HomeElectrical, Lighting and Body > SwitchesStandard Ignition NS-343 Neutral Safety Switch
Part #: NS-343

Standard Ignition NS-343 Neutral Safety Switch

⚙️ 1 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: INFINITI, Q45
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Reliable Neutral Safety Switch for Infiniti Q45

The Standard Ignition NS-343 Neutral Safety Switch is designed specifically for Infiniti Q45 models, ensuring precise electrical performance and safety. This switch features a durable plastic construction with metal components, engineered to meet the exact specifications required for your vehicle's neutral safety system.

  • Compatible with Infiniti Q45 vehicles
  • Part number NS-343 for accurate identification
  • Black face color with metal and plastic finish
  • Two male pin terminals with push-in attachment method
  • 12-volt voltage rating with a 13.875-inch wiring harness length
  • Compact size measuring approximately 2.16 inches in length

Product Features and Specifications

The NS-343 neutral safety switch from Standard Ignition is built with a plastic body and metal components to provide reliable electrical connectivity. It includes two male pin terminals designed for push-in attachment, eliminating the need for additional connectors. The wiring harness extends 13.875 inches, allowing for straightforward installation within the vehicle's electrical system. The switch operates at 12 volts, matching the electrical requirements of the Infiniti Q45.

Function and Application

This neutral safety switch is an essential component that prevents the engine from starting unless the transmission is in neutral or park, enhancing vehicle safety. It is specifically compatible with Infiniti Q45 models, ensuring proper fit and function.

  • Prevents engine start in gear to avoid accidental movement
  • Ensures correct transmission position detection
  • Maintains electrical circuit integrity for starting system
  • Replaces faulty or worn neutral safety switches in Infiniti Q45

Installation Notes and Tips

Installation of the Standard Ignition NS-343 neutral safety switch requires no mounting hardware, as it uses a push-in attachment method. Ensure the vehicle is turned off and the battery disconnected before installation. Verify the two male pin terminals align correctly with the vehicle’s wiring harness. Due to the absence of included gaskets or connectors, inspect existing seals and connectors for wear and replace if necessary to maintain proper function.

Quality Assurance and Warranty

Standard Ignition manufactures the NS-343 neutral safety switch to meet OEM standards for fit, form, and function. While mounting hardware and gaskets are not included, the product is designed for durability and reliable operation within the Infiniti Q45 electrical system. Please refer to Standard Ignition’s warranty policy for specific coverage details.

BrandStandard Ignition
Part NumberNS-343
ColorBlack
Connector GenderFemale
FinishMetal, Plastic
Terminal GenderMale
Terminal TypePins

This part fits 1 vehicles. Search below:

YearMakeModelTransmissionPositionNotes
2003INFINITIQ45AutomaticN/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:

18-09451S1008534980AT90053-31952NS38055NS6837SW7478

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