Delphi TD4439W Suspension Control Arm Bushing Kit - Front Lower or Front Lower Forward

Delphi TD4439W Front Lower Control Arm Bushing Kit

Restore front suspension stability with the Delphi TD4439W suspension control arm bushing kit. This rubber-to-metal replacement is built for the front lower forward position and is sized for direct service on select Ford, Lincoln, and related truck and SUV applications.

Delphi applies OE-focused dimensional and material analysis to help ensure proper fit and consistent suspension performance. The TD4439W is a standard replacement bushing kit with two bushings finished in black.

Key Features

• Part number: TD4439W
• Suspension control arm bushing kit for the front lower forward position
• Rubber-to-metal construction for controlled suspension movement
• Includes 2 bushings
• Black finish
• Standard replacement, regular grade
• Dimensions: 99.9 mm length, 70.0 mm outside diameter, 69.9 mm height
• Inside diameter: 16.3 mm

Detailed Description

The Delphi TD4439W is a front lower control arm bushing kit engineered for vehicles that use a rubber-to-metal bushing design in the front suspension. It is listed for 1997-2003 Ford F-150, 2004 Ford F-150 Heritage, 1997-1999 Ford F-250, 1997-2002 Ford Expedition, 1998-2002 Lincoln Navigator, and 2002 Lincoln Blackwood in the front lower or front lower forward position, depending on application. This part cross-references MOOG Chassis Products K8764 for the same application.

Delphi’s OE-oriented testing includes exposure to extreme temperatures and extended salt spray, along with dimensional and material checks to support fitment consistency. For buyers searching for a Delphi TD4439W front lower control arm bushing kit for Ford F-150 Heritage or a front lower forward bushing for Lincoln Navigator, this part provides a direct-service replacement option.

Common Problems This Part Can Address

• Front suspension looseness or excess play
• Clunking or knocking from worn control arm bushings
• Uneven steering response caused by deteriorated bushings
• Vibration transfer through the front suspension
• Visible cracking, separation, or wear in the original rubber bushings

Installation Notes and Tips

Verify the vehicle position before ordering, since this kit is listed for front lower and front lower forward applications. Compare the original bushing dimensions, control arm design, and mounting location to confirm the correct service part. Professional installation is recommended because control arm bushings typically require suspension disassembly and proper pressing tools.

Quality Assurance

Delphi uses OE-focused engineering, dimensional analysis, and material validation to support aftermarket fit and performance. The TD4439W is tested for temperature extremes below -40 degrees C and above 120 degrees C, and it is exposed to 720 hours of salt spray during validation.