Keep your engine cranking only when the transmission is safely in Park or Neutral with the Standard Ignition Neutral Safety Switch NS-493. This direct-fit replacement is a plug-in switch for the listed applications, including the 2000-2006 Nissan Sentra, 2001-2003 Nissan Maxima, 2002-2005 and 2007-2010 Nissan Altima, 2004 Infiniti G35, 2009 Nissan 350Z, 2009-2014 Nissan 370Z, 2009-2020 Nissan GT-R, and 2010 Infiniti G37.
Signs the original switch may need replacing include no-crank in Park while the engine cranks in Neutral (or vice-versa), or intermittent starting. If a failed neutral safety switch is the cause, this replaces it — diagnose the no-start condition first, since other components can produce similar symptoms.
Interchange: S41258 · JA4464 · NS6711 · 320066J000 · 320066J00A · Manufacturer part number NS-493 (also NS493)
This part cross-references / interchanges with the following part numbers:
What does the Neutral Safety Switch NS-493 do?
It signals the starting circuit so the engine cranks only when the transmission is in Park or Neutral, helping prevent a start in gear.
Which vehicles does the NS-493 fit?
It's a direct-fit replacement for the listed applications, including the 2000-2006 Nissan Sentra, 2002-2005 and 2007-2010 Nissan Altima, and 2009-2020 Nissan GT-R. See the Buyer's Guide tab for the full list.
What numbers does this switch interchange with?
It replaces S41258, JA4464, NS6711, 320066J000, and 320066J00A. The manufacturer part number is NS-493.
What are signs my neutral safety switch may be failing?
A no-crank in Park while it cranks in Neutral (or vice-versa), or intermittent starting. Diagnose the no-start first, since other parts can cause similar symptoms.
Is this a direct-fit replacement?
Yes. It installs in place of the original neutral safety switch on the listed applications to restore proper switch operation.
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.
