Front Upper Coil Spring Insulator for 1997-2003 Ford F-150 & More - Delphi TD4659W

Cushion the coil spring and help quiet your suspension with the Delphi Coil Spring Insulator TD4659W, a front upper insulator that seats between the coil spring and the spring seat. It fits many vehicles, among them the 1997-2003 Ford F-150, 1997-1999 Ford F-250 and 1997-2002 Ford Expedition — see the "Vehicles it fits" section for the full list and engine-level fitment.

Delphi builds on OE experience across its aftermarket steering portfolio, testing parts below -40°C and above 120°C plus 720 hours of salt-spray exposure, with dimensional and material analysis for close OE compatibility.

• Protects the hardware: helps shield the spring and spring seat from damage.
• Reduces noise: helps dampen suspension noise at the spring seat.
• Keeps grit out: helps keep dust away from the seating surface.
• Direct-fit replacement: a reliable swap for the worn original on the listed applications.

Signs the original insulator may need replacing include creaking or clunking from the front spring seat, a cracked or crumbled cushion, and metal-on-metal contact between the spring and seat.

Interchange: F65Z-5415-AA
F65Z5415AA · 537367 · F75Z5415AA · CSI85246 · CSI85246PR · K160063 · K9703 · MS400159