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Standard Ignition NS-666 Neutral Safety Switch
| Brand | Standard Ignition NS-666 |
|---|---|
| Color | Black, Gray |
| Connector Gender | Female |
| Finish | Cast Iron, Plastic |
| Mounting Type | Bolt Mount |
| Terminal Gender | Male |
| Fits | Hyundai, Kia, Jeep, and Dodge · 159 vehicles |
Bolt-mount design. Installs securely with a simple bolt-on attachment method.
12V electrical part. Built for dependable operation in standard 12-volt systems.
Blade terminals. Uses an 8-terminal layout with a rectangular connector for clean hookups.
Cross-references Standard Ignition NS-666, 68192769AA and 2870026001 for the same application. See all 7.
Neutral Safety Switch for Hyundai and Kia
Standard Ignition NS-666 is a 12V neutral safety switch built for automatic transmission starting circuits. It uses a bolt-mount design with a rectangular female connector and 8 male blade terminals for a direct electrical connection on supported applications.
Fits 2011-2019 Hyundai Elantra, N/A; Fits 2013-2020 Hyundai Elantra GT, N/A; Fits 2011-2015 Hyundai Sonata, N/A; Fits 2014-2021 Hyundai Tucson, N/A; Fits 2012-2019 Kia Soul, N/A.
- 12V neutral safety switch for starting circuit control
- Bolt-mount attachment method
- 1 rectangular female connector
- 8 male blade terminals
- Black and gray finish with plastic and metal construction
- Approximate length: 2.875 in. (73.025 mm)
Application Details
Standard Ignition NS-666 is used in vehicles where the transmission range circuit must confirm the shifter is in Park or Neutral before the starter engages. It cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application. This part number is also referenced as NS-666 in catalog listings for Hyundai Elantra, Hyundai Sonata, Kia Soul, and Kia Sportage applications.
Common Symptoms It Can Address
- Engine will not crank in Park or Neutral
- Starter engages only when the shifter is moved
- Intermittent no-start condition related to the transmission range circuit
- Reverse or park-start interlock concerns on supported vehicles
- Transmission selector signal faults tied to the neutral safety switch
Installation Notes
Verify connector style, terminal count, and bolt-mount location before installation. This switch uses a female rectangular connector with 8 male blade terminals and no mounting hardware included. Confirm the vehicle’s transmission range adjustment after installation so the starter interlock functions correctly.
Quality Assurance
Standard Ignition supplies this neutral safety switch as an OE-style electrical replacement for supported Hyundai, Kia, Jeep, and Dodge applications. Part number NS-666 is built to match the listed connector, terminal, and mounting specifications for proper fitment on confirmed vehicles.
| Year | Make | Model | Drive Type | Transmission | Liters | Cylinders | Fuel Type | Position | Notes |
|---|---|---|---|---|---|---|---|---|---|
| 2022 | Hyundai | Accent | — | Automatic | 1.6L | L4 | — | N/A | — |
| 2021 | Hyundai | Accent | — | Automatic | 1.6L | L4 | — | N/A | — |
| 2021 | Hyundai | Kona | — | — | 1.6L | L4 | — | N/A | — |
