Dorman 523-621 Suspension Control Arm Bushing - Front Left Lower Rearward

Dorman 523-621 Suspension Control Arm Bushing

Dorman 523-621 is a rubber suspension control arm bushing made for specific front left lower rearward applications. It is precision-engineered and tested to replace the original equipment bushing on select Volvo, Mitsubishi, and Dodge models.

Key Features

• Rubber construction with a black finish
• Mounting type: bushing
• Inside diameter: 12.2 mm
• Bushing 1 dimensions: 12.2 mm inner diameter, 39.3 mm outer diameter, 60 mm width
• Bushing 2 dimensions: 12.2 mm inner diameter, 39.3 mm outer diameter, 66 mm width
• Direct replacement format for OE-style suspension service
• Part number: 523-621

Detailed Description

This suspension control arm bushing is built for front left lower rearward locations and is compatible with 2000-2004 Volvo S40, 2000-2004 Volvo V40, 1993-2002 Mitsubishi Mirage, and 1993-1995 Dodge Colt. Dorman 523-621 uses rubber construction to help restore the control arm’s mounting interface and maintain proper suspension geometry at the bushing point. This part cross-references Delphi TD388W for the same application.

Use Dorman 523-621 when servicing worn suspension bushings on Volvo S40 and Volvo V40 models, or when replacing the front left lower rearward control arm bushing on Mitsubishi Mirage and Dodge Colt vehicles. The part number 523-621 is a practical OE-style replacement for vehicles that require the specified bushing dimensions and mounting style.

What It Helps Address

• Clunking or knocking from the front suspension
• Excessive control arm movement at the mounting point
• Worn rubber that can contribute to steering looseness
• Uneven tire wear related to suspension bushing wear
• Restoration of suspension alignment stability after bushing replacement

Installation Notes and Tips

Install in the front left lower rearward position only on the listed applications. Verify the control arm and mounting bore dimensions before pressing in the bushing, and inspect adjacent suspension components for wear before reassembly. Because mounting hardware is not included, reuse or source any required fasteners separately as needed for the repair.

Quality Assurance

Dorman states that this control arm bushing is precision-engineered and rigorously tested for reliable OE replacement performance on the specified vehicles. The rubber construction and application-specific dimensions support consistent fitment for the listed Volvo, Mitsubishi, and Dodge models.