Standard Ignition NS-642 Neutral Safety Switch
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Standard Ignition

Standard Ignition NS-642 Neutral Safety Switch

Brand Standard Ignition NS-642
Color Black, Silver
Connector Gender Female
Connector Shape Rectangular
Finish Metal, Plastic
Material Metal
Mounting Type Bolt Mount
Notes Sensor Only
Terminal Gender Male
Terminal Type Blade
Fits Suzuki · 4 vehicles

Bolt-mount design. Installs securely with a simple bolt-on attachment.

Metal construction. Built with a durable metal body and plastic finish.

Sensor only. Supplied without mounting hardware or gaskets.

Cross-references Standard Ignition NS-642, 3772059J10 and CSW539 for the same application. See all 5.

$239.37Free shipping
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Neutral Safety Switch for Suzuki SX4

Standard Ignition NS-642 is a bolt-mount neutral safety switch sensor for 12V applications. It uses a 10-terminal blade layout with a single rectangular female connector and a metal/plastic housing for direct replacement service on select vehicles.

Key Features

  • Neutral safety switch, sensor only
  • Fits 2007-2010 Suzuki SX4
  • 12V electrical design
  • 10 male blade terminals
  • 1 rectangular female connector
  • Bolt-mount attachment method
  • Black and silver finish
  • Metal construction with metal/plastic finish
  • Wiring harness length: 8.75 in. (222.25 mm)
  • Overall length: 6.5 in. (165.1 mm)

Detailed Description

Standard Ignition NS-642 is built for vehicles that require a neutral safety switch sensor with a 10-wire, bolt-mounted configuration. It is listed for 2007-2010 Suzuki SX4 applications and uses a rectangular female connector with blade terminals for the electrical interface. The NS-642 part number is also referenced in interchange listings for service matching.

This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

What It Helps Fix

  • Engine cranks only in certain gear positions
  • No-crank condition when the transmission is in park or neutral
  • Intermittent starter engagement related to the neutral safety circuit
  • Transmission range signal issues tied to the switch sensor
  • Starting problems on 2007-2010 Suzuki SX4 models

Installation Notes and Tips

Verify connector style, terminal count, and bolt-mount location before installation. This is a sensor-only component, so reuse or source any related mounting or sealing parts separately if required by the vehicle. Confirm the transmission is in the correct position and check the harness routing against the 8.75-inch lead length before final assembly.

Quality Assurance

Standard Ignition NS-642 is manufactured as an electrical replacement part for service use on the listed Suzuki SX4 model years. Confirm fitment by matching the vehicle year, connector shape, terminal layout, and mounting style before ordering.

Related reading

This part fits 4 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelPositionNotes
2010SuzukiSX4N/A—
2009SuzukiSX4N/A—
2008SuzukiSX4N/A—
2007SuzukiSX4N/A—
Directly replaces or cross-references 5 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Standard Ignition — NS-6423772059J10CSW539NS7044SW4660