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.

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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.

This part fits 159 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelDrive TypeTransmissionLitersCylindersFuel TypePositionNotes
2022HyundaiAccent—Automatic1.6LL4—N/A—
2021HyundaiAccent—Automatic1.6LL4—N/A—
2021HyundaiKona——1.6LL4—N/A—
2021HyundaiTucsonAWDAutomatic2.0LL4—N/A—
2021HyundaiVeloster—Automatic2.0LL4—N/A—
2020HyundaiAccent—Automatic1.6LL4—N/A—
2020HyundaiElantra GT—Automatic2.0LL4—N/A—
2020HyundaiKona——1.6LL4—N/A—
2020HyundaiTucsonAWDAutomatic2.0LL4—N/A—
2020HyundaiVeloster—Automatic2.0LL4—N/A—
2019HyundaiAccent—Automatic1.6LL4—N/A—
2019HyundaiElantra—Automatic2.0LL4—N/A—
2019HyundaiElantra GT—Automatic2.0LL4—N/A—
2019HyundaiKona——1.6LL4—N/A—
2019HyundaiTucson—————N/A—
2019HyundaiVeloster—Automatic2.0LL4—N/A—
2019KiaOptima————GASN/A—
2019KiaRio—————N/A—
2019KiaSorento—————N/A—
2019KiaSoul——2.0LL4—N/A—
2019KiaSportage—————N/A—
2018HyundaiAccent—Automatic1.6LL4—N/A—
2018HyundaiElantra—Automatic2.0LL4—N/A—
2018HyundaiElantra GT—Automatic2.0LL4—N/A—
2018HyundaiKona——1.6LL4—N/A—
2018HyundaiSanta Fe—————N/A—
2018HyundaiSanta Fe Sport—————N/A—
2018HyundaiTucson—————N/A—
2018KiaForte——2.0LL4—N/A—
2018KiaOptima————GASN/A—
2018KiaRio—————N/A—
2018KiaSorento—————N/A—
2018KiaSoul——2.0LL4—N/A—
2018KiaSportage—————N/A—
2017HyundaiAccent—Automatic1.6LL4—N/A—
2017HyundaiAzera—————N/A—
2017HyundaiElantra—Automatic2.0LL4—N/A—
2017HyundaiElantra GT—Automatic———N/A—
2017HyundaiSanta Fe—————N/A—
2017HyundaiSanta Fe Sport—————N/A—
2017HyundaiTucson—————N/A—
2017JeepCompass——2.0LL4—N/A—
2017JeepCompass—Automatic2.4LL4—N/A—
2017JeepPatriot——2.0LL4—N/A—
2017JeepPatriot—Automatic2.4LL4—N/A—
2017KiaForte——2.0LL4—N/A—
2017KiaOptima————GASN/A—
2017KiaRio—————N/A—
2017KiaSorento—————N/A—
2017KiaSoul——2.0LL4—N/A—
2017KiaSportage—————N/A—
2016DodgeDart——2.0LL4—N/A—
2016HyundaiAccent—Automatic———N/A—
2016HyundaiAzera—————N/A—
2016HyundaiElantra—Automatic1.8LL4—N/A—
2016HyundaiElantra GT—Automatic———N/A—
2016HyundaiSanta Fe—————N/A—
2016HyundaiSanta Fe Sport—————N/A—
2016HyundaiTucson—————N/A—
2016JeepCompass——2.0LL4—N/A—
2016JeepCompass—Automatic2.4LL4—N/A—
2016JeepPatriot——2.0LL4—N/A—
2016JeepPatriot—Automatic2.4LL4—N/A—
2016KiaCadenza—————N/A—
2016KiaForte——2.0LL4—N/A—
2016KiaForte Koup——2.0LL4—N/A—
2016KiaOptima————GASN/A—
2016KiaRio—————N/A—
2016KiaSorento—————N/A—
2016KiaSoul—————N/A—
2016KiaSportage—————N/A—
2015DodgeDart——2.0LL4—N/A—
2015DodgeDart——2.4LL4—N/A—
2015HyundaiAccent—Automatic———N/A—
