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| Feature | Specification |
| Primary Part Number | MOTORCRAFT SW946 |
| OEM Part Number | D0UZ-15520-A (Ford/Motorcraft) |
| Function | Backup Lamp Switch (Closes circuit to activate reverse lights when transmission is in Reverse) |
| Voltage | 12 Volts |
| Component | Switch and Mounting Bracket (Integrated Assembly) |
| Transmission Type | Manual Transmission (M/T) (Typical mounting location for a mechanical switch) |
| Construction | Metal Switch Body and Metal Mounting Bracket |
| Typical Use | Original Equipment (OE) component mounted near the transmission linkage, usually on the firewall or floorpan. |
| Vehicle/Truck | Years | Transmission Type | Notes |
| Ford Econoline Van | 1969 - 1974 | Manual Transmission (M/T) | Used in E-100, E-200, E-300 series vans. |
| Ford E-Series Van | 1970 - 1971 | Manual Transmission (M/T) | Confirmed OE fitment for these specific years. |
