HomeElectrical, Lighting and Body > SwitchesStandard Ignition NS-205 Clutch Starter Safety Switch
Part #: NS-205

Standard Ignition NS-205 Clutch Starter Safety Switch

⚙️ 93 vehicles fit this part
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Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Chevrolet and GMC, Silverado 1500, Silverado 2500 HD, Silverado 3500, Sierra 1500, Sierra 1500 HD Classic, Sierra 2500 HD, Sierra 3500, Blazer, Jimmy, S10, Silverado 2500, Sierra 2500, Sonoma, Silverado 1500 HD, Sierra 1500 HD, C2500, C3500, K2500, K3500, C1500, and K1500
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Overview of Standard Ignition Clutch Starter Safety Switch NS-205

The Standard Ignition NS-205 clutch starter safety switch is designed for reliable operation in select Chevrolet and GMC trucks and SUVs. This switch ensures proper clutch engagement before engine start, enhancing vehicle safety and functionality.

  • Compatible with Chevrolet and GMC models including Silverado, Sierra, Blazer, Jimmy, Sonoma, and C/K series trucks
  • Durable plastic finish in black and white for corrosion resistance
  • Female connector with six male blade terminals for secure electrical connections
  • Part number NS-205 for precise identification and fitment

Product Features and Specifications

The NS-205 clutch starter safety switch features a plastic housing finished in black and white, designed to withstand typical under-dash conditions. It includes a female connector interface and six male blade terminals, ensuring compatibility with factory wiring harnesses. The blade terminal type supports a secure and stable electrical connection, critical for the clutch interlock system.

Compatible Vehicles and Fitment Details

This clutch starter safety switch is compatible with a range of Chevrolet and GMC vehicles, including the Chevrolet Blazer, Silverado 1500 (Classic and HD variants), Sierra 1500, 2500, and 3500 series, as well as GMC Jimmy, Sonoma, and C/K series trucks such as C1500, C2500, C3500, K1500, K2500, and K3500. The NS-205 part number ensures exact fitment for these models, maintaining factory safety standards.

Common Applications and Problem Resolution

  • Prevents engine start unless the clutch pedal is fully depressed
  • Resolves issues with engine cranking failure related to clutch safety switch malfunction
  • Eliminates intermittent starting problems caused by faulty switch contacts
  • Restores proper operation of the clutch interlock system in Chevrolet and GMC trucks
  • Helps maintain compliance with vehicle safety interlock requirements

Installation Notes and Tips

Installation of the Standard Ignition NS-205 clutch starter safety switch requires access to the clutch pedal assembly area. Ensure the vehicle battery is disconnected before beginning installation to prevent electrical shorts. Connect the female connector to the vehicle wiring harness and verify that all six male blade terminals are properly seated. Test the switch operation by confirming the engine only starts when the clutch pedal is fully depressed.

Quality Assurance and Warranty Information

Standard Ignition parts are manufactured to meet or exceed OEM specifications. The NS-205 clutch starter safety switch undergoes rigorous quality control to ensure durability and reliable performance. This part is backed by Standard Ignition's limited warranty, providing coverage against defects in material and workmanship under normal use.

BrandStandard Ignition
Part NumberNS-205
ColorBlack, White
Connector GenderFemale
ContentsClutch Starter Safety Switch
FinishPlastic
Terminal GenderMale
Terminal TypeBlade

This part fits 93 vehicles. Search below:

YearMakeModelTransmissionPositionNotes
2007ChevroletSilverado 1500N/A
2007ChevroletSilverado 1500 ClassicN/A
2007ChevroletSilverado 2500 HDN/A
2007ChevroletSilverado 3500N/A
2007GMCSierra 1500N/A
2007GMCSierra 1500 HD ClassicN/A
2007GMCSierra 2500 HDN/A
2006ChevroletSilverado 1500ManualN/A
2006ChevroletSilverado 2500 HDManualN/A
2006ChevroletSilverado 3500ManualN/A
2006GMCSierra 1500ManualN/A
2006GMCSierra 1500 HDN/A
2006GMCSierra 2500 HDManualN/A
2006GMCSierra 3500ManualN/A
2005ChevroletBlazerN/A
2005ChevroletSilverado 1500ManualN/A
2005ChevroletSilverado 2500 HDManualN/A
2005ChevroletSilverado 3500ManualN/A
2005GMCJimmyN/A
2005GMCSierra 1500ManualN/A
2005GMCSierra 1500 HDN/A
2005GMCSierra 2500 HDManualN/A
2005GMCSierra 3500ManualN/A
2004ChevroletBlazerN/A
2004ChevroletS10N/A
2004ChevroletSilverado 1500ManualN/A
2004ChevroletSilverado 2500ManualN/A
2004ChevroletSilverado 2500 HDManualN/A
2004ChevroletSilverado 3500ManualN/A
2004GMCJimmyN/A
2004GMCSierra 1500ManualN/A
2004GMCSierra 2500ManualN/A
2004GMCSierra 2500 HDManualN/A
2004GMCSierra 3500ManualN/A
2004GMCSonomaN/A
2003ChevroletBlazerN/A6 Pin
2003ChevroletS10N/A6 Pin
2003ChevroletSilverado 1500ManualN/A
2003ChevroletSilverado 2500ManualN/A
2003ChevroletSilverado 2500 HDManualN/A
2003ChevroletSilverado 3500ManualN/A
2003GMCJimmyN/A6 Pin
2003GMCSierra 1500ManualN/A
2003GMCSierra 1500 HDN/A
2003GMCSierra 2500ManualN/A
2003GMCSierra 2500 HDManualN/A
2003GMCSierra 3500ManualN/A
2003GMCSonomaN/A6 Pin
2002ChevroletBlazerN/A6 Pin
2002ChevroletS10N/A6 Pin
2002ChevroletSilverado 1500ManualN/A
2002ChevroletSilverado 1500 HDManualN/A
2002ChevroletSilverado 2500ManualN/A
2002ChevroletSilverado 2500 HDManualN/A
2002ChevroletSilverado 3500ManualN/A
2002GMCJimmyN/A6 Pin
2002GMCSierra 1500ManualN/A
2002GMCSierra 1500 HDN/A
2002GMCSierra 2500ManualN/A
2002GMCSierra 2500 HDManualN/A
2002GMCSierra 3500ManualN/A
2002GMCSonomaN/A6 Pin
2001ChevroletBlazerN/A6 Pin
2001ChevroletC1500N/A
2001ChevroletS10N/A6 Pin
2001ChevroletSilverado 1500ManualN/A
2001ChevroletSilverado 2500N/A
2001ChevroletSilverado 2500 HDN/A
2001ChevroletSilverado 3500N/A
2001GMCSierra 1500N/A
2001GMCSierra 1500 HDN/A
2001GMCSierra 2500N/A
2001GMCSierra 2500 HDN/A
2001GMCSierra 3500N/A
2001GMCSonomaN/A6 Pin
2000ChevroletSilverado 1500N/A
2000ChevroletSilverado 2500N/A
2000GMCC2500N/A
2000GMCC3500N/A
2000GMCK2500N/A
2000GMCK3500N/A
2000GMCSierra 1500N/A
2000GMCSierra 2500N/A
1999ChevroletSilverado 1500N/A
1999ChevroletSilverado 2500N/A
1999GMCC1500N/A
1999GMCC2500N/A
1999GMCC3500N/A
1999GMCK1500N/A
1999GMCK2500N/A
1999GMCK3500N/A
1999GMCSierra 1500N/A
1999GMCSierra 2500N/A

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

150279671S1188653-12616DR4105NS385NS5889S26386

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.