Standard Ignition NS-63 Clutch Starter Safety Switch

Brand Standard Ignition NS-63
Color Gray, White
Connector Gender Female; Female
Finish Plastic
Terminal Gender Male
Terminal Type Blade
Fits Ford · 19 vehicles

Copper alloy conductors. Deliver strong conductivity with low resistive losses.

100% tested. Verifies mechanical and electrical switching performance.

Blade terminals. Female connector with four male blade terminals.

Cross-references 1S5353, 53-12628 and 88923353 for the same application. See all 9.

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Clutch Starter Safety Switch for Mustang

The Standard Ignition NS-63 clutch starter safety switch is built for Ford Mustang applications that require a reliable clutch-interlock signal before the starter circuit engages. It uses a gray and white plastic finish, a female connector, and 4 blade terminals with male terminal ends for a direct electrical connection.

Fits 1986-2004 Ford Mustang, N/A. This Standard Ignition NS-63 part is a practical choice for Mustang owners addressing clutch-start circuit faults, intermittent no-crank conditions, or switch-related starting concerns.

Key Features

  • Clutch starter safety switch for Ford Mustang applications
  • Gray and white housing with plastic finish
  • 1 connector with female connector gender
  • 4 blade terminals with male terminal gender
  • Copper alloy conductors for strong electrical conductivity and low resistive loss
  • 100% tested for mechanical and electrical switching performance
  • Standard Ignition NS-63 for service and replacement use

Detailed Description

Standard Ignition NS-63 is engineered for the clutch-start circuit on 1986-2004 Ford Mustang models. The switch is designed with robust materials and copper alloy conductors to maintain consistent electrical transfer at the starter interlock point. For technicians and DIY repairs, this helps restore proper clutch pedal input to the starting system when the original switch is worn, damaged, or electrically inconsistent. This part cross-references Ford E6ZZ11A152A and Standard Motor Products NS244 for the same application.

Common Repair Symptoms

  • No-crank condition when the clutch pedal is pressed
  • Intermittent starter engagement on Mustang models
  • Starter circuit interruption caused by a worn clutch safety switch
  • Electrical switching faults at the clutch interlock point
  • Starting issues related to damaged terminals or connector wear

Installation Notes and Tips

Verify connector style, terminal layout, and vehicle year before installation. Inspect the clutch pedal switch mounting area and wiring for heat damage, corrosion, or loose terminals before connecting the new unit. Confirm proper switch adjustment and test starter operation after installation on the Ford Mustang.

Quality Assurance

Standard Ignition backs this switch with a design approach focused on technician needs, using durable materials and tested switching performance for dependable service in the field.

This part fits 19 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelPositionNotes
2004FordMustangN/A
2003FordMustangN/A
2002FordMustangN/A
2001FordMustangN/A
2000FordMustangN/A
1999FordMustangN/A
1998FordMustangN/A
1997FordMustangN/A
1996FordMustangN/A
1995FordMustangN/A
1994FordMustangN/A
1993FordMustangN/A
1992FordMustangN/A
1991FordMustangN/A
1990FordMustangN/A
1989FordMustangN/A
1988FordMustangN/A
1987FordMustangN/A
1986FordMustangN/A
Directly replaces or cross-references 9 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
1S535353-1262888923353E6ZZ11A152AF464NS244NS6429S9260SW2063