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Standard Ignition NS-633 Clutch Starter Safety Switch
| Brand | Standard Ignition NS-633 |
|---|---|
| Contents | 1 Switch |
| Terminal Gender | Male |
| Terminal Type | Blade |
| Fits | Mazda · 31 vehicles |
Clutch starter safety switch. Prevents starter engagement unless the clutch is depressed.
Blade terminals. Two male terminals for a secure electrical connection.
Cross-references Standard Ignition NS-633, VEMO V40-73-0065 and 1S17080 for the same application. See all 6.
Clutch Starter Safety Switch for Mazda Applications
Standard Ignition NS-633 is a clutch starter safety switch built for direct replacement use in Mazda vehicles that require a manual-transmission starter interlock. It uses a 2-terminal blade connection with male terminals for straightforward electrical integration. This part number is commonly searched for Mazda 5, Mazda MX-5 Miata, Mazda 6, and Mazda RX-8 clutch switch replacement needs.
Key Features
- Clutch starter safety switch for starter interlock operation
- Male terminal design with 2 blade terminals
- Direct-fit electrical replacement for listed Mazda applications
- Standard Ignition NS-633 part number for catalog matching
- Cross-reference available for OE-style lookup and interchange verification
Detailed Description
Standard Ignition NS-633 is an electrical switch used in the clutch-start circuit so the engine can crank only when the clutch pedal is in the proper position. It is a practical replacement for vehicles experiencing starter engagement issues tied to the clutch safety circuit. This part cross-references VEMO V40-73-0065 for the same application. Use NS-633 when searching for a clutch starter safety switch for 2007-2015 Mazda MX-5 Miata, 2007-2013 Mazda 6, 2009-2011 Mazda RX-8, and 2007-2015 Mazda 5 applications.
What It Helps Address
- No-crank condition when the clutch pedal is pressed
- Intermittent starter engagement from a worn clutch switch
- Faulty clutch interlock signal to the starting circuit
- Electrical connection problems at the switch terminals
- Replacement needs for Mazda clutch starter safety switch service
Installation Notes and Tips
Verify terminal style, connector fit, and mounting location before installation. Confirm the vehicle uses the clutch starter safety switch in the starting circuit and compare the original part number to NS-633 when diagnosing a no-start complaint. For Mazda 5, Mazda MX-5 Miata, Mazda 6, and Mazda RX-8 service, inspect the surrounding connector and wiring for heat damage or corrosion before final assembly.
Quality Assurance
Standard Ignition is a recognized aftermarket brand for electrical and switch components. NS-633 is cataloged with OE-style interchange references to support part matching during replacement selection.
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2015 | Mazda | 5 | — | — | N/A | — |
| 2015 | Mazda | MX-5 Miata | — | — | N/A | — |
| 2014 | Mazda | MX-5 Miata | — | — | N/A | — |
| 2013 | Mazda | 5 | — | — | N/A | — |
| 2013 | Mazda | 6 | 2.5L | L4 | N/A | — |
| 2013 | Mazda | 6 | 3.7L | V6 | N/A | — |
| 2013 | Mazda | MX-5 Miata | — | — | N/A | — |
| 2012 | Mazda | 5 | — | — | N/A | — |
| 2012 | Mazda | 6 | 2.5L | L4 | N/A | — |
| 2012 | Mazda | 6 | 3.7L | V6 | N/A | — |
| 2012 | Mazda | MX-5 Miata | — | — | N/A | — |
| 2011 | Mazda | 6 | 2.5L | L4 | N/A | — |
| 2011 | Mazda | 6 | 3.7L | V6 | N/A | — |
| 2011 | Mazda | MX-5 Miata | — | — | N/A | — |
| 2011 | Mazda | RX-8 | — | — | N/A | — |
| 2010 | Mazda | 5 | — | — | N/A | — |
| 2010 | Mazda | 6 | 2.5L | L4 | N/A | — |
| 2010 | Mazda | 6 | 3.7L | V6 | N/A | — |
| 2010 | Mazda | MX-5 Miata | — | — | N/A | — |
| 2010 | Mazda | RX-8 | — | — | N/A | — |
| 2009 | Mazda | 5 | — | — | N/A | — |
| 2009 | Mazda | 6 | — | — | N/A | — |
| 2009 | Mazda | MX-5 Miata | — | — | N/A | — |
| 2009 | Mazda | RX-8 | — | — | N/A | — |
| 2008 | Mazda | 5 | — | — | N/A | — |
| 2008 | Mazda | 6 | 2.3L | L4 | N/A | — |
| 2008 | Mazda | 6 | 3.0L | V6 | N/A | — |
| 2008 | Mazda | MX-5 Miata | — | — | N/A | — |
| 2007 | Mazda | 5 | — | — | N/A | — |
| 2007 | Mazda | 6 | — | — | N/A | — |
| 2007 | Mazda | MX-5 Miata | — | — | N/A | — |
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