Standard Ignition PR79 fuel injection pressure regulator for the 1990-1993 Mazda Miata 4-cylinder 1.6L regulates the fuel pressure in the fuel injection system. The Standard Ignition fuel injection pressure regulator is designed for consistent, precise fuel delivery to support acceleration and throttle response.
- Leak-proof seals and thermal resistance for varied driving conditions
- 200+ hours of vibration testing during engineering validation
- 1000+ hours of extreme heat and cold operational testing, plus on-vehicle testing
- Steel construction that resists corrosion, wear and deformation
Quick facts
- Part: Standard Ignition PR79 fuel injection pressure regulator
- Fits: the 1990-1993 Mazda Miata 4-cylinder 1.6L
- Material: Steel
- Condition: New
Hard starting, a rough idle or poor fuel economy can mean the regulator is worn, though a weak fuel pump or a clogged fuel filter can also be behind them, so confirm which one before replacing it.
Fits
This regulator is a direct-fit replacement for the 1990-1993 Mazda Miata 4-cylinder 1.6L, which takes one, and it is tuned to Mazda's engine requirements. This listing is one regulator.
Specifications
Fit and size
- Quantity per vehicle: 1
- Mounting type: Flange
- Port quantity: 2
- Nipple orientation: Angled
Build and materials
- Function: Regulator
- System type: Gas
- Material: Steel
- Finish: Silver
- Condition: New
- Country of origin: Mexico
In the box
One fuel injection pressure regulator with an O-ring and a caution sheet.
Interchange: 2-19536 · 800-191
21887 · PRDL191 · B61P13280
This part cross-references / interchanges with the following part numbers:
21887, PRDL191, 2-19536, B61P13280, 800-191, PR79
Frequently Asked Questions
Does the Standard Ignition PR79 fit a 1990-1993 Mazda Miata 4-cylinder 1.6L?
Yes. Standard Ignition PR79 is a fuel injection pressure regulator for the 1990-1993 Mazda Miata 4-cylinder 1.6L, and that engine takes one.
Does the Standard Ignition PR79 come with an O-ring?
Yes. Standard Ignition PR79 comes with an O-ring and a caution sheet.
What mounting style does this fuel injection pressure regulator use?
This regulator uses a flange mount. It has two ports and an angled nipple, in steel construction with a silver finish.
Can a worn PR79 fuel injection pressure regulator cause hard starting?
Yes, a worn regulator can be behind hard starting, and a rough idle or poor fuel economy are other possible signs. A shop can test fuel pressure to find the cause.
Does the Standard Ignition PR79 replace part number 2-19536?
Yes. 2-19536 is one of the numbers the Standard Ignition PR79 regulator replaces.
