Delphi TD5539W Suspension Stabilizer Bar Bushing Kit - Rear To Frame

Delphi TD5539W Rear Stabilizer Bar Bushing Kit

Restore rear sway bar support with the Delphi TD5539W suspension stabilizer bar bushing kit. This standard replacement uses rubber construction and OE-focused dimensional analysis to help maintain proper fit on the rear-to-frame mounting point.

Compatible with 2005-2010 Cadillac STS rear-to-frame applications, including 2005-2009 Cadillac STS models with a 22mm diameter sway bar. The Delphi TD5539W is built for drivers replacing worn stabilizer bushings on the Cadillac STS platform.

Key Features

• Brand: Delphi
• Part number: TD5539W
• Suspension stabilizer bar bushing kit for rear-to-frame mounting
• Rubber material with black finish
• Inside diameter: 0.87 in. / 22.0 mm
• Width: 2.2 in. / 56.0 mm
• Height: 1.42 in. / 36.0 mm
• Standard replacement, regular grade
• No grease fitting included
• No mounting hardware included

Detailed Description

Delphi TD5539W is a rear stabilizer bar bushing kit engineered for OE-style replacement on the Cadillac STS. Delphi applies OE dimensional and material analysis to support proper compatibility between the original suspension layout and the aftermarket part. The rubber bushing construction is intended for rear-to-frame installation and matches the 22 mm sway bar application listed for 2005-2009 Cadillac STS models, while also covering the 2010 Cadillac STS rear-to-frame fitment.

This part cross-references MOOG Chassis Products K201546 and Mevotech Supreme MS504319 for the same application. The Delphi TD5539W part number is also a useful reference when searching for a rear sway bar bushing kit for Cadillac STS suspension service.

What It Helps Address

• Clunking or rattling from worn rear stabilizer bushings
• Excessive sway bar movement at the rear frame mount
• Loose or degraded rubber at the stabilizer bar contact point
• Suspension noise during cornering or uneven-road driving
• Loss of consistent rear suspension support on Cadillac STS models

Installation Notes and Tips

Verify rear-to-frame placement and confirm the sway bar diameter before installation. This Delphi TD5539W bushing kit does not include grease fittings or mounting hardware, so reuse or source any required related components separately. Clean the mounting surface and inspect the sway bar for wear before installing the new bushings.

Quality Assurance

Delphi subjects steering and suspension components to extreme temperature testing below -40 degrees C and above 120 degrees C, along with 720 hours of salt spray exposure. These validation steps support OE-level durability expectations for the TD5539W in everyday suspension service.