Dorman 528-239 Lateral Arm and Ball Joint Assembly - Rear Lower Forward

Dorman 528-239 Lateral Arm Assembly

Dorman 528-239 is a lateral arm and ball joint assembly built as a standard replacement for the original equipment part on select vehicles. It is engineered for the rear lower forward position on the 2001-2006 Lexus LS430 and includes a pre-installed ball joint for a direct-service suspension repair.

Key Features

• Fits 2001-2006 Lexus LS430, rear lower forward
• Standard replacement lateral arm and ball joint assembly
• Tubular, straight steel construction
• Ball joint installed with tapered stud design
• Bushings included with rubber and steel bushing materials
• Pre-greased and non-greaseable design
• Bolt-on attachment type for service replacement
• Compatible with OE-style suspension repair needs

Detailed Description

This Dorman lateral arm assembly is designed for the rear lower forward suspension location on the Lexus LS430. The tubular steel arm uses a straight shape and standard replacement grade construction to match the original suspension layout, while the installed ball joint and included bushings support a complete repair of the control arm assembly. Dorman 528-239 is a practical choice when replacing worn suspension components on the 2001-2006 Lexus LS430, especially when restoring rear suspension geometry and joint integrity.

This part cross-references Mevotech Supreme CMS861248 for the same application. The Dorman 528-239 part number is also associated with OE-style replacement needs for this Lexus LS430 rear suspension position.

What It Helps Address

• Rear suspension looseness or clunking from worn arm components
• Excessive play from a worn ball joint
• Uneven rear tire wear related to suspension geometry issues
• Noise during bumps or lane changes from degraded bushings
• Handling instability caused by a fatigued lateral arm assembly

Installation Notes and Tips

Verify the rear lower forward position before installation on the 2001-2006 Lexus LS430. Because this assembly uses a bolt-on attachment design, inspect the mounting points, fasteners, and surrounding suspension hardware for wear or corrosion before service. After installation, a wheel alignment is recommended to confirm proper rear suspension geometry.

Quality Assurance

Dorman states that this lateral arm and ball joint assembly is precision-engineered and rigorously tested to provide reliable replacement performance for the original equipment part on specific vehicles. The Dorman 528-239 is built as a standard replacement suspension component for consistent fit and function.