Standard Ignition NS-88 Clutch Starter Safety Switch

Brand Standard Ignition NS-88
Connector Gender Female; Female
Terminal Gender Male
Terminal Type Blade
Fits Chevrolet and GMC · 21 vehicles

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

100% tested. Verifies mechanical and electrical switching performance.

Robust design. Built with high-grade materials for service professionals.

Cross-references 1S5101, 53-31549 and 15569768 for the same application. See all 7.

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Clutch Starter Safety Switch for GM Trucks

The Standard Ignition NS-88 is a clutch starter safety switch built for manual-transmission starting circuits. It uses female connectors, male blade terminals, and copper alloy conductors to support reliable electrical transfer in demanding service conditions.

Compatible With 1982-1988 GMC S15, 1983-1988 Chevrolet S10, 1983-1988 Chevrolet S10 Blazer, and 1983-1984 GMC S15 Jimmy, this NS-88 switch is a direct-fit electrical service part for the listed applications.

Key Features

  • Clutch starter safety switch for manual-start interlock operation
  • Female connector design with 2 connector cavities
  • Male blade terminals for secure electrical connection
  • Copper alloy conductors for low-resistance current flow
  • 100% tested for mechanical switching and electrical performance
  • Built with durable materials for service use

Detailed Description

Standard Ignition NS-88 is engineered for vehicles that use a clutch-operated starter safety circuit, helping ensure the starter engages only when the clutch is in the proper position. The switch construction focuses on consistent contact performance, with copper alloy conductors selected to reduce resistive losses and support dependable signal transfer. For technicians servicing Chevrolet S10 and S10 Blazer models or GMC S15 and S15 Jimmy applications, the NS-88 provides a fitment-specific replacement option that matches the listed connector and terminal configuration.

This part cross-references 1S5101 and DR4069 for the same application.

What It Helps Fix

  • No-crank condition when the clutch pedal is pressed
  • Intermittent starter engagement on manual-transmission vehicles
  • Starter circuit interruption caused by worn switch contacts
  • Electrical switching issues at the clutch safety interlock
  • Starting problems related to damaged connector or terminal interfaces

Installation Notes and Tips

Verify connector style, terminal layout, and vehicle fitment before installation. Confirm the clutch pedal switch location and inspect the harness connectors for corrosion, looseness, or heat damage before connecting the new part. After installation, test starter engagement and clutch interlock operation to confirm proper switching.

Quality Assurance

Standard Ignition states that this switch is fully tested for both mechanical action and electrical switching performance. The NS-88 is built with robust materials and copper alloy conductors to meet service demands in the field.

This part fits 21 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelPositionNotes
1988ChevroletS10N/A
1988ChevroletS10 BlazerN/A
1988GMCS15N/A
1987ChevroletS10N/A
1987ChevroletS10 BlazerN/A
1987GMCS15N/A
1986ChevroletS10N/A
1986ChevroletS10 BlazerN/A
1986GMCS15N/A
1985ChevroletS10N/A
1985ChevroletS10 BlazerN/A
1985GMCS15N/A
1984ChevroletS10N/A
1984ChevroletS10 BlazerN/A
1984GMCS15N/A
1984GMCS15 JimmyN/A
1983ChevroletS10N/A
1983ChevroletS10 BlazerN/A
1983GMCS15N/A
1983GMCS15 JimmyN/A
1982GMCS15N/A
Directly replaces or cross-references 7 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
1S510153-3154915569768DR4069NS78NS6445S9276