for secure performance, smooth ride quality, and predictable handling. Part number 526-329 is built to standard replacement specifications for Lexus rear suspension repair.