KYB Coil Spring Insulator P/N:SM5821

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$10.99

MPN: SM5821

UPC: 781552765257

Item Package Quantity: 1

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KYB Coil Spring Insulator P/N:SM5821

$10.99

Description

Silence the squeaks and cushion your coil spring with the KYB coil spring insulator SM5821. This front lower spring seat insulator installs as a direct-fit replacement for a wide range of Nissan and Infiniti models, including the 2007-2018 Nissan Altima, 2009-2024 Nissan Murano and 2014-2020 Infiniti QX60 — see the Buyer's Guide tab for the full list.

Also known as a spring seat insulator, it seats between the coil spring and the front lower spring seat, isolating the two so road-induced noise and vibration are dampened before they reach the body.

Cushions the coil spring: positioned between the spring and the front lower seat to prevent metal-to-metal contact and reduce noise and vibration.
Application-specific design: built as an OE-quality replacement designed for each listed vehicle for a proper application-specific fit.
Helps quiet the ride: old, hardened insulators let the spring transmit squeaks and harshness; if a worn insulator is the cause of the noise, this fresh piece addresses it.

Fits the 2007-2018 Nissan Altima, 2009-2014 and 2016-2023 Nissan Maxima, 2013-2020 and 2022-2023 Nissan Pathfinder, 2009-2024 Nissan Murano, 2011-2017 Nissan Quest, 2013 Infiniti JX35 and 2014-2020 Infiniti QX60. Confirm your vehicle in the Buyer's Guide tab before ordering.

Manufacturer's Description

Product Specs

Buyer's Guide

Interchange Part Numbers

Frequently Asked Questions

What does the KYB coil spring insulator SM5821 do?

It is a cushioning pad that seats between the coil spring and the front lower spring seat, isolating the spring to prevent metal-to-metal contact and reduce noise and vibration transmitted into the vehicle.

Which vehicles does it fit?

Listed fitments include the 2007-2018 Nissan Altima, 2009-2024 Nissan Murano, 2011-2017 Nissan Quest, 2013 Infiniti JX35 and 2014-2020 Infiniti QX60. See the Buyer's Guide tab for the full list.

Where is this insulator located?

This is a front lower coil spring insulator, seating at the lower end of the front coil spring against its spring seat on the listed applications.

What are the signs mine needs replacing?

Squeaking or creaking from the front suspension, clunking noises, or a visibly cracked, hardened or crumbling insulator can be signs it may need to be replaced.

Do I need to replace the coil spring too?

Not necessarily. The insulator is a separate cushioning component, so if a hardened or damaged insulator is the source of your noise, replacing it addresses that without replacing the spring.