If your search for a fuel pump relay Miata replacement brought you here, meet the part that switches power to the engine's control circuits: the Standard Ignition RY-667 Computer Control Relay, also listed as a fuel injection relay, ignition relay and main relay. It is a direct-fit replacement for the 1996-1997 Mazda Miata, 1997-2003 Mazda Protege, 1999-2005 Mazda Miata and 2002-2003 Mazda Protege5. Owners shopping for a Miata main relay will find it listed for both the 1996-1997 and 1999-2005 model years. See the "Vehicles it fits" section for engine details.
A relay lets a small control signal switch a higher-current circuit. As its listed names suggest, this one is used to switch power in the engine-computer, fuel-injection and ignition circuits. Signs it may need replacing include an engine that cranks but won't start, intermittent stalling, or a loss of power to the circuits it feeds. These symptoms can have other causes, so diagnose the circuit first. If the relay is at fault, the RY-667 replaces it.
- Composite housing: A high-quality composite housing is designed to protect the relay against harsh temperatures and demanding under-hood conditions.
- Certified manufacturing: Built at TS16949 and ISO9001 certified facilities.
- OE ignition expertise: Standard is a global manufacturer of original equipment ignition products. It maintains quality control throughout manufacturing, from componentry to the finished product.
Interchange: R6172 · 20213 · AR6172 · B5B418811
This part cross-references / interchanges with the following part numbers:
R6172, 20213, AR6172, B5B418811, RY-667
Frequently Asked Questions
What vehicles does the Standard RY-667 fit?
It is listed for the 1996-1997 and 1999-2005 Mazda Miata, the 1997-2003 Mazda Protege and the 2002-2003 Mazda Protege5. See the "Vehicles it fits" section for engine details.
What does a computer control relay do?
It uses a low-current control signal to switch power to a higher-current circuit. As its listed names suggest, this one serves the engine-computer, fuel-injection and ignition circuits.
What are signs this relay may need replacing?
Possible signs include a crank-but-no-start, intermittent stalling, or a loss of power to the circuits it feeds. Other parts can cause the same symptoms, so diagnose the circuit before replacing.
Which part numbers does the RY-667 interchange with?
It cross-references R6172, 20213, AR6172 and B5B418811.
What is the relay housing made of?
Standard uses a high-quality composite housing, designed to protect the relay against harsh temperatures and demanding under-hood conditions.
