Westar ST-5973 Coil Spring Insulator - Rear Upper

Overview

Westar ST-5973 is a coil spring insulator for suspension applications that need controlled movement, noise isolation, and secure strut-to-body engagement. It is built for Chrysler and Dodge platforms with rear upper fitment, including Chrysler 300M, Concorde, Intrepid, and LHS applications.

This part number, ST-5973, is a fitment-specific suspension component that supports proper suspension rotation while helping reduce road noise and vibration transfer. For buyers searching for a Chrysler 300M rear upper coil spring insulator or a Dodge Intrepid rear upper suspension insulator, ST-5973 matches the listed applications.

Key Features

• Provides a pivot point that allows the suspension to rotate within correct operating dynamics.
• Helps keep the suspension aligned to support steering response and reduce tire and component wear.
• Locks the strut and body together for secure mounting.
• Noise-dampening design helps isolate road noise and vibration from the cabin.
• Westar construction uses application-specific materials and a protective finish for durability.

Detailed Description

Westar ST-5973 is engineered as a coil spring insulator for rear upper suspension locations on select Chrysler and Dodge vehicles. It serves as a functional interface between suspension components, helping the assembly move correctly while reducing unwanted noise and vibration. The design supports stable suspension geometry, which is important for consistent handling and even tire and component wear. This part number, ST-5973, is listed for 1998-2004 Chrysler Concorde, 1998-2004 Chrysler Intrepid, 1998-2004 Dodge Intrepid, 1999-2004 Chrysler 300M, and 1999-2001 Chrysler LHS rear upper applications.

This part cross-references KYB SM5590 and Monroe Shocks & Struts 905973 for the same application.

What It Helps Address

• Suspension noise transmitted into the vehicle
• Vibration transfer from the road surface
• Improper suspension rotation at the mounting point
• Wear caused by unstable suspension geometry
• Loose or degraded strut-to-body interface

Installation Notes

Install on the listed rear upper applications only. Verify the vehicle year, make, model, and suspension position before installation. Inspect surrounding suspension components for wear or damage during replacement, and confirm the insulator seats correctly in the assembly.

Quality Assurance

Westar states that it uses application-specific materials and a finish intended to improve appearance and extend service life. Part number ST-5973 is built for the listed suspension applications and cross-references established aftermarket part numbers for the same use.