HomeElectrical, Lighting and Body > SwitchesStandard Ignition NS-258 Neutral Safety Switch
Part #: NS-258

Standard Ignition NS-258 Neutral Safety Switch

⚙️ 1 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Acura, NSX
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Reliable Neutral Safety Switch for Acura NSX

The Standard Ignition NS-258 Neutral Safety Switch is designed specifically for Acura NSX models, ensuring precise electrical performance and safety. This screw-in switch features a durable plastic construction with a dichromate finish, built to meet the demands of your vehicle's electrical system.

  • Compatible with Acura NSX vehicles
  • Part number NS-258 for exact replacement
  • Screw-in attachment method for secure installation
  • Two male terminals with pin-type connectors
  • One female rectangular connector for wiring harness
  • 12-volt electrical rating suitable for standard automotive systems
  • Wiring harness length of approximately 12.375 inches (314.325 mm)
  • Compact size with 4-inch (101.6 mm) length
  • Black and gray color finish with plastic and dichromate materials

Product Details and Specifications

The NS-258 Neutral Safety Switch from Standard Ignition is engineered to provide reliable switching functionality in the electrical system of Acura NSX vehicles. It features two male pin terminals and a single female rectangular connector, facilitating a secure and precise connection to the vehicle’s wiring harness. The switch is constructed from durable plastic with a dichromate finish, offering resistance to corrosion and wear. Its screw-in attachment method ensures a firm fit without the need for additional mounting hardware, which is not included. The wiring harness length of 12.375 inches allows for straightforward integration into the existing electrical layout.

Common Applications and Problem Resolution

  • Prevents engine start in gear, enhancing vehicle safety
  • Resolves issues with the vehicle not starting or starting intermittently
  • Eliminates electrical faults related to neutral safety switch failure
  • Addresses problems with gear position sensor malfunctions
  • Restores proper communication between transmission and ignition system

Installation Notes and Tips

Installation of the Standard Ignition NS-258 Neutral Safety Switch requires basic mechanical skills and appropriate tools for screw-in components. Ensure the vehicle is turned off and the battery is disconnected before beginning installation. Align the switch carefully with the mounting point and secure it using the screw-in method. Connect the two male pin terminals to the corresponding female connectors on the vehicle wiring harness, ensuring a snug fit with the rectangular female connector. Since mounting hardware and gaskets are not included, retain original components if possible or source replacements separately.

Quality Assurance and Warranty Information

Standard Ignition parts are manufactured to meet or exceed OEM specifications for fit, form, and function. The NS-258 Neutral Safety Switch undergoes rigorous quality control to ensure reliable performance in Acura NSX vehicles. While specific warranty details may vary, Standard Ignition typically offers a limited warranty covering defects in material and workmanship. Consult product documentation or the manufacturer for exact warranty terms.

BrandStandard Ignition
Part NumberNS-258
ColorBlack, Gray
Connector GenderFemale
FinishDichromate, Plastic
Terminal GenderMale
Terminal TypePins

This part fits 1 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2005AcuraNSX3.2LV6N/A

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

18-15221S581135620PR800353-3181589057444JA4443NS5911S26390

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.