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SKP SKNS504 Neutral Safety Switch
| Brand | SKP SKNS504 |
|---|---|
| Fits | Lexus and Toyota · 38 vehicles |
Neutral safety switch. Helps prevent starting unless the transmission is in Park or Neutral.
Will it fit your vehicle?
Free return shipping if it doesn't fit.
Neutral Safety Switch for Toyota and Lexus
SKP SKNS504 is a neutral safety switch for select Toyota and Lexus applications. It is used in the starting circuit to help ensure the vehicle starts only in Park or Neutral, supporting proper transmission range signal operation.
Key Features
- Neutral safety switch for automatic transmission starting circuit control
- Fits select 2005-2015 Toyota Tacoma, 2005-2006 Toyota Tundra, and 2005-2007 Toyota Sequoia
- Also fits select 2011-2014 Toyota FJ Cruiser and 2012-2015 Lexus IS250, IS350, LS460, and GS350 applications
- Direct-fit replacement for vehicles listed in the fitment data
- SKP SKNS504 part number for ordering and catalog matching
Detailed Description
SKP SKNS504 is a neutral safety switch built for specific Toyota and Lexus models, including Toyota Tacoma, Toyota Tundra, Toyota Sequoia, Toyota FJ Cruiser, and Lexus GS350, IS250, IS350, IS F, and LS460 applications. This switch helps communicate the transmission’s park/neutral status so the starter circuit operates correctly. If your vehicle has a no-crank condition or inconsistent start authorization tied to gear position, this part number is a direct replacement to verify against the listed fitment.
This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.
What It Is Used For
- No-crank condition when the shifter is in Park or Neutral
- Starter engagement only in the correct transmission range
- Intermittent starting caused by worn internal switch contacts
- Transmission range signal issues affecting start authorization
- Replacement of a failed neutral safety switch on Toyota and Lexus vehicles
Installation Notes and Tips
Verify the transmission type and connector style against the original part before installation. Confirm the vehicle is listed in the fitment data for SKP SKNS504, and check shifter adjustment and wiring condition during diagnosis. After installation, test starting in Park and Neutral to confirm proper operation.
Quality Assurance
SKP SKNS504 is cataloged as a replacement electrical switch for the listed Toyota and Lexus applications. Confirm fitment by year, make, and model before purchase.
| Year | Make | Model | Submodel | Transmission | Liters | Cylinders | Notes |
|---|---|---|---|---|---|---|---|
| 2015 | Lexus | GS350 | — | — | — | — | — |
| 2015 | Lexus | IS250 | — | — | — | — | — |
| 2015 | Lexus | IS350 | — | — | — | — | — |
| 2015 | Lexus | LS460 | — | — | — | — | — |
| 2015 | Toyota | Tacoma | — | Automatic | 4.0L | V6 | — |
| 2014 | Lexus | GS350 | — | — | — | — | — |
| 2014 | Lexus | IS F | — | — | — | — | — |
| 2014 | Lexus | IS250 | — | — | — | — | — |
| 2014 | Lexus | IS350 | — | — | — | — | — |
| 2014 | Lexus | LS460 | — | — | — | — | — |
| 2014 | Toyota | FJ Cruiser | — | — | — | — | — |
| 2014 | Toyota | Tacoma | — | — | 4.0L | V6 | — |
| 2013 | Lexus | GS350 | — | — | — | — | — |
| 2013 | Lexus | IS F | — | — | — | — | — |
| 2013 | Lexus | IS250 | — | — | — | — | — |
| 2013 | Lexus | IS350 | — | — | — | — | — |
| 2013 | Lexus | LS460 | — | — | — | — | — |
| 2013 | Toyota | FJ Cruiser | — | — | — | — | — |
| 2013 | Toyota | Tacoma | — | — | 4.0L | V6 | — |
| 2012 | Lexus | IS F | — | — | — | — | — |
| 2012 | Lexus | IS250 | — | — | — | — | — |
| 2012 | Lexus | IS350 | — | — | — | — | — |
| 2012 | Lexus | LS460 | — | — | — | — | — |
| 2012 | Toyota | FJ Cruiser | — | — | — | — | — |
| 2012 | Toyota | Tacoma | — | — | 4.0L | V6 | — |
| 2011 | Toyota | FJ Cruiser | — | — | — | — | — |
| 2011 | Toyota | Tacoma | Pre Runner | — | 4.0L | V6 | — |
| 2010 | Toyota | Tacoma | — | Automatic | 4.0L | V6 | — |
| 2009 | Toyota | Tacoma | Pre Runner | Automatic | 4.0L | V6 | — |
| 2008 | Toyota | Tacoma | Base | Automatic | 4.0L | V6 | — |
| 2007 | Toyota | Sequoia | — | — | 4.7L | V8 | — |
| 2007 | Toyota | Tacoma | Base | Automatic | 4.0L | V6 | — |
| 2006 | Toyota | Sequoia | — | Automatic | — | — | — |
| 2006 | Toyota | Tacoma | — | Automatic | — | — | — |
| 2006 | Toyota | Tundra | — | Automatic | — | — | — |
| 2005 | Toyota | Sequoia | — | Automatic | — | — | — |
| 2005 | Toyota | Tacoma | — | Automatic | — | — | — |
| 2005 | Toyota | Tundra | — | Automatic | — | — | — |
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