Standard Ignition NS-302 Neutral Safety Switch

Brand Standard Ignition NS-302
Color Black
Connector Gender Female
Finish Aluminum, Plastic
Material Metal
Mounting Type Bolt Mount
Terminal Gender Male
Terminal Type Blade
Fits Chevrolet, Oldsmobile, and Pontiac · 6 vehicles

Bolt mount design. Installs securely with a single connector and blade terminals.

Copper alloy conductors. Deliver strong conductivity with low resistive losses.

100% tested. Verifies mechanical and electrical switching performance.

Cross-references 1S5165, 53-31569 and 24222729 for the same application. See all 6.

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Neutral Safety Switch for GM Minivans and Cars

Standard Ignition NS-302 is a bolt-mount neutral safety switch built for reliable starter interlock and transmission range signaling. It uses a black housing, a female connector, and a 7-blade terminal layout with male terminals for a direct electrical connection.

Fits 2003-2004 Oldsmobile Silhouette, N/A; Fits 2003-2004 Pontiac Montana, N/A; Fits 2003 Pontiac Bonneville, N/A; Fits 2003 Pontiac Grand Prix, N/A.

Key Features

  • Neutral safety switch for automatic transmission starting circuit control
  • Bolt-mount design for secure installation
  • Black housing with aluminum and plastic finish
  • Female connector with 7 blade terminals and male terminal interface
  • Copper alloy conductors for strong electrical conductivity and reduced resistance
  • 100% tested for mechanical and electrical switching performance

Detailed Description

The Standard Ignition NS-302 neutral safety switch is engineered for vehicles that require accurate park/neutral signal operation to allow starter engagement only in the correct transmission range. Built with metal construction and copper alloy conductors, it supports stable electrical transfer and consistent switching performance. This part number, NS-302, is a practical replacement choice for 2003-2004 Oldsmobile Silhouette and Pontiac Montana applications, as well as 2003 Pontiac Bonneville and Grand Prix models.

This part cross-references DR4141 and NS6783 for the same application.

What It Helps Fix

  • Engine will not crank in Park or Neutral
  • Starter engages inconsistently
  • Transmission range signal problems
  • Intermittent no-start condition related to the safety switch
  • Incorrect park/neutral switch electrical output

Installation Notes and Tips

Confirm connector style, terminal count, and bolt-mount location before installation. Verify the transmission is in the correct range and inspect the harness connector for corrosion, bent terminals, or heat damage. After installing NS-302, check starter operation in Park and Neutral and confirm proper electrical switching across the range positions.

Quality Assurance

Standard Ignition builds this switch with robust materials and copper alloy conductors, then tests each unit for mechanical and electrical switching performance. That validation helps support dependable operation in service applications.

This part fits 6 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelTransmissionLitersCylindersPositionNotes
2004OldsmobileSilhouetteAutomatic——N/A—
2004PontiacMontana———N/A—
2003OldsmobileSilhouetteAutomatic——N/A—
2003PontiacBonnevilleAutomatic——N/A—
2003PontiacGrand Prix———N/A—
2003PontiacMontana—3.4LV6N/A—
Directly replaces or cross-references 6 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
1S516553-3156924222729DR4141NS6783NS38003