A failed neutral safety switch leaves your 1979-1986 Mustang unable to crank in park or neutral, and often kills reverse lamp functionality in the process. All Classic Parts replaces that failed unit with a direct-fit switch built to the original electrical specification, restoring both starting safety and backup lamp function in one swap.
Restored shifter functionality. When the factory switch breaks or malfunctions, the starter circuit loses its ground reference and the engine simply will not crank. This replacement reestablishes that circuit so the car starts normally from park or neutral and ignores the key in any other gear position.
Correct connector and circuitry for backup lamps. The four-wire blade connector matches the factory harness plug exactly, no splicing or adapter required. The internal circuitry also routes current to the reverse lamps the moment the shifter selects reverse, so both the safety function and the lighting function come back together.
Product Benefits
- Direct Replacement: Matches OEM part number E2DZ-7A247-A for a confirmed fit on 1979-1986 Mustang applications.
- Four-Wire Blade Connector: Plugs directly into the factory harness with no splicing or modification.
- Starter Circuit Restoration: Allows cranking only in park or neutral, just like the original switch.
- Backup Lamp Activation: Signals reverse lamps automatically when reverse gear is selected.
- Malfunctioning Switch Fix: Resolves no-crank conditions caused by a failed or intermittent NSS.
About All Classic Parts (ACP): All Classic Parts specializes in restoration and replacement components for classic Ford vehicles, producing parts that match original specifications so owners can return their cars to correct, reliable operation without chasing obsolete factory hardware.
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Product Specifications & Vehicle Fitment
Review the product details and confirm compatibility with your vehicle before ordering.
| Specification | Details |
|---|---|
| Vehicle Fitment | 1979, 1980, 1981, 1982, 1983, 1984, 1985, 1986 |
