What is the purpose of a spring insulator?

A spring insulator acts as a cushion between the coil spring and the vehicle's suspension components. Its main job is to absorb shock and vibration, preventing metal-on-metal contact and reducing noise for a more comfortable ride.

Why do spring insulators need to be replaced?

Over time, the rubber or composite material of spring insulators can harden, crack, or wear down due to constant pressure and exposure to the elements. This degradation leads to increased noise, vibration, and a less effective suspension.

Does this part come with new springs or hardware?

This product is for the KYB Spring Insulator (SM5649) only. It is designed to be installed with your existing coil springs and suspension hardware. You will need to reuse your original components or purchase them separately.

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Specifications

Brand: KYB
Part #: SM5649
UPC: 781552667469

Spring Seat Insulator

Name: Spring Seat Insulator
Brand: KYB
Price: 14.03 USD
Availability: InStock

$14.03

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KYB Spring Insulator Front Lower SM5649. Fits 04-12 Lexus ES330/ES350, Toyota Avalon/Camry/Sienna/Solara. Replaces worn insulators to reduce noise and vibration.

Key Features

Fits 2004-2012 Lexus ES330/ES350, 2004-2012 Toyota Avalon, 2004-2011 Toyota Camry, 2007-2010 Toyota Sienna, and 2005-2008 Toyota Solara.
Replaces worn or damaged front lower spring insulators.
Helps to eliminate vibration and noise caused by old, hardened insulators.
Designed to optimize suspension performance with OE quality replacement components.
Built with design and quality that matches or exceeds Original Equipment specifications.

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Will this fit your vehicle?

Product Details

If you're hearing extra noise or feeling more vibration from your suspension, it might be time to replace the spring insulators. This is the front lower spring insulator from KYB, designed to fit a range of Lexus and Toyota vehicles from the mid-2000s to early 2010s, including models like the Toyota Camry and Lexus ES350. These parts sit between the coil spring and the vehicle's suspension components, acting as a cushion to absorb road shock and prevent metal-on-metal contact.

Over time, the original insulators can harden, crack, or wear out, leading to those unwanted noises and a less comfortable ride. KYB builds these replacements to match the original equipment specifications, ensuring they perform just like the factory parts did when new. By replacing old, worn-out insulators with these well-built ones, you can help restore a quieter and smoother operation to your suspension system.