Standard Ignition Neutral Safety Switch NS-634
Standard Ignition Neutral Safety Switch NS-634 - view 2
Standard Ignition Neutral Safety Switch NS-634 - view 3
Standard Ignition Neutral Safety Switch NS-634
Standard Ignition Neutral Safety Switch NS-634 - view 2
Standard Ignition Neutral Safety Switch NS-634 - view 3

Standard Ignition Neutral Safety Switch P/N:NS-634

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$56.99
MPN: NS-634
UPC: 727943277374
Item Package Quantity: 1
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Standard Ignition Neutral Safety Switch P/N:NS-634
Standard Ignition Neutral Safety Switch P/N:NS-634
$56.99

Get your engine cranking only when it should with the Standard Ignition Neutral Safety Switch NS-634. It installs as a direct-fit replacement for the 2006-2010 Hyundai Accent, providing the safety interlock that lets the starter engage only when the automatic transmission is in Park or Neutral.

  • Safety interlock: Signals the starting circuit so the engine can crank only in the Park or Neutral positions, helping prevent an unintended start while in gear.
  • Direct-fit replacement: Designed to replace the original neutral safety switch on the listed application.
  • Simple swap: A straightforward replacement for a worn or failed original switch.

Common signs the switch may need replacing include an engine that won't crank in Park or Neutral, cranking in other gear positions, or intermittent no-start conditions. These symptoms can have other causes, so diagnose the circuit before replacing — if a faulty neutral safety switch is the cause, NS-634 replaces it.

Interchange: CSW531 · NS7036 · 9317023000

Manufacturer part number NS-634 (also NS634).

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

CSW531, NS7036, 9317023000, NS-634

Frequently Asked Questions

What does this neutral safety switch do?

It lets the starter engage only when the automatic transmission is in Park or Neutral, helping prevent the engine from cranking while the vehicle is in gear.

Which vehicles does the NS-634 fit?

It is a direct-fit replacement for the 2006-2010 Hyundai Accent. Check the Buyer's Guide tab to confirm fitment for your vehicle.

What are signs my neutral safety switch may be failing?

Signs may include the engine not cranking in Park or Neutral, cranking in other gear positions, or intermittent no-start conditions. Diagnose the cause before replacing.

What numbers does this part interchange with?

It cross-references CSW531, NS7036, and 9317023000. The manufacturer part number is NS-634.

Will replacing this switch fix my no-start problem?

A no-start can have several causes. If a faulty neutral safety switch is the cause, installing NS-634 replaces it, so diagnose the circuit first.

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