Delphi TD4225W Suspension Control Arm Bushing - Rear At Knuckle (Upper)

Delphi Rear Control Arm Bushing TD4225W

Delphi TD4225W is a suspension control arm bushing built for rear at knuckle upper applications. It uses a rubber-to-metal construction and OE-focused dimensional analysis to support proper fit on select Cadillac models, including Cadillac Eldorado, Cadillac DeVille, Cadillac Seville, and Cadillac Allante.

Key Features

• Rubber-to-metal construction for suspension isolation and control
• Standard replacement bushing for rear at knuckle (upper) locations
• Length: 2.12 in.
• Inside diameter: 0.48 in.
• Outside diameter: 1.515 in.
• OE-oriented material and dimensional analysis for fit consistency
• Tested for temperature extremes below -40 C and above 120 C
• Exposed to 720 hours of salt spray testing

Detailed Description

The Delphi TD4225W suspension control arm bushing is engineered for rear at knuckle upper mounting points and is a direct-fit style replacement for select Cadillac suspension applications. Its rubber-to-metal design helps maintain suspension geometry while isolating road vibration, and its standard replacement grade makes it a practical choice for restoring worn bushing performance. This part cross-references Dorman OE Solutions 905-504 for the same application.

Compatible With Cadillac Eldorado rear at knuckle (upper), Cadillac DeVille rear at knuckle (upper), Cadillac Seville rear at knuckle (upper), and Cadillac Allante rear at knuckle (upper). The Delphi TD4225W part number is also a useful search term when sourcing a rear control arm bushing for these Cadillac models.

What It Helps Address

• Excessive suspension play at the rear knuckle upper control arm location
• Clunking or knocking noises from worn bushings
• Uneven tire wear caused by loosened suspension alignment
• Reduced steering and handling precision from deteriorated rubber
• Vibration transfer through the rear suspension

Installation Notes and Tips

Verify the rear at knuckle upper position before ordering, since this bushing is application-specific. Compare the original bushing dimensions and mounting location to the TD4225W measurements for proper replacement on Cadillac Eldorado, DeVille, Seville, and Allante models. Professional installation and a suspension alignment are recommended after replacement.

Quality Assurance

Delphi applies OE-focused testing and material analysis to its aftermarket steering and suspension parts. The TD4225W is evaluated for temperature resistance and corrosion exposure to support consistent performance in demanding driving conditions.