Delphi TC6603 Suspension Control Arm - Front Left Lower Forward

OE-Style Front Left Lower Forward Control Arm

The Delphi TC6603 is a standard replacement suspension control arm for the front left lower forward position on select Lexus IS300 models. Built from steel with rubber bushings included, it is made for direct-fit suspension service where OE-style geometry and material consistency matter.

Fits 2001-2005 Lexus IS300, front left lower forward. Delphi applies OE-level dimensional and material analysis to help ensure proper compatibility with the original suspension layout, and this part is tested across extreme temperatures and salt-spray exposure for durability in demanding road conditions.

• Steel construction for suspension strength and stability
• Rubber bushings included for the front left lower forward position
• Standard replacement control arm for OE-style service
• Non-adjustable design
• Ball joint not included

Key Features

• Part number TC6603 for catalog and fitment lookup
• Fits 2001-2005 Lexus IS300, front left lower forward
• Length: 353.3 mm
• Item grade: standard replacement
• Material: steel with rubber bushing material

Detailed Description

Delphi TC6603 is a suspension control arm engineered for the front left lower forward location on the Lexus IS300. It is built as a regular-grade, non-adjustable replacement with bushings included and no ball joint included, making it a straightforward option for restoring front suspension geometry when the original arm is worn, bent, or noisy. Delphi’s OE-focused manufacturing approach includes dimensional and material analysis to support fitment consistency between the original and replacement part. This part cross-references Beck/Arnley 102-7617 and Dorman - Premium CA64043PR for the same application.

What It Helps Address

• Front-end clunking from worn suspension bushings
• Steering looseness caused by a fatigued control arm
• Uneven tire wear related to suspension geometry issues
• Pulling or instability from a damaged front left lower forward arm
• Restoration of OE-style suspension alignment on Lexus IS300 models

Installation Notes and Tips

Verify the front left lower forward position before installation and compare the removed arm to the new Delphi TC6603 for length and mounting orientation. Because the ball joint is not included, confirm the existing joint condition and replace related wear components as needed during suspension service. After installation, a professional wheel alignment is recommended.

Quality Assurance

Delphi subjects its OE-based steering and suspension components to extreme temperature and salt-spray testing to evaluate durability and corrosion resistance. The brand also uses dimensional and material analysis to support OE-to-aftermarket fit consistency for applications such as the Lexus IS300 front suspension.