| 2021 | Hyundai | Tucson | AWD | Automatic | 2.0L | L4 | — | N/A | — |
| 2021 | Hyundai | Veloster | — | Automatic | 2.0L | L4 | — | N/A | — |
| 2020 | Hyundai | Accent | — | Automatic | 1.6L | L4 | — | N/A | — |
| 2020 | Hyundai | Elantra GT | — | Automatic | 2.0L | L4 | — | N/A | — |
| 2020 | Hyundai | Kona | — | — | 1.6L | L4 | — | N/A | — |
| 2020 | Hyundai | Tucson | AWD | Automatic | 2.0L | L4 | — | N/A | — |
| 2020 | Hyundai | Veloster | — | Automatic | 2.0L | L4 | — | N/A | — |
| 2019 | Hyundai | Accent | — | Automatic | 1.6L | L4 | — | N/A | — |
| 2019 | Hyundai | Elantra | — | Automatic | 2.0L | L4 | — | N/A | — |
| 2019 | Hyundai | Elantra GT | — | Automatic | 2.0L | L4 | — | N/A | — |
| 2019 | Hyundai | Kona | — | — | 1.6L | L4 | — | N/A | — |
| 2019 | Hyundai | Tucson | — | — | — | — | — | N/A | — |
| 2019 | Hyundai | Veloster | — | Automatic | 2.0L | L4 | — | N/A | — |
| 2019 | Kia | Optima | — | — | — | — | GAS | N/A | — |
| 2019 | Kia | Rio | — | — | — | — | — | N/A | — |
| 2019 | Kia | Sorento | — | — | — | — | — | N/A | — |
| 2019 | Kia | Soul | — | — | 2.0L | L4 | — | N/A | — |
| 2019 | Kia | Sportage | — | — | — | — | — | N/A | — |
| 2018 | Hyundai | Accent | — | Automatic | 1.6L | L4 | — | N/A | — |
| 2018 | Hyundai | Elantra | — | Automatic | 2.0L | L4 | — | N/A | — |
| 2018 | Hyundai | Elantra GT | — | Automatic | 2.0L | L4 | — | N/A | — |
| 2018 | Hyundai | Kona | — | — | 1.6L | L4 | — | N/A | — |
| 2018 | Hyundai | Santa Fe | — | — | — | — | — | N/A | — |
| 2018 | Hyundai | Santa Fe Sport | — | — | — | — | — | N/A | — |
| 2018 | Hyundai | Tucson | — | — | — | — | — | N/A | — |
| 2018 | Kia | Forte | — | — | 2.0L | L4 | — | N/A | — |
| 2018 | Kia | Optima | — | — | — | — | GAS | N/A | — |
| 2018 | Kia | Rio | — | — | — | — | — | N/A | — |
| 2018 | Kia | Sorento | — | — | — | — | — | N/A | — |
| 2018 | Kia | Soul | — | — | 2.0L | L4 | — | N/A | — |
| 2018 | Kia | Sportage | — | — | — | — | — | N/A | — |
| 2017 | Hyundai | Accent | — | Automatic | 1.6L | L4 | — | N/A | — |
| 2017 | Hyundai | Azera | — | — | — | — | — | N/A | — |
| 2017 | Hyundai | Elantra | — | Automatic | 2.0L | L4 | — | N/A | — |
| 2017 | Hyundai | Elantra GT | — | Automatic | — | — | — | N/A | — |
| 2017 | Hyundai | Santa Fe | — | — | — | — | — | N/A | — |
| 2017 | Hyundai | Santa Fe Sport | — | — | — | — | — | N/A | — |
| 2017 | Hyundai | Tucson | — | — | — | — | — | N/A | — |
| 2017 | Jeep | Compass | — | — | 2.0L | L4 | — | N/A | — |
| 2017 | Jeep | Compass | — | Automatic | 2.4L | L4 | — | N/A | — |
| 2017 | Jeep | Patriot | — | — | 2.0L | L4 | — | N/A | — |
| 2017 | Jeep | Patriot | — | Automatic | 2.4L | L4 | — | N/A | — |
| 2017 | Kia | Forte | — | — | 2.0L | L4 | — | N/A | — |
| 2017 | Kia | Optima | — | — | — | — | GAS | N/A | — |
| 2017 | Kia | Rio | — | — | — | — | — | N/A | — |
| 2017 | Kia | Sorento | — | — | — | — | — | N/A | — |
| 2017 | Kia | Soul | — | — | 2.0L | L4 | — | N/A | — |
| 2017 | Kia | Sportage | — | — | — | — | — | N/A | — |
| 2016 | Dodge | Dart | — | — | 2.0L | L4 | — | N/A | — |
| 2016 | Hyundai | Accent | — | Automatic | — | — | — | N/A | — |
| 2016 | Hyundai | Azera | — | — | — | — | — | N/A | — |
