Keep the starter cranking only when it's safe to do so with the Standard Ignition Neutral Safety Switch NS-99. This switch is a direct-fit replacement for the 1995-1998 Nissan 200SX, the 1991-1999 Nissan Sentra, and the Nissan Tsuru in both the 1991-1993 and 1995-2012 model runs, dropping in for the original switch on those applications.
A neutral safety switch tells the starting system where the transmission selector is, allowing the engine to crank only when the transmission is in Park or Neutral. When the original switch wears out, it can leave you with a no-start even though the selector is in the right position, or an intermittent crank as the internal contacts age.
- Start-safety interlock: permits starter engagement only with the transmission in Park or Neutral.
- Direct-fit installation: replaces the original switch on the listed Nissan applications.
- Signs it may need replacing: the engine cranks while in gear, or won't crank at all in Park or Neutral.
If a failed neutral safety switch is the cause of your starting trouble, this replaces it; diagnose the circuit first, since a no-start can have other causes.
Interchange: S26106 · JA4006 · NS5599 · 3191831X08 · 3191831X12
Manufacturer part number NS-99.
This part cross-references / interchanges with the following part numbers:
Frequently Asked Questions
What does the Standard Ignition NS-99 neutral safety switch do?
It signals the starting system so the engine cranks only when the transmission selector is in Park or Neutral, acting as a start-safety interlock.
Which vehicles does the NS-99 fit?
It's a direct-fit replacement for the 1995-1998 Nissan 200SX, 1991-1999 Nissan Sentra, and the Nissan Tsuru in the 1991-1993 and 1995-2012 model runs. See the Buyer's Guide tab to confirm your vehicle.
What are signs my neutral safety switch may be failing?
Common signs include the engine cranking while in gear or a no-start in Park or Neutral. Have the starting circuit diagnosed before replacing parts.
What part numbers does the NS-99 interchange with?
It cross-references S26106, JA4006, NS5599, 3191831X08, and 3191831X12.
Will installing this switch fix my no-start?
If a failed neutral safety switch is the cause, replacing it with the NS-99 addresses it. A no-start can have other causes, so diagnose the circuit first.
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