HomeElectrical, Lighting and Body > SwitchesStandard Ignition NS-487 Neutral Safety Switch
Part #: NS-487

Standard Ignition NS-487 Neutral Safety Switch

⚙️ 46 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: BMW, Z4, 525i, 530i, 325Ci, 325i, 325xi, 330Ci, 330i, 330xi, Z3, 323Ci, 323i, and 328i
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Overview of Standard Ignition Neutral Safety Switch NS-487

The Standard Ignition NS-487 Neutral Safety Switch is designed for precise electrical control in select BMW models. This switch ensures safe engine starting by preventing the vehicle from starting in gear, enhancing operational safety for your BMW 3 Series and 5 Series vehicles.

  • Compatible with BMW 323Ci, 323i, 325Ci, 325i, 325xi, 328i, 330Ci, 330i, 330xi, 525i, 530i, Z3, and Z4 models
  • Equipped with 5 male bullet terminals and 1 female round connector
  • Durable metal and plastic construction with black and silver finish
  • Bolt mount attachment method for secure installation
  • 16.5-inch wiring harness length for flexible routing

Detailed Product Description

The Standard Ignition NS-487 neutral safety switch is engineered with a robust metal body complemented by plastic components, finished in black and silver to resist corrosion and wear. It features five male bullet terminals and a single female round connector, facilitating reliable electrical connections. The bolt mount attachment method ensures a secure fitment in the vehicle’s transmission system. With a wiring harness length of 16.5 inches (419.1 mm), this switch provides ample length for straightforward installation and integration into the vehicle’s electrical system. Measuring approximately 3.97 inches (100.8 mm) in length, the switch is compact yet built to meet OEM specifications for the listed BMW models.

Applications and Problem Resolution

  • Prevents engine from starting when the transmission is in gear
  • Eliminates no-start conditions related to faulty neutral safety switches
  • Resolves intermittent starting issues caused by electrical connection failures
  • Ensures compliance with safety standards for vehicle starting circuits
  • Addresses transmission range sensor malfunctions in compatible BMW models

Installation Notes and Tips

  • Ensure the vehicle is in neutral or park before installation
  • Use appropriate tools for bolt mount attachment to avoid damage
  • Verify connector orientation: female round connector mates with male terminals
  • Check wiring harness length to confirm compatibility with vehicle routing
  • Test switch operation before final assembly to confirm proper function

Quality Assurance and Warranty

Standard Ignition manufactures the NS-487 neutral safety switch to meet strict quality standards, ensuring reliable performance in BMW vehicles. While mounting hardware and gaskets are not included, the switch is designed for direct replacement with OEM specifications. Standard Ignition typically offers a limited warranty on electrical components; please refer to the product documentation for specific warranty details.

BrandStandard Ignition
Part NumberNS-487
ColorBlack, Silver
Connector GenderFemale
FinishMetal, Plastic
Terminal GenderMale
Terminal TypeBullet

This part fits 46 vehicles. Search below:

YearMakeModelTransmissionLitersCylindersPositionNotes
2005BMWZ43.0LL6N/A
2005BMWZ42.5LL6N/A
2004BMW525iN/A
2004BMW530iN/A
2004BMWZ43.0LL6N/A
2004BMWZ42.5LL6N/A
2003BMW325CiAutomaticN/A
2003BMW325i2.5LL6N/ATo 3/03
2003BMW325xi2.5LL6N/ATo 3/03
2003BMW330CiAutomaticN/A
2003BMW330iAutomaticN/A
2003BMW330xiAutomaticN/A
2003BMW525iN/A
2003BMW530iAutomaticN/A
2003BMWZ43.0LL6N/A
2003BMWZ42.5LL6N/A
2002BMW325CiAutomaticN/A
2002BMW325iAutomaticN/A
2002BMW330CiAutomaticN/A
2002BMW330iAutomaticN/A
2002BMW330xiAutomaticN/A
2002BMW525iN/Aw/ Touring Package
2002BMW530iAutomaticN/A
2002BMWZ33.0LL6N/A
2002BMWZ32.5LL6N/A
2001BMW325Ci2.5LL6N/A
2001BMW325i2.5LL6N/A
2001BMW325xi2.5LL6N/A
2001BMW330CiN/A
2001BMW330iN/A
2001BMW330xiN/A
2001BMW525iN/ANot compatible with vehicles equipped with Auto Headlights
2001BMW530iAutomaticN/A
2001BMWZ33.0LL6N/A
2001BMWZ32.5LL6N/A
2000BMW323CiN/A
2000BMW323iN/A
2000BMW328i2.8LL6N/AFrom 3/00
2000BMWZ32.8LL6N/A
2000BMWZ32.5LL6N/A
1999BMWZ32.5LL6N/A
1999BMWZ32.8LL6N/A
1998BMWZ32.8LL6N/A
1998BMWZ31.9LL4N/A
1997BMWZ3N/A
1996BMWZ3N/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:

18-22031S69252410142337853-31853NS6705RB4005S41246V20-73-0149

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