| 2016 | Hyundai | Elantra | — | Automatic | 1.8L | L4 | — | N/A | — |
| 2016 | Hyundai | Elantra GT | — | Automatic | — | — | — | N/A | — |
| 2016 | Hyundai | Santa Fe | — | — | — | — | — | N/A | — |
| 2016 | Hyundai | Santa Fe Sport | — | — | — | — | — | N/A | — |
| 2016 | Hyundai | Tucson | — | — | — | — | — | N/A | — |
| 2016 | Jeep | Compass | — | — | 2.0L | L4 | — | N/A | — |
| 2016 | Jeep | Compass | — | Automatic | 2.4L | L4 | — | N/A | — |
| 2016 | Jeep | Patriot | — | — | 2.0L | L4 | — | N/A | — |
| 2016 | Jeep | Patriot | — | Automatic | 2.4L | L4 | — | N/A | — |
| 2016 | Kia | Cadenza | — | — | — | — | — | N/A | — |
| 2016 | Kia | Forte | — | — | 2.0L | L4 | — | N/A | — |
| 2016 | Kia | Forte Koup | — | — | 2.0L | L4 | — | N/A | — |
| 2016 | Kia | Optima | — | — | — | — | GAS | N/A | — |
| 2016 | Kia | Rio | — | — | — | — | — | N/A | — |
| 2016 | Kia | Sorento | — | — | — | — | — | N/A | — |
| 2016 | Kia | Soul | — | — | — | — | — | N/A | — |
| 2016 | Kia | Sportage | — | — | — | — | — | N/A | — |
| 2015 | Dodge | Dart | — | — | 2.0L | L4 | — | N/A | — |
| 2015 | Dodge | Dart | — | — | 2.4L | L4 | — | N/A | — |
| 2015 | Hyundai | Accent | — | Automatic | — | — | — | N/A | — |
| 2015 | Hyundai | Azera | — | — | — | — | — | N/A | — |
| 2015 | Hyundai | Elantra | — | Automatic | 1.8L | L4 | — | N/A | — |
| 2015 | Hyundai | Elantra GT | — | Automatic | — | — | — | N/A | — |
| 2015 | Hyundai | Santa Fe | — | — | — | — | — | N/A | — |
| 2015 | Hyundai | Santa Fe Sport | — | — | — | — | — | N/A | — |
| 2015 | Hyundai | Santa Fe XL | — | — | 3.3L | V6 | — | N/A | — |
| 2015 | Hyundai | Sonata | — | — | 2.0L | L4 | — | N/A | — |
| 2015 | Hyundai | Tucson | — | — | — | — | — | N/A | — |
| 2015 | Hyundai | Veloster | — | — | — | — | — | N/A | — |
| 2015 | Jeep | Compass | — | — | 2.0L | L4 | — | N/A | — |
| 2015 | Jeep | Compass | — | Automatic | 2.4L | L4 | — | N/A | — |
| 2015 | Jeep | Patriot | — | — | 2.0L | L4 | — | N/A | — |
| 2015 | Jeep | Patriot | — | Automatic | 2.4L | L4 | — | N/A | — |
| 2015 | Kia | Cadenza | — | — | — | — | — | N/A | — |
| 2015 | Kia | Forte | — | — | 2.0L | L4 | — | N/A | — |
| 2015 | Kia | Forte Koup | — | — | 2.0L | L4 | — | N/A | — |
| 2015 | Kia | Forte5 | — | — | 2.0L | L4 | — | N/A | — |
| 2015 | Kia | Optima | — | — | — | — | GAS | N/A | — |
| 2015 | Kia | Rio | — | — | — | — | — | N/A | — |
| 2015 | Kia | Sedona | — | — | 3.3L | V6 | — | N/A | — |
| 2015 | Kia | Sorento | — | — | — | — | — | N/A | — |
| 2015 | Kia | Soul | — | — | — | — | — | N/A | — |
| 2015 | Kia | Sportage | — | — | — | — | — | N/A | — |
| 2014 | Dodge | Dart | — | — | 2.0L | L4 | — | N/A | — |
| 2014 | Dodge | Dart | — | — | 2.4L | L4 | — | N/A | — |
| 2014 | Hyundai | Accent | — | Automatic | — | — | — | N/A | — |
| 2014 | Hyundai | Azera | — | — | — | — | — | N/A | — |
| 2014 | Hyundai | Elantra | — | Automatic | 1.8L | L4 | — | N/A | — |
| 2014 | Hyundai | Elantra GT | — | — | — | — | — | N/A | — |
| 2014 | Hyundai | Santa Fe | — | — | — | — | — | N/A | — |
| 2014 | Hyundai | Santa Fe Sport | — | — | — | — | — | N/A | — |
| 2014 | Hyundai | Santa Fe XL | — | — | 3.3L | V6 | — | N/A | — |
