HomeElectrical, Lighting and Body > SwitchesStandard Ignition NS-156 Neutral Safety Switch
Part #: NS-156

Standard Ignition NS-156 Neutral Safety Switch

⚙️ 10 vehicles fit this part
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Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Honda, Accord and Prelude
🔄Easy Returns — Return within 60 days for a full refund
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Reliable Neutral Safety Switch for Honda Accord and Prelude

The Standard Ignition NS-156 Neutral Safety Switch is designed to provide precise electrical control for your Honda Accord or Prelude. Engineered with durable materials and a bolt mount attachment, this switch ensures consistent performance in your vehicle's starting system.

  • Compatible with Honda Accord and Prelude models
  • Black face color with aluminum and plastic finish
  • 10 male blade terminals and 1 female rectangular connector
  • Bolt mount attachment method for secure installation
  • 16.19-inch wiring harness length for flexible routing
  • Operates on standard 12-volt electrical systems

Product Features and Specifications

The NS-156 neutral safety switch features a robust plastic body with an aluminum and plastic finish, designed to withstand typical automotive conditions. It includes 10 male blade terminals and a single female rectangular connector, facilitating reliable electrical connections. The switch mounts securely using bolts, ensuring stable placement within the vehicle. With a wiring harness length of approximately 16.19 inches (411 mm), it offers sufficient length for installation in Honda Accord and Prelude models. The switch operates on a 12-volt system, matching the electrical requirements of these vehicles.

Function and Application

This neutral safety switch is essential for preventing the engine from starting unless the transmission is in neutral or park, enhancing vehicle safety. It is commonly used to address issues such as:

  • Engine not starting due to faulty neutral safety switch
  • Intermittent starting problems related to electrical connection failures
  • Transmission safety interlock malfunctions
  • Electrical shorts or open circuits in the starting system
  • Replacement of worn or damaged factory switches in Honda Accord and Prelude

Installation Notes and Tips

Installation requires removal of the old neutral safety switch and mounting the NS-156 using bolts. Ensure the wiring harness is routed properly to avoid pinching or damage. Verify all blade terminals and connectors are securely attached to prevent electrical issues. This part does not include mounting hardware or gaskets, so retain original components or source compatible hardware as needed.

Quality Assurance and Warranty

Standard Ignition parts are manufactured to meet or exceed OEM specifications for fit and function. The NS-156 neutral safety switch undergoes quality checks to ensure reliable operation in Honda Accord and Prelude vehicles. While specific warranty details are not provided, Standard Ignition typically offers coverage against manufacturing defects. Consult product documentation or the manufacturer for exact warranty terms.

BrandStandard Ignition
Part NumberNS-156
ColorGray, Silver
Connector GenderFemale
FinishAluminum, Plastic
Terminal GenderMale
Terminal TypeBlade Terminals

This part fits 10 vehicles. Search below:

YearMakeModelTransmissionLitersCylindersPositionNotes
2002HondaAccord2.3LL4N/A
2001HondaAccord2.3LL4N/A
2001HondaPrelude2.2LL4N/A
2000HondaAccord2.3LL4N/A
2000HondaPreludeAutomaticN/A
1999HondaAccord2.3LL4N/A
1999HondaPreludeAutomaticN/A
1998HondaAccord2.3LL4N/A
1998HondaPreludeAutomaticN/A
1997HondaPreludeAutomaticN/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:

18-15121S561628900P6H01353-1169288923563JA4214NS5883NS602S26372

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