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Standard Ignition NS-651 Neutral Safety Switch
| Brand | Standard Ignition NS-651 |
|---|---|
| Connector Gender | Female |
| Material | Plastic |
| Mounting Type | Bolt Mount |
| Terminal Gender | Male |
| Terminal Type | Pin |
| Fits | Ford · 20 vehicles |
OE-spec direct fit. Restores neutral safety function with proper fit, form, and function.
Copper alloy conductors. Deliver strong conductivity with low resistive losses.
Bolt mount design. Installs securely with a single female connector and pin terminals.
Cross-references 5S13394, AE8Z7F293A and CSW548 for the same application. See all 6.
Neutral Safety Switch for Ford Fiesta and Focus
Restore proper park/neutral start interlock function with this Standard Ignition neutral safety switch. The NS-651 is a direct-fit electrical replacement built to OE specifications for proper fit, form, and function on select Ford applications.
- Direct-fit replacement neutral safety switch
- OE-spec design for correct mounting and electrical connection
- Copper alloy conductors for strong electrical conductivity and low resistive loss
- Female connector with 1 connector, 4 male pin terminals
- Bolt-mount design with durable plastic housing
Detailed Product Overview
Standard Ignition NS-651 is engineered for vehicles that need a reliable replacement for a damaged or failing neutral safety switch. It is built to restore the starter interlock function that helps prevent engine cranking outside of Park or Neutral, supporting safer operation in everyday driving. This part is a fit for 2011-2019 Ford Fiesta and 2012-2018 Ford Focus applications, making it a practical choice when servicing Ford Fiesta and Focus starting or shift-position electrical concerns. The NS-651 uses copper alloy conductors to maintain conductivity and reduce resistive losses, while the OE-spec construction helps ensure consistent installation and operation.
This part cross-references 5S13394 and AE8Z7F293A for the same application.
What It Helps Fix
- Engine will not crank in Park or Neutral
- Intermittent no-start condition related to shift position
- Starter interlock faults caused by a worn switch
- Incorrect park/neutral signal to the vehicle electrical system
- Replacement needs after damage to the original OE unit
Installation Notes and Tips
Verify connector style, terminal layout, and bolt-mount location before installation. Confirm the transmission is in the correct position and follow the vehicle service procedure for alignment and adjustment if required. For Ford Fiesta and Ford Focus repairs, matching the OE-style electrical interface helps support proper operation after replacement.
Quality Assurance
Standard Ignition builds this neutral safety switch to OE specification using robust materials intended to meet the demands of professional service work. The NS-651 is designed as a direct replacement for select Ford Fiesta and Focus applications.
| Year | Make | Model | Liters | Cylinders | Fuel Type | Position | Notes |
|---|---|---|---|---|---|---|---|
| 2019 | Ford | Fiesta | — | — | — | N/A | — |
| 2018 | Ford | Fiesta | — | — | — | N/A | — |
| 2018 | Ford | Focus | 1.0L | L3 | GAS | N/A | — |
| 2017 | Ford | Fiesta | — | — | — | N/A | — |
| 2017 | Ford | Focus | — | — | FLEX | N/A | — |
| 2017 | Ford | Focus | — | — | GAS | N/A | — |
| 2016 | Ford | Fiesta | — | — | — | N/A | — |
| 2016 | Ford | Focus | — | — | FLEX | N/A | — |
| 2016 | Ford | Focus | — | — | GAS | N/A | — |
| 2015 | Ford | Fiesta | — | — | — | N/A | — |
| 2015 | Ford | Focus | — | — | FLEX | N/A | — |
| 2015 | Ford | Focus | — | — | GAS | N/A | — |
| 2014 | Ford | Fiesta | — | — | — | N/A | — |
| 2014 | Ford | Focus | — | — | GAS | N/A | — |
| 2013 | Ford | Fiesta | — | — | — | N/A | — |
| 2013 | Ford | Focus | — | — | GAS | N/A | — |
| 2012 | Ford | Fiesta | — | — | — | N/A | — |
| 2012 | Ford | Focus | — | — | FLEX | N/A | — |
| 2012 | Ford | Focus | — | — | GAS | N/A | — |
| 2011 | Ford | Fiesta | — | — | — | N/A | — |
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