Keep the switched circuits energized on demand with the Standard Ignition Relay RY-743, a direct-fit replacement for the 1998-2002 Mazda 626, 2007 Mazda CX-7, and 2007 Mazda CX-9. This part is cataloged under several names — Fuel Injection Relay / Fuel Pump Relay / Ignition Relay / Main Relay — so it appears under each of those labels depending on the circuit it serves in your vehicle.
A relay is an electrically operated switch: a small control signal from the module or ignition switch closes the relay so it can pass the higher current the powered circuit needs. Depending on the application, this unit handles switching for the fuel injection, fuel pump, ignition, or main power circuit.
- Electrically operated switch: uses a low-current control input to make or break a higher-current load circuit.
- Direct-fit replacement: intended to restore the original switching function for the listed applications.
- Multi-role part: listed as a fuel injection, fuel pump, ignition, and main relay.
Signs the original relay may need replacing include a no-start, intermittent stalling, or loss of power to the circuit it feeds. If a failed relay is the cause, installing RY-743 replaces it.
Interchange: Manufacturer part number RY-743.
