Westar ST-7948 Coil Spring Insulator - Front Upper

Coil Spring Insulator Overview

Westar ST-7948 is a coil spring insulator for suspension service on select Ford, Lincoln, and Mercury applications. It is built to help isolate noise and vibration while supporting proper suspension movement.

Key Features

• Noise-dampening design helps reduce road vibration transfer into the cabin.
• Supports suspension rotation to maintain correct movement and steering response.
• Helps keep the strut and body secured together during operation.
• Made with materials selected for the intended application.
• Finished to help improve appearance and extend service life.

Detailed Description

This Westar coil spring insulator is engineered for front upper suspension service on the Ford Edge, Ford Mustang, Lincoln MKX, Ford Five Hundred, Ford Freestyle, and Mercury Montego. Part number ST-7948 is a direct-fit style replacement for applications that need a suspension isolator to reduce noise, control vibration, and support proper strut movement. If you are replacing worn suspension components on a Ford Mustang or Lincoln MKX, ST-7948 provides a practical service part for restoring normal ride quality and suspension function.

This part cross-references Anchor 707948 and Monroe Shocks & Struts 907948 for the same application.

What It Helps Address

• Suspension noise from worn isolator material.
• Road vibration transmitted into the vehicle.
• Loose or inconsistent strut-to-body support.
• Reduced steering precision caused by worn suspension isolation parts.
• Premature wear related to improper suspension movement.

Installation Notes and Tips

Verify fitment by year, make, model, and front upper position before installation. Inspect the surrounding suspension components for wear, damage, or corrosion while the assembly is apart. Replace the insulator when the original part is cracked, compressed, or no longer isolating noise effectively.

Quality Assurance

Westar uses application-specific materials and a protective finish intended to support service life and consistent fit. Part number ST-7948 is built as a suspension service replacement for the listed applications.