Delphi TC3641 Suspension Control Arm - Rear Lower

Rear Lower Suspension Control Arm for Toyota and Lexus

Delphi TC3641 is a rear lower suspension control arm built for select Toyota 4Runner, Toyota FJ Cruiser, Lexus GX470, and Lexus GX460 applications. It uses a steel arm with natural rubber bushings and a cataphoresis finish to support OE-style suspension geometry and corrosion resistance.

Key Features

• Steel construction with a straight arm shape
• Natural rubber bushings included; ball joint not included
• Black finish with cataphoresis coating
• Standard replacement grade for rear lower suspension service
• Not adjustable and not pre-greased
• Compatible with rear lower positions on select Toyota and Lexus SUVs

Detailed Description

Delphi TC3641 is engineered as a rear lower suspension control arm for vehicles that need precise rear suspension location and stable handling. Delphi applies OE-level dimensional and material analysis to help the part match factory fit and function, while testing for temperature extremes and salt-spray exposure to support durability in demanding road conditions. This part cross-references Dorman OE Solutions 524-211 for the same application. Delphi TC3641 is a direct-fit replacement choice for rear lower suspension repair on the Toyota 4Runner, Toyota FJ Cruiser, Lexus GX470, and Lexus GX460.

What This Part Helps Address

• Rear suspension looseness or instability
• Clunking or knocking from worn rear control arm bushings
• Uneven rear tire wear caused by suspension geometry issues
• Excessive rear-end movement over bumps and rough roads
• Restoring rear lower arm alignment after bushing wear or corrosion

Installation Notes and Tips

Fits 2003-2022 Toyota 4Runner, rear lower. Fits 2007-2013 Toyota FJ Cruiser, rear lower. Fits 2014 Toyota FJ Cruiser, rear lower, to 07/2014. Fits 2003-2009 Lexus GX470, rear lower. Fits 2010-2022 Lexus GX460, rear lower. Verify the vehicle’s rear lower position before ordering, since Delphi TC3641 is listed for rear left lower, rear lower, and rear right lower applications depending on the vehicle. Mounting hardware is not included. A professional alignment is recommended after installation.

Quality Assurance

Delphi uses OE-focused engineering and validation for aftermarket steering and suspension parts. TC3641 is tested across extreme temperatures and salt-spray exposure, with material and dimensional checks used to support consistent fitment and long-term service performance.