KYB SM5576 Coil Spring Insulator - Front Upper

KYB SM5576 Coil Spring Insulator

KYB SM5576 is a front upper coil spring insulator for select Chrysler and Dodge applications. It is built to replace worn vibration insulators that can create noise and harshness in the suspension, helping restore quieter operation and more consistent spring seating.

For drivers searching for a KYB spring seat and insulator for Chrysler 300M, Concorde, Intrepid, or LHS models, this OE-style replacement is made to match the original application requirements. The KYB Mount Components line focuses on suspension mounting parts that support proper fit and function.

Key Features

• OE-quality replacement coil spring insulator for front upper suspension locations
• Helps reduce squeaks, rattles, and vibration noise from aged insulators
• Built to match or exceed original equipment design and quality
• Designed for select Chrysler and Dodge front suspension applications
• KYB SM5576 is part of the Mount Components product line

Detailed Description

KYB SM5576 is engineered as a suspension spring insulator that sits between the coil spring and its mounting point to help isolate vibration and reduce noise transfer. Over time, hardened or deteriorated insulators can lead to clunks, squeaks, and a less refined ride. This replacement part is intended to restore the original spring interface on vehicles such as the Chrysler 300M, Chrysler Concorde, Chrysler Intrepid, Dodge Intrepid, and Chrysler LHS where the front upper insulator is specified.

This part cross-references Monroe Shocks & Struts 905989 for the same application.

What It Helps Solve

• Squeaking or rattling from worn front suspension spring seats
• Vibration noise transmitted through the coil spring mount
• Hardening, cracking, or deterioration of the original insulator
• Improper spring isolation that can affect ride quality
• Noise complaints after suspension service on the front upper mount area

Installation Notes and Tips

Fits 1999-2004 Chrysler 300M, Front Upper, Exc. Performance Handling Package; Mount Components. Fits 1998-2004 Chrysler Concorde, Front Upper, Mount Components. Fits 1998-2004 Chrysler Intrepid, Front Upper, Mount Components. Fits 1998-2004 Dodge Intrepid, Front Upper, (Exc. Performance Handling Package); Mount Components. Fits 1999-2001 Chrysler LHS, Front Upper, (Exc. Performance Handling Package); Mount Components.

Confirm the vehicle’s suspension configuration before ordering, since some listings exclude the Performance Handling Package. Inspect the surrounding spring seat and mounting surfaces for wear or damage during service so the new insulator seats correctly.

Quality Assurance

KYB positions its Mount Components line as OE-quality suspension replacement parts, with spring seats and insulators designed for application-specific fit and function. SM5576 is built to support the original suspension design on the listed Chrysler and Dodge models.