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Standard Ignition NS-674 Neutral Safety Switch
| Brand | Standard Ignition NS-674 |
|---|---|
| Color | Black, Gray |
| Connector Gender | Female |
| Finish | Cast Iron, Plastic |
| Material | Plastic |
| Mounting Type | Bolt Mount |
| Terminal Gender | Male |
| Terminal Type | Blade; Pin |
| Fits | Toyota · 25 vehicles |
Bolt-mount design. Installs securely with a simple bolt-on attachment method.
7-terminal connector. Female rectangular connector with blade and pin terminals.
12V operation. Built for standard 12-volt electrical systems.
Cross-references Standard Ignition NS-674, 845400C010 and CSW571 for the same application. See all 5.
Neutral Safety Switch for Toyota Tundra and Sequoia
Standard Ignition NS-674 is a 12V neutral safety switch built for automatic transmission starting circuit control. It uses a bolt-mount design with a rectangular female connector and 7 male terminals for a direct electrical connection on supported Toyota applications.
Key Features
- Neutral safety switch for Toyota Tundra and Toyota Sequoia applications
- 12V electrical design
- Bolt mount attachment method
- Rectangular 1-connector layout with 7 terminals
- Blade and pin terminal types
- Cast iron and plastic construction
- 4-inch overall length
Product Details
Standard Ignition NS-674 is a replacement neutral safety switch used in the starting and transmission interlock circuit. It is built with a plastic body and cast iron components, and it connects through a single rectangular female connector with male blade and pin terminals. This part number, NS-674, is listed for 2007-2019 Toyota Tundra and 2008-2019 Toyota Sequoia applications. This part cross-references 845400C010 for the same application.
Common Issues This Part Can Address
- Engine will not crank in Park or Neutral
- Intermittent no-start condition related to the transmission range circuit
- Starter engagement problems tied to the neutral safety circuit
- Incorrect park/neutral signal to the starting system
- Electrical connection faults at the transmission-mounted switch
Installation Notes
Verify the transmission range and connector style before installation. This NS-674 uses bolt mount attachment and does not include mounting hardware or gaskets. Confirm terminal count, connector shape, and vehicle application before replacing the switch on a Toyota Tundra or Toyota Sequoia.
Quality Assurance
Standard Ignition replacement electrical parts are built to match the specified fitment and connector requirements for the listed Toyota applications. NS-674 is intended for 12V systems and is identified for 2007-2019 Toyota Tundra and 2008-2019 Toyota Sequoia coverage.
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 2019 | Toyota | Sequoia | N/A | — |
| 2019 | Toyota | Tundra | N/A | — |
| 2018 | Toyota | Sequoia | N/A | — |
| 2018 | Toyota | Tundra | N/A | — |
| 2017 | Toyota | Sequoia | N/A | — |
| 2017 | Toyota | Tundra | N/A | — |
| 2016 | Toyota | Sequoia | N/A | — |
| 2016 | Toyota | Tundra | N/A | — |
| 2015 | Toyota | Sequoia | N/A | — |
| 2015 | Toyota | Tundra | N/A | — |
| 2014 | Toyota | Sequoia | N/A | — |
| 2014 | Toyota | Tundra | N/A | — |
| 2013 | Toyota | Sequoia | N/A | — |
| 2013 | Toyota | Tundra | N/A | — |
| 2012 | Toyota | Sequoia | N/A | — |
| 2012 | Toyota | Tundra | N/A | — |
| 2011 | Toyota | Sequoia | N/A | — |
| 2011 | Toyota | Tundra | N/A | — |
| 2010 | Toyota | Sequoia | N/A | — |
| 2010 | Toyota | Tundra | N/A | — |
| 2009 | Toyota | Sequoia | N/A | — |
| 2009 | Toyota | Tundra | N/A | — |
| 2008 | Toyota | Sequoia | N/A | — |
| 2008 | Toyota | Tundra | N/A | — |
| 2007 | Toyota | Tundra | N/A | — |
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