KYB Coil Spring Insulator P/N:SM5440

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$18.99
MPN: SM5440
UPC: 781552954408
Item Package Quantity: 1
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KYB Coil Spring Insulator P/N:SM5440
KYB Coil Spring Insulator P/N:SM5440
$18.99

Quiet a rattling, buzzing rear suspension with the KYB coil spring insulator SM5440, a direct-fit replacement for the rear lower spring seat position on the 2000-2013 Chevrolet Impala, 2000-2007 Chevrolet Monte Carlo, 1997-2008 Pontiac Grand Prix, 1997-2005 Buick Century and 1998-2002 Oldsmobile Intrigue. It cushions the coil spring against the suspension seat, isolating the metal-to-metal contact that produces squeaks, rattles and road-borne vibration as the original insulator ages and hardens.

  • Reduces noise: helps reduce the squeaks, rattles and vibration noises caused by old, hardened insulators.
  • Application-specific: an OE-quality replacement component designed for each listed application.
  • KYB quality: built with design and quality that matches or exceeds original equipment.
  • Correct location: serves the rear lower spring seat position.

If a worn, cracked or compressed rear insulator is the source of your noise, this replaces it so the coil spring seats properly again. See the Buyer's Guide tab for the full engine-level fitment.

Interchange: 10221915 · 10286793 · 904941

This part cross-references / interchanges with the following part numbers:

10221915, 10286793, 904941

Frequently Asked Questions

What is the KYB coil spring insulator SM5440?

It is a rear lower spring seat insulator that cushions the coil spring against the suspension seat, isolating metal-to-metal contact to reduce squeaks, rattles and vibration noise.

Which vehicles does SM5440 fit?

It is a direct-fit replacement for the 2000-2013 Chevrolet Impala, 2000-2007 Chevrolet Monte Carlo, 1997-2008 Pontiac Grand Prix, 1997-2005 Buick Century and 1998-2002 Oldsmobile Intrigue. See the Buyer's Guide tab for details.

What position does this insulator serve?

It serves the rear lower spring seat position on the listed applications.

Why is my rear suspension squeaking or rattling?

An old, hardened or cracked spring insulator can allow the coil spring to contact metal, causing squeaks, rattles and vibration. If that insulator is the cause, replacing it addresses the noise.

What numbers does SM5440 interchange with?

It cross-references 10221915, 10286793 and 904941. Confirm fitment for your specific vehicle before ordering.