Standard Ignition Neutral Safety Switch NS-642
Standard Ignition Neutral Safety Switch NS-642 - view 2
Standard Ignition Neutral Safety Switch NS-642 - view 3
Standard Ignition Neutral Safety Switch NS-642
Standard Ignition Neutral Safety Switch NS-642 - view 2
Standard Ignition Neutral Safety Switch NS-642 - view 3

Neutral Safety Switch for 2007-2010 Suzuki SX4 - Standard Ignition NS-642

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$325.99
MPN: NS-642
UPC: 727943492401
Item Package Quantity: 1
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Standard Ignition Neutral Safety Switch P/N:NS-642
Standard Ignition Neutral Safety Switch P/N:NS-642
$325.99

Designed to let the engine crank only when the shifter is in Park or Neutral, this Standard Ignition switch is the Neutral Safety Switch, part number NS-642. It installs as a direct-fit replacement for the 2007-2010 Suzuki SX4 and is made to OE spec for proper fit, form and function. See the Buyer's Guide tab for engine details.

  • Built to OE spec: Standard Ignition makes its switches to original-equipment specification for proper fit, form and function.
  • Copper alloy conductors: Provide superior electrical conductivity with low resistive losses.
  • Direct-fit, electrically operated: Replaces a damaged OE unit and is intended to bring back the neutral safety function in the starting circuit.
  • Robust design: High-grade materials are chosen to meet the demanding needs of today's service professional.

A neutral safety switch completes the starting circuit only when the transmission is in Park or Neutral. This keeps the starter from engaging while the vehicle is in gear. Signs this part may need replacing include:

  • No crank in Park, although the engine starts in Neutral
  • An intermittent no-start
  • A starter that engages while the vehicle is in gear

These symptoms can also come from other starting-circuit faults, so diagnose the cause before replacing the switch. If a failed neutral safety switch is the cause, NS-642 replaces it.

Interchange: CSW539 · SW4660 · NS7044 · 3772059J10

This part cross-references / interchanges with the following part numbers:

CSW539, SW4660, NS7044, NS-642, 3772059J10

Frequently Asked Questions

What does a neutral safety switch do?

It completes the starting circuit only when the transmission is in Park or Neutral. It is designed to keep the starter from engaging while the vehicle is in gear.

Will the Standard Ignition NS-642 fit my 2007-2010 Suzuki SX4?

It is listed as a direct-fit replacement for the 2007-2010 Suzuki SX4. See the Buyer's Guide tab for engine details.

What are signs a neutral safety switch may need replacing?

Common signs are no crank in Park, a start only in Neutral, an intermittent no-start, or cranking in gear. Other starting-circuit faults can cause these too, so diagnose first.

What conductors does this switch use?

It uses copper alloy conductors for superior electrical conductivity with low resistive losses.

Which part numbers does NS-642 interchange with?

It cross-references CSW539, SW4660, NS7044 and 3772059J10.

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