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Standard Ignition NS-123 Neutral Safety Switch
| Brand | Standard Ignition 235-1222 |
|---|---|
| Connector Gender | Male |
| Connector Shape | Rectangular |
| Mounting Bracket Included | Yes |
| Terminal Quantity | 3 |
| Fits | —30 vehicles |
Copper alloy conductors. Deliver superior electrical conductivity with low resistive losses.
100% tested. Verified for mechanical and electrical switching performance.
Robust design. Built with high-grade materials for demanding service work.
Cross-references 1S7051, 53-31606 and 88923336 for the same application. See all 10.
Neutral Safety Switch for Ford, Mazda, and Mercury
Standard Ignition NS-123 is a neutral safety switch built for precise electrical switching in automatic transmission applications. It uses copper alloy conductors for strong conductivity and low resistive loss, with 100% testing of mechanical and electrical function before release.
Compatible With Ford Escort, Mazda MPV, Mercury Tracer, Mazda 323, Mazda Protege, and Mazda MX-3 applications across the listed model years, this NS-123 neutral safety switch supports reliable start-in-park or start-in-neutral operation where the vehicle’s original switch has worn or failed.
Key Features
- Female connector with 1 connector interface
- 9 male blade terminals for secure electrical connection
- Robust construction for service use
- Copper alloy conductors for efficient current transfer
- 100% tested for mechanical and electrical switching performance
- Standard Ignition NS-123 replacement part number
Detailed Description
The Standard Ignition NS-123 neutral safety switch is engineered for dependable transmission-range signaling and starter interlock operation. Its design focuses on consistent switching performance and durable electrical contact, making it a practical replacement for vehicles that rely on a properly functioning neutral safety circuit. This part cross-references 1S7051 and NS223 for the same application.
Vehicle coverage includes 1997-2003 Ford Escort, 2000-2001 Mazda MPV, 1991-1999 Mercury Tracer, 1991-1994 Mazda 323, 1990-1994 Mazda Protege, and 1992-1993 Mazda MX-3. If you are searching for a neutral safety switch for Ford Escort or Mazda Protege starting issues tied to the transmission range circuit, NS-123 is built for that service need.
What It Helps Fix
- No-crank condition when the shifter is in Park or Neutral
- Intermittent starter engagement caused by worn switch contacts
- Incorrect transmission range signal to the starting circuit
- Electrical switching faults in the neutral safety circuit
- Starting problems on Ford Escort, Mazda MPV, Mercury Tracer, Mazda 323, Mazda Protege, and Mazda MX-3 applications
Installation Notes and Tips
Verify connector style, terminal count, and transmission application before installation. For 2000-2001 Mazda MPV, confirm alternator compatibility prior to purchase for proper fit. Compare the original switch location and connector layout to the NS-123 before connecting the harness.
Quality Assurance
Standard Ignition builds this switch with service-grade materials and validates both electrical and mechanical operation through testing. The brand’s long-running development focus is centered on technician requirements and dependable replacement performance.
| Year | Make | Model | Drive Type | Transmission | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|---|---|
| 2003 | Ford | Escort | — | — | 2.0L | L4 | N/A | — |
| 2003 | Ford | Escort | — | Automatic | — | — | N/A | — |
| 2002 | Ford | Escort | — | Automatic | — | — | N/A | — |
| 2001 | Ford | Escort | — | Automatic | — | — | N/A | — |
| 2001 | Mazda | MPV | — | — | 2.5L | V6 | N/A | Prior to purchase, ensure compatibility with vehicle's alternator for proper fit. |
| 2000 | Ford | Escort | — | Automatic | — | — | N/A | — |
| 2000 | Mazda | MPV | — | — | 2.5L | V6 | N/A | Prior to purchase, ensure compatibility with vehicle's alternator for proper fit. |
| 1999 | Ford | Escort | — | Automatic | — | — | N/A | — |
| 1999 | Mercury | Tracer | — | Automatic | — | — | N/A | — |
| 1998 | Ford | Escort | — | Automatic | — | — | N/A | — |
| 1998 | Mercury | Tracer | — | Automatic | — | — | N/A | — |
| 1997 | Ford | Escort | — | Automatic | — | — | N/A | — |
| 1997 | Mercury | Tracer | — | Automatic | — | — | N/A | — |
| 1996 | Mercury | Tracer | — | Automatic | — | — | N/A | — |
| 1995 | Mercury | Tracer | — | Automatic | — | — | N/A | — |
| 1994 | Mazda | 323 | — | Automatic | — | — | N/A | — |
| 1994 | Mazda | Protege | — | Automatic | — | — | N/A | — |
| 1994 | Mercury | Tracer | — | Automatic | — | — | N/A | — |
| 1993 | Mazda | 323 | — | Automatic | — | — | N/A | — |
| 1993 | Mazda | MX-3 | — | Automatic | — | — | N/A | — |
| 1993 | Mazda | Protege | — | Automatic | — | — | N/A | — |
| 1993 | Mercury | Tracer | — | Automatic | — | — | N/A | — |
| 1992 | Mazda | 323 | — | Automatic | — | — | N/A | — |
| 1992 | Mazda | MX-3 | — | Automatic | — | — | N/A | — |
| 1992 | Mazda | Protege | — | Automatic | — | — | N/A | — |
| 1992 | Mercury | Tracer | — | Automatic | — | — | N/A | — |
| 1991 | Mazda | 323 | — | Automatic | — | — | N/A | — |
| 1991 | Mazda | Protege | FWD | Automatic | — | — | N/A | — |
| 1991 | Mercury | Tracer | — | Automatic | — | — | N/A | — |
| 1990 | Mazda | Protege | FWD | Automatic | — | — | N/A | — |
| No rows match your filter. | ||||||||