Standard Ignition Clutch Starter Safety Switch NS-146
Standard Ignition Clutch Starter Safety Switch NS-146 - view 2
Standard Ignition Clutch Starter Safety Switch NS-146 - view 3
Standard Ignition Clutch Starter Safety Switch NS-146 - view 4
Standard Ignition Clutch Starter Safety Switch NS-146 - view 5
Standard Ignition Clutch Starter Safety Switch NS-146 - view 6
Standard Ignition Clutch Starter Safety Switch NS-146
Standard Ignition Clutch Starter Safety Switch NS-146 - view 2
Standard Ignition Clutch Starter Safety Switch NS-146 - view 3
Standard Ignition Clutch Starter Safety Switch NS-146 - view 4
Standard Ignition Clutch Starter Safety Switch NS-146 - view 5
Standard Ignition Clutch Starter Safety Switch NS-146 - view 6

Standard Ignition Clutch Starter Safety Switch P/N:NS-146

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$84.99
MPN: NS-146
Item Package Quantity: 1
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Standard Ignition Clutch Starter Safety Switch P/N:NS-146
Standard Ignition Clutch Starter Safety Switch P/N:NS-146
$84.99

Help keep your truck's starter from engaging unless the clutch pedal is pushed in with the Standard Ignition Clutch Starter Safety Switch, part number NS-146. It is a direct-fit replacement for these listed applications: the 1997-2003 and 2005-2008 Ford F-150, the 2004 Ford F-150 Heritage, and the 2006-2007 Ford F-250 Super Duty and F-350 Super Duty. See the Buyer's Guide tab for engine-specific details.

The switch is designed to complete the starter circuit only when the clutch pedal is depressed. This helps keep the engine from cranking while the transmission may be in gear.

  • Copper alloy conductors: provide strong electrical conductivity with low resistive losses.
  • 100% tested: each part is checked to verify both its mechanical and its electrical switching performance.
  • Quality control throughout: as a global manufacturer of original equipment ignition products, Standard Ignition oversees production from componentry to the finished product.
  • Built for technicians: the switch has a robust design and high-grade materials, backed by decades of research and development focused on the technician's needs.

Signs this part may need replacing include an engine that won't crank with the clutch fully depressed, an intermittent no-crank condition, or a starter that engages without the clutch pressed. Diagnose the starting circuit before replacing the switch, because other components can cause similar symptoms.

Interchange: S26367 · F4006 · NS5878 · 1L3Z11A152AA · 3L3Z11A152AA · 4L3Z11A152A · 5L3Z11A152AA · 5L3Z11A152AB · 6L3Z11A152AA · 6L3Z11A152BA · F65Z7641AA · SW6028 · SW6139 · SW6181 · SW6238 · SW6328 · SW6329 · SW6387

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

S26367, F4006, NS5878, 1L3Z11A152AA, 3L3Z11A152AA, 4L3Z11A152A, 5L3Z11A152AA, 5L3Z11A152AB, 6L3Z11A152AA, 6L3Z11A152BA, F65Z7641AA, SW6028, SW6139, SW6181, SW6238, SW6328, SW6329, SW6387

Frequently Asked Questions

What does a clutch starter safety switch do?

It lets the starter circuit close only when the clutch pedal is depressed. This is designed to keep the engine from cranking while the transmission may be in gear.

Which vehicles does the NS-146 fit?

It is listed for the 1997-2003 and 2005-2008 Ford F-150, the 2004 Ford F-150 Heritage, and the 2006-2007 Ford F-250 Super Duty and F-350 Super Duty. See the Buyer's Guide tab for engine details.

What signs suggest this switch may need replacing?

Warning signs include an engine that won't crank with the clutch pressed, an intermittent no-crank condition, or cranking without the clutch pressed. Other starting-circuit faults can cause the same symptoms, so diagnose first.

Is the switch tested?

Yes. Standard Ignition states that its parts are 100% tested to verify both mechanical and electrical switching performance.

What part numbers does NS-146 replace?

It cross-references numbers including S26367, F4006, NS5878, 1L3Z11A152AA, 6L3Z11A152BA, F65Z7641AA and SW6028. The full list is on the Interchange line in the description.

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