Standard Ignition Neutral Safety Switch P/N:NS-139

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$172.99
MPN: NS-139
Item Package Quantity: 1
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Standard Ignition Neutral Safety Switch P/N:NS-139
Standard Ignition Neutral Safety Switch P/N:NS-139
$172.99

The Standard Ignition Neutral Safety Switch NS-139 keeps the starter from cranking your engine unless the transmission is in Park or Neutral, and on many applications it also completes the back-up lamp circuit. It installs as a direct-fit replacement for the 1999-2000 Lexus SC300 and SC400; 1995-2001 Toyota 4Runner; 1995-1999 Toyota Land Cruiser; 1994-1996 Toyota Previa; 1993-1998 Toyota Supra; 1993-1998 Toyota T100; and 1997-2000 and 2004 Toyota Tacoma. See the Buyer's Guide tab for engine specifics.

  • Copper alloy conductors: provide strong electrical conductivity with low resistive losses.
  • 100% tested: each switch is verified for both mechanical and electrical switching performance.
  • Robust design: high-grade materials built to meet the demands of today's service professional.
  • OE-quality build: from a global manufacturer of original-equipment ignition products with quality control throughout the process.

If a failed neutral safety switch is the cause of a no-crank in Park or Neutral, cranking in gear, or inoperative back-up lamps, this replaces it. Diagnose the cause before replacing.

Interchange: S26135 · 8849 · JA4063 · NS5628 · MR166194 · 8454030270 · 8454030280

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

S26135, 8849, JA4063, NS5628, MR166194, NS-139, 8454030270, 8454030280

Frequently Asked Questions

What does a neutral safety switch do?

It allows the engine to crank only when the transmission is in Park or Neutral, and on many vehicles it also completes the back-up lamp circuit when in reverse.

Does the NS-139 fit my vehicle?

It's a direct-fit replacement for applications including the Lexus SC300/SC400, Toyota 4Runner, Land Cruiser, Previa, Supra, T100 and Tacoma. Check the Buyer's Guide tab to confirm your year and engine.

What are signs this switch may need replacing?

Common signs are a no-crank condition in Park or Neutral, the engine cranking while in gear, or back-up lamps that don't work. Diagnose the cause before replacing.

What numbers does this part interchange with?

It cross-references S26135, 8849, JA4063, NS5628, MR166194, 8454030270 and 8454030280.

Is this switch tested before shipping?

Yes. Standard Ignition states each switch is 100% tested to verify both mechanical and electrical switching performance.