| 2014 | Hyundai | Sonata | — | — | — | — | — | N/A | — |
| 2014 | Hyundai | Tucson | — | — | — | — | — | N/A | — |
| 2014 | Hyundai | Veloster | — | — | — | — | — | N/A | — |
| 2014 | Jeep | Compass | — | — | 2.0L | L4 | — | N/A | — |
| 2014 | Jeep | Compass | — | Automatic | 2.4L | L4 | — | N/A | — |
| 2014 | Jeep | Patriot | — | — | 2.0L | L4 | — | N/A | — |
| 2014 | Jeep | Patriot | — | Automatic | 2.4L | L4 | — | N/A | — |
| 2014 | Kia | Cadenza | — | — | — | — | — | N/A | To 10/23/13 |
| 2014 | Kia | Forte | — | — | — | — | — | N/A | — |
| 2014 | Kia | Forte Koup | — | — | — | — | — | N/A | — |
| 2014 | Kia | Forte5 | — | — | 2.0L | L4 | — | N/A | — |
| 2014 | Kia | Optima | — | — | — | — | — | N/A | — |
| 2014 | Kia | Rio | — | — | — | — | — | N/A | — |
| 2014 | Kia | Sorento | — | — | — | — | — | N/A | — |
| 2014 | Kia | Soul | — | — | — | — | — | N/A | — |
| 2014 | Kia | Sportage | — | — | — | — | — | N/A | — |
| 2013 | Dodge | Dart | — | — | 2.0L | L4 | — | N/A | — |
| 2013 | Dodge | Dart | — | — | 2.4L | L4 | — | N/A | — |
| 2013 | Hyundai | Accent | — | Automatic | — | — | — | N/A | — |
| 2013 | Hyundai | Azera | — | — | — | — | — | N/A | — |
| 2013 | Hyundai | Elantra | — | Automatic | 1.8L | L4 | — | N/A | — |
| 2013 | Hyundai | Elantra GT | — | Automatic | — | — | — | N/A | — |
| 2013 | Hyundai | Santa Fe | — | — | — | — | — | N/A | — |
| 2013 | Hyundai | Santa Fe Sport | — | — | — | — | — | N/A | — |
| 2013 | Hyundai | Santa Fe XL | — | — | 3.3L | V6 | — | N/A | — |
| 2013 | Hyundai | Sonata | — | — | — | — | — | N/A | — |
| 2013 | Hyundai | Veloster | — | — | — | — | — | N/A | — |
| 2013 | Kia | Forte | — | — | — | — | — | N/A | — |
| 2013 | Kia | Forte Koup | — | — | — | — | — | N/A | — |
| 2013 | Kia | Forte5 | — | — | 2.4L | L4 | — | N/A | — |
| 2013 | Kia | Optima | — | — | — | — | — | N/A | — |
| 2013 | Kia | Rio | — | — | — | — | — | N/A | — |
| 2013 | Kia | Sorento | — | — | — | — | — | N/A | — |
| 2013 | Kia | Soul | — | — | 2.0L | L4 | — | N/A | — |
| 2013 | Kia | Sportage | — | — | 2.0L | L4 | — | N/A | — |
| 2012 | Hyundai | Accent | — | Automatic | — | — | — | N/A | — |
| 2012 | Hyundai | Azera | — | — | — | — | — | N/A | — |
| 2012 | Hyundai | Elantra | — | Automatic | 1.8L | L4 | — | N/A | — |
| 2012 | Hyundai | Sonata | — | — | — | — | — | N/A | — |
| 2012 | Hyundai | Veloster | — | — | — | — | — | N/A | — |
| 2012 | Kia | Forte | — | — | — | — | — | N/A | — |
| 2012 | Kia | Forte Koup | — | — | — | — | — | N/A | — |
| 2012 | Kia | Forte5 | — | — | — | — | — | N/A | — |
| 2012 | Kia | Optima | — | — | — | — | — | N/A | — |
| 2012 | Kia | Rio | — | — | — | — | — | N/A | — |
| 2012 | Kia | Sorento | — | — | — | — | — | N/A | — |
| 2012 | Kia | Soul | — | — | 2.0L | L4 | — | N/A | — |
| 2012 | Kia | Sportage | — | — | 2.0L | L4 | — | N/A | — |
| 2011 | Hyundai | Elantra | — | Automatic | 1.8L | L4 | — | N/A | — |
| 2011 | Hyundai | Sonata | — | — | — | — | — | N/A | — |
| 2011 | Kia | Forte Koup | — | — | — | — | — | N/A | — |
| 2011 | Kia | Optima | — | — | — | — | — | N/A | — |
| 2011 | Kia | Sportage | — | — | 2.0L | L4 | — | N/A | — |
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