KYB Coil Spring Insulator P/N:SM5648

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$20.99
MPN: SM5648
UPC: 781552667445
Item Package Quantity: 1
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KYB Coil Spring Insulator P/N:SM5648
KYB Coil Spring Insulator P/N:SM5648
$20.99

Cushion the front lower coil spring and take the harshness out of a noisy ride with the KYB coil spring insulator (SM5648). It installs as a direct-fit replacement for the listed applications, including the 1999-2000 Lexus RX300, 2002-2003 Lexus ES300, 2002-2003 Toyota Camry, and 2004-2006 Toyota Sienna. The insulator seats between the end of the coil spring and the spring seat at the front lower suspension position, where it cushions the spring and helps isolate the vibration and noise that transfer through a hardened, worn-out original.

KYB spring seats and insulators are designed to replace the tired components that cause squeaks, rattles, and vibration once the factory insulator hardens with age. Each is built for a specific application to help restore proper suspension isolation.

  • Front lower fit: installs at the front lower coil spring seat for the listed vehicles.
  • Quieter operation: helps reduce squeaks, rattles, and vibration noise caused by an old, hardened insulator.
  • Application-specific: designed as a replacement matched to each listed vehicle.
  • OE-level build: engineered to match or surpass the original part in design and quality.

Frequently Asked Questions

What is the KYB coil spring insulator SM5648?

It is a front lower coil spring insulator that seats between the coil spring and the spring seat, cushioning the spring and helping isolate suspension vibration and noise.

Which vehicles does the SM5648 fit?

It is a direct-fit replacement for the 1999-2000 Lexus RX300, 2002-2003 Lexus ES300, 2002-2003 Toyota Camry, and 2004-2006 Toyota Sienna. See the Buyer's Guide tab for engine details.

Where is this insulator located?

It installs at the front lower coil spring seat, between the end of the coil spring and its seat in the suspension.

What are signs the insulator may need replacing?

If the original has hardened or worn, you may notice squeaks, rattles, or added vibration noise from the suspension. Diagnose the source before replacing.

How does this compare to the original part?

KYB designed it as an application-specific replacement built to match or surpass the original equipment part in design and quality.