Delphi TC8021 Suspension Control Arm - Rear Right Upper

Rear Right Upper Control Arm for OE-Style Suspension Service

Delphi TC8021 is a steel rear right upper suspension control arm built for direct replacement service on select Lexus GX470 and Toyota 4Runner applications. It uses rubber bushings and a standard replacement design to restore rear suspension geometry and help maintain stable handling.

Key Features

• Steel construction for strength in suspension service
• Rubber bushings included for OE-style ride isolation
• Standard replacement design, non-adjustable
• Rear right upper position
• Ball joint not included
• Delphi part number TC8021

Detailed Description

Delphi TC8021 is engineered for the rear right upper location on 2003-2009 Lexus GX470 and 2003-2006 Toyota 4Runner models. Delphi applies OE-level dimensional and material analysis to support proper fitment between the replacement arm and the original suspension layout. The steel arm measures 14.78 inches and is supplied with rubber bushings to help control vibration and maintain suspension articulation. If you are replacing a worn rear right upper control arm on a Lexus GX470 or Toyota 4Runner, Delphi TC8021 provides a direct-fit service part for the specified application.

This part cross-references Toyota 48710-35060 for the same application.

Common Problems This Part Can Address

• Excessive rear suspension play from worn bushings
• Clunking or knocking from the rear upper control arm area
• Uneven rear tire wear caused by suspension geometry issues
• Loose or unstable rear-end handling
• Alignment concerns after control arm wear

Installation Notes and Tips

Install this control arm in the rear right upper position only. Verify the vehicle application before service, and inspect adjacent suspension components, fasteners, and alignment settings during replacement. Because the ball joint is not included, confirm the existing suspension layout matches the original design before installation.

Quality Assurance

Delphi subjects its steering and suspension components to extreme temperature and corrosion testing, including sub-zero and high-heat exposure plus extended salt-spray testing, to evaluate durability under demanding conditions. The brand also uses dimensional and material analysis to support OE-style fit and compatibility.