2015HyundaiAzera—————N/A—
2015HyundaiElantra—Automatic1.8LL4—N/A—
2015HyundaiElantra GT—Automatic———N/A—
2015HyundaiSanta Fe—————N/A—
2015HyundaiSanta Fe Sport—————N/A—
2015HyundaiSanta Fe XL——3.3LV6—N/A—
2015HyundaiSonata——2.0LL4—N/A—
2015HyundaiTucson—————N/A—
2015HyundaiVeloster—————N/A—
2015JeepCompass——2.0LL4—N/A—
2015JeepCompass—Automatic2.4LL4—N/A—
2015JeepPatriot——2.0LL4—N/A—
2015JeepPatriot—Automatic2.4LL4—N/A—
2015KiaCadenza—————N/A—
2015KiaForte——2.0LL4—N/A—
2015KiaForte Koup——2.0LL4—N/A—
2015KiaForte5——2.0LL4—N/A—
2015KiaOptima————GASN/A—
2015KiaRio—————N/A—
2015KiaSedona——3.3LV6—N/A—
2015KiaSorento—————N/A—
2015KiaSoul—————N/A—
2015KiaSportage—————N/A—
2014DodgeDart——2.0LL4—N/A—
2014DodgeDart——2.4LL4—N/A—
2014HyundaiAccent—Automatic———N/A—
2014HyundaiAzera—————N/A—
2014HyundaiElantra—Automatic1.8LL4—N/A—
2014HyundaiElantra GT—————N/A—
2014HyundaiSanta Fe—————N/A—
2014HyundaiSanta Fe Sport—————N/A—
2014HyundaiSanta Fe XL——3.3LV6—N/A—
2014HyundaiSonata—————N/A—
2014HyundaiTucson—————N/A—
2014HyundaiVeloster—————N/A—
2014JeepCompass——2.0LL4—N/A—
2014JeepCompass—Automatic2.4LL4—N/A—
2014JeepPatriot——2.0LL4—N/A—
2014JeepPatriot—Automatic2.4LL4—N/A—
2014KiaCadenza—————N/ATo 10/23/13
2014KiaForte—————N/A—
2014KiaForte Koup—————N/A—
2014KiaForte5——2.0LL4—N/A—
2014KiaOptima—————N/A—
2014KiaRio—————N/A—
2014KiaSorento—————N/A—
2014KiaSoul—————N/A—
2014KiaSportage—————N/A—
2013DodgeDart——2.0LL4—N/A—
2013DodgeDart——2.4LL4—N/A—
2013HyundaiAccent—Automatic———N/A—
2013HyundaiAzera—————N/A—
2013HyundaiElantra—Automatic1.8LL4—N/A—
2013HyundaiElantra GT—Automatic———N/A—
2013HyundaiSanta Fe—————N/A—
2013HyundaiSanta Fe Sport—————N/A—
2013HyundaiSanta Fe XL——3.3LV6—N/A—
2013HyundaiSonata—————N/A—
2013HyundaiVeloster—————N/A—
2013KiaForte—————N/A—
2013KiaForte Koup—————N/A—
2013KiaForte5——2.4LL4—N/A—
2013KiaOptima—————N/A—
2013KiaRio—————N/A—
2013KiaSorento—————N/A—
2013KiaSoul——2.0LL4—N/A—
2013KiaSportage——2.0LL4—N/A—
2012HyundaiAccent—Automatic———N/A—
2012HyundaiAzera—————N/A—
2012HyundaiElantra—Automatic1.8LL4—N/A—
2012HyundaiSonata—————N/A—
2012HyundaiVeloster—————N/A—
2012KiaForte—————N/A—
2012KiaForte Koup—————N/A—
2012KiaForte5—————N/A—
2012KiaOptima—————N/A—
2012KiaRio—————N/A—
2012KiaSorento—————N/A—
2012KiaSoul——2.0LL4—N/A—
2012KiaSportage——2.0LL4—N/A—
2011HyundaiElantra—Automatic1.8LL4—N/A—
2011HyundaiSonata—————N/A—
2011KiaForte Koup—————N/A—
2011KiaOptima—————N/A—
2011KiaSportage——2.0LL4—N/A—
Directly replaces or cross-references 7 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Standard Ignition — NS-66668192769AA28700260014270026000CSW563NS7068SW9332