Delphi TD4663W Coil Spring Insulator - Rear

Delphi Rear Coil Spring Insulator TD4663W

Delphi TD4663W is a rear coil spring insulator made from black rubber for specific Ford applications. It is built as a standard replacement part with OE-focused dimensional and material analysis for proper spring seating and fit.

Key Features

• Black rubber construction for rear suspension use
• Specific fit design for accurate placement
• Round shape with 39.5 inside diameter
• 136.0 outside diameter, 136.0 width, and 34.5 thickness
• Standard replacement grade for suspension service
• Delphi TD4663W is engineered for rear coil spring applications

Application Details

Compatible with rear suspension service on Ford Freestar, Ford Freestyle, and Ford Windstar models. Fits 2004-2007 Ford Freestar, Rear; Fits 2005-2007 Ford Freestyle, Rear; Fits 1995-2003 Ford Windstar, Rear. This part cross-references Ford F58Z5536A for the same application.

What It Helps Address

• Noise from worn or hardened rear spring isolators
• Metal-to-metal contact at the coil spring seat
• Improper spring positioning in the rear suspension
• Vibration transfer through deteriorated rubber insulators
• Suspension service needs on Ford Freestar, Freestyle, and Windstar

Installation Notes

Install in the rear suspension at the coil spring seat and verify the insulator matches the spring and perch dimensions before assembly. Because this is a specific-fit part, confirm vehicle year, model, and rear position against the listed applications for Ford Freestar, Ford Freestyle, and Ford Windstar. Delphi TD4663W should be checked for correct orientation and seating during suspension reassembly.

Quality Assurance

Delphi applies OE-level dimensional and material analysis to its aftermarket suspension parts and subjects components to temperature extremes and salt-spray exposure testing to evaluate durability and fit consistency.