KYB SM5579 Coil Spring Insulator - Front Lower

Brand	KYB SM5579
Position	Front Lower
Product line	Mount Components
Fits	Chrysler and Dodge · 30 vehicles

OE quality replacement. Designed for each application to match or exceed original equipment.

Noise reduction. Helps eliminate squeaks, rattles, and vibration noises.

Spring insulator. Restores quiet, stable suspension performance.

Cross-references Monroe Shocks & Struts 905988 for the same application. See all 1.

$19.56Free shipping

In stock · usually ships same day before 1pm CST

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KYB SM5579 Coil Spring Insulator

Restore quieter suspension operation with the KYB SM5579 coil spring insulator. This Mount Components part is built to replace worn vibration insulators that can create squeaks, rattles, and harsh road noise in the front lower suspension.

Compatible with select Chrysler 300M, Concorde, Intrepid, Dodge Intrepid, and Chrysler LHS applications, the KYB SM5579 is an OE-quality replacement for drivers addressing noise at the spring seat area.

Key Features

High-quality replacement coil spring insulator for front lower suspension use
Helps reduce squeaks, rattles, and vibration noise from aged insulators
Built to match or exceed original equipment design and quality
Part of KYB Mount Components for suspension service and repair
Part number SM5579 for easy identification and ordering

Product Details

KYB spring seats and insulators are engineered to replace hardened or deteriorated factory parts that can transmit unwanted vibration through the suspension. The SM5579 is designed for applications where the front lower coil spring insulator has worn out, helping the suspension operate more quietly and consistently. This part cross-references Monroe Shocks & Struts 905988 for the same application. For shoppers searching for a Chrysler 300M front lower coil spring insulator or a Dodge Intrepid suspension insulator replacement, SM5579 provides a direct OE-style service part solution.

Common Problems This Part Can Help Address

Squeaking or creaking from the front suspension
Rattling noises caused by worn spring seat material
Excess vibration transferred into the cabin
Noise from hardened or cracked insulators
Poor isolation between the coil spring and suspension mount

Installation Notes and Tips

Install the insulator in the front lower position only on the listed applications. Inspect the surrounding spring seat, strut, and mounting surfaces for wear before reassembly, since damaged adjacent components can continue to create noise. Verify vehicle fitment by year, make, model, and suspension configuration before ordering. Fits 1999-2004 Chrysler 300M, front lower; Fits 1998-2004 Chrysler Concorde, front lower; Fits 1998-2004 Chrysler Intrepid, front lower; Fits 1998-2004 Dodge Intrepid, front lower; Fits 1999-2001 Chrysler LHS, front lower.

Quality Assurance

KYB is known for suspension replacement components that follow OE-style design and application-specific engineering. The SM5579 is built to support consistent fit and function for the listed Chrysler and Dodge front lower applications.

This part fits 30 vehicles

Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

Year	Make	Model	Position	Notes
2004	Chrysler	300M	Front Lower	Exc. Performance Handling Package; Mount Components
2004	Chrysler	Concorde	Front Lower	Mount Components
2004	Chrysler	Intrepid	Front Lower	Mount Components
2004	Dodge	Intrepid	Front Lower	(Exc. Performance Handling Package); Mount Components
2003	Chrysler	300M	Front Lower	Exc. Performance Handling Package; Mount Components
2003	Chrysler	Concorde	Front Lower	Mount Components
2003	Chrysler	Intrepid	Front Lower	Mount Components
2003	Dodge	Intrepid	Front Lower	(Exc. Performance Handling Package); Mount Components
2002	Chrysler	300M	Front Lower	Exc. Performance Handling Package; Mount Components
2002	Chrysler	Concorde	Front Lower	Mount Components
2002	Chrysler	Intrepid	Front Lower	Mount Components
2002	Dodge	Intrepid	Front Lower	(Exc. Performance Handling Package); Mount Components
2001	Chrysler	300M	Front Lower	Exc. Performance Handling Package; Mount Components
2001	Chrysler	Concorde	Front Lower	Mount Components
2001	Chrysler	Intrepid	Front Lower	Mount Components
2001	Chrysler	LHS	Front Lower	(Exc. Performance Handling Package); Mount Components
2001	Dodge	Intrepid	Front Lower	(Exc. Performance Handling Package); Mount Components
2000	Chrysler	300M	Front Lower	Exc. Performance Handling Package; Mount Components
2000	Chrysler	Concorde	Front Lower	Mount Components
2000	Chrysler	Intrepid	Front Lower	Mount Components
2000	Chrysler	LHS	Front Lower	(Exc. Performance Handling Package); Mount Components
2000	Dodge	Intrepid	Front Lower	(Exc. Performance Handling Package); Mount Components
1999	Chrysler	300M	Front Lower	Exc. Performance Handling Package; Mount Components
1999	Chrysler	Concorde	Front Lower	Mount Components
1999	Chrysler	Intrepid	Front Lower	Mount Components
1999	Chrysler	LHS	Front Lower	(Exc. Performance Handling Package); Mount Components
1999	Dodge	Intrepid	Front Lower	(Exc. Performance Handling Package); Mount Components
1998	Chrysler	Concorde	Front Lower	Mount Components
1998	Chrysler	Intrepid	Front Lower	Mount Components
1998	Dodge	Intrepid	Front Lower	(Exc. Performance Handling Package); Mount Components
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Directly replaces or cross-references 1 part number

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.

Monroe Shocks & Struts — 905988