Dorman - OE Solutions Suspension Knuckle Bushing P/N:523-006
Keep the rear knuckle properly located and cushioned with the Dorman suspension knuckle bushing 523-304. This direct-fit replacement installs in the rear left upper and rear right upper position and fits many Nissan and Infiniti vehicles, including the 2004-2008 Nissan Maxima, 2009-2021 Nissan 370Z and 2003-2009 Nissan 350Z — see the "Vehicles it fits" section for the full list of applications.
It cushions and locates the knuckle connection, allowing controlled suspension movement while helping limit noise and vibration. If a worn or deteriorated original bushing is behind rear-end clunks or imprecise handling, this replaces it.
Sold individually; replacing both sides together as a matched set is recommended.
Interchange: K202017 · 56219AL500
This part cross-references / interchanges with the following part numbers:
What does the Dorman knuckle bushing 523-304 do?
It cushions and locates the knuckle connection, allowing controlled suspension movement while helping reduce noise and vibration transferred through the rear suspension.
Where does the 523-304 install?
It is cataloged for the rear left upper and rear right upper position on the listed applications.
Do I need to replace both sides at once?
This bushing is sold individually. Because it services both sides, replacing left and right together as a matched set is recommended for balanced, even suspension feel.
Which vehicles does this bushing fit?
It fits many vehicles, among them the 2004-2008 Nissan Maxima, 2009-2021 Nissan 370Z and 2003-2009 Nissan 350Z. See the "Vehicles it fits" section for the full list.
What are signs this bushing may need replacing?
Rear-end clunks or knocking over bumps, added vibration, and looser or less precise handling can be signs a worn bushing may need replacing. Diagnose the cause before replacing.
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WARNING: These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.