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Standard Ignition NS-179 Neutral Safety Switch
| Brand | Standard Ignition NS-179 |
|---|---|
| Color | Black, Silver |
| Connector Gender | Male; Female |
| Finish | Aluminum, Plastic |
| Terminal Gender | Female; Female |
| Terminal Type | Blade |
| Fits | Nissan and INFINITI · 30 vehicles |
Bolt mount design. Installs securely with a straightforward attachment method.
Metal construction. Built with a durable metal body and aluminum-plastic finish.
12V operation. Made for standard 12-volt electrical systems.
Cross-references Standard Ignition NS-179, 1S5504 and 18-1473 for the same application. See all 11.
Neutral Safety Switch for Nissan and INFINITI
Standard Ignition NS-179 is a 12V neutral safety switch built for select Nissan and INFINITI applications. It uses a bolt-mount design with two rectangular connectors, 10 terminals, and a 9-wire layout for direct replacement service on the transmission range/start interlock circuit.
Fits 1989-1998 Nissan 240SX, N/A; Fits 1995-1996 Nissan Pickup, N/A; Fits 1996-2004 Nissan Pathfinder, N/A; Fits 2004 Nissan Pathfinder Armada, N/A; Fits 1996 INFINITI Q45, N/A; Fits 1997-2003 INFINITI QX4, N/A.
- Part number: NS-179
- Neutral safety switch for automatic transmission start circuit control
- 12V electrical design
- Bolt-mount attachment method
- 2 rectangular connectors with male/female connector gender
- 10 terminals, female blade terminal type
- Black and silver finish with metal, aluminum, and plastic construction
- Length: 6.5 in. (165.1 mm)
Detailed Product Information
Standard Ignition NS-179 is a replacement neutral safety switch for Nissan 240SX, Pathfinder, Pathfinder Armada, Pickup, and INFINITI Q45 and QX4 applications listed in the fitment data. It is designed for vehicles that use a bolt-mounted switch with a rectangular dual-connector layout and 12V electrical operation. This part number, NS-179, also cross-references Standard Ignition NS-179 for the same application.
Common Problems This Part Can Address
- Engine will not crank in Park or Neutral
- Intermittent or inconsistent starter engagement
- Transmission range signal issues at the start circuit
- Faulty neutral safety switch electrical connection
- Starting concerns tied to worn switch contacts or connector damage
Installation Notes and Tips
Verify the connector count, terminal layout, and bolt-mount style before installation. Match the vehicle application exactly, especially on Nissan Pathfinder, Nissan 240SX, and INFINITI QX4 models, and confirm the shifter is in the correct position during setup. Because mounting hardware is not listed as included, reuse or source the required hardware separately if needed.
Quality Assurance
Standard Ignition replacement electrical components are built for service use in automotive starting and control circuits. Confirm fitment by year, make, model, and connector configuration before installation.
| Year | Make | Model | Transmission | Position | Notes |
|---|---|---|---|---|---|
| 2004 | Nissan | Pathfinder | — | N/A | — |
| 2004 | Nissan | Pathfinder Armada | — | N/A | — |
| 2003 | INFINITI | QX4 | Automatic | N/A | — |
| 2003 | Nissan | Pathfinder | — | N/A | — |
| 2002 | INFINITI | QX4 | Automatic | N/A | — |
| 2002 | Nissan | Pathfinder | Automatic | N/A | — |
| 2001 | INFINITI | QX4 | Automatic | N/A | — |
| 2001 | Nissan | Pathfinder | Automatic | N/A | — |
| 2000 | INFINITI | QX4 | Automatic | N/A | — |
| 2000 | Nissan | Pathfinder | Automatic | N/A | — |
| 1999 | INFINITI | QX4 | Automatic | N/A | — |
| 1999 | Nissan | Pathfinder | Automatic | N/A | — |
| 1998 | INFINITI | QX4 | Automatic | N/A | — |
| 1998 | Nissan | 240SX | Automatic | N/A | — |
| 1998 | Nissan | Pathfinder | Automatic | N/A | — |
| 1997 | INFINITI | QX4 | Automatic | N/A | — |
| 1997 | Nissan | 240SX | Automatic | N/A | — |
| 1997 | Nissan | Pathfinder | Automatic | N/A | — |
| 1996 | INFINITI | Q45 | Automatic | N/A | — |
| 1996 | Nissan | 240SX | Automatic | N/A | — |
| 1996 | Nissan | Pathfinder | Automatic | N/A | — |
| 1996 | Nissan | Pickup | — | N/A | — |
| 1995 | Nissan | 240SX | Automatic | N/A | — |
| 1995 | Nissan | Pickup | Automatic | N/A | — |
| 1994 | Nissan | 240SX | Automatic | N/A | — |
| 1993 | Nissan | 240SX | Automatic | N/A | — |
| 1992 | Nissan | 240SX | Automatic | N/A | — |
| 1991 | Nissan | 240SX | Automatic | N/A | — |
| 1990 | Nissan | 240SX | Automatic | N/A | — |
| 1989 | Nissan | 240SX | Automatic | N/A | — |
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