Delphi FP10425 fuel injection pressure regulator for the 1990-1993 Mazda Miata 4-cylinder 1.6L holds fuel pressure steady in the injection system. Internal valves, diaphragms and springs work together to keep that pressure consistent.
- Nitrile™ diaphragms resist high-ethanol fuels
- Precisely manufactured internal valves, diaphragms and springs for performance under all engine operating conditions
- Quiet operation with no audible regulator noise
- Diaphragm materials for longer life, improved durability and compatibility with a wide range of fuels
- Consistent, predictable fuel pressure throughout the system's range of control
Quick facts
- Part: Delphi FP10425 fuel injection pressure regulator
- Fits: 1990-1993 Mazda Miata 4-cylinder 1.6L
- Condition: New
Hard starting, rough running or a fuel smell near the engine can come from a worn regulator, though a problem with the pump, filter or injectors may show up the same way. Before buying, look over the regulator and its fittings for fuel seepage or cracked rubber with the engine off and cool. A shop can test the pressure itself.
Fits
This regulator is a direct-fit replacement for the 1990-1993 Mazda Miata 4-cylinder 1.6L.
Specifications
- Quantity per vehicle: 1
- Diaphragm: Nitrile™
- Condition: New
In the box
One fuel injection pressure regulator. The 1990-1993 Mazda Miata 4-cylinder 1.6L takes one.
Interchange: 158-0267 · B61P-13-280 · 800-191
5G1239 · 21887 · PR79 · PR474
This part cross-references / interchanges with the following part numbers:
5G1239, 21887, 158-0267, B61P-13-280, 800-191, PR79, PR474
Frequently Asked Questions
Is the Delphi FP10425 the right fuel injection pressure regulator for the 1990-1993 Mazda Miata 4-cylinder 1.6L?
Yes. Delphi FP10425 is listed for the 1990-1993 Mazda Miata 4-cylinder 1.6L, and that car takes one.
Does this Delphi fuel injection pressure regulator handle high-ethanol fuel?
Yes. Its Nitrile™ diaphragms resist high-ethanol fuels, and the diaphragm materials are also made to work with a wide range of fuels.
Is the Delphi FP10425 noisy when it works?
No. Delphi FP10425 is built for quiet operation, with no audible regulator noise.
Can I pressure-test this regulator at home?
No. Testing fuel pressure needs the engine running and the fuel system opened, so leave it to a shop.
Is 158-0267 an interchange number for the Delphi FP10425?
Yes. 158-0267 is listed with Delphi FP10425 on the Interchange line, along with B61P-13-280 and 800-191.
