Keep fuel delivery steady and your engine running the way it should with the Standard Ignition Fuel Injection Pressure Regulator PR543. It installs as a direct-fit replacement for the 2011 Kia Optima, 2012-2014 Hyundai Accent, 2012-2013 Hyundai Azera, 2012-2015 Hyundai Veloster, 2012-2014 Kia Rio, 2012-2019 Kia Soul, 2014 Kia Forte Koup and 2014-2015 Kia Optima.
- Regulates fuel pressure: maintains the pressure the injection system needs by controlling how much fuel returns from the rail.
- Supports consistent fuel delivery: helps keep injector supply pressure within the target range for proper fuel metering.
- Direct-fit replacement: made to replace the pressure regulator on the listed applications.
The fuel pressure regulator manages the pressure supplied to the fuel injectors, bleeding off excess fuel so the rail stays within its target range. Signs the regulator may need replacing include rough idle, hard starting, poor fuel economy or a fuel odor. Diagnose the cause first; if a failed pressure regulator is behind the symptom, PR543 replaces it.
Interchange: 24251 · 2-199111 · 2199111 · 313803M500 · 313803S900 · 3803M500 · 3803S900 · 800-655 · 800655
Manufacturer part number PR543.
This part cross-references / interchanges with the following part numbers:
Frequently Asked Questions
What does this fuel pressure regulator do?
It manages the pressure supplied to the fuel injectors, returning excess fuel from the rail so pressure stays within the target range for proper injection.
Will PR543 fit my vehicle?
It is a direct-fit replacement for applications such as the 2011 Kia Optima, 2012-2014 Hyundai Accent and 2012-2019 Kia Soul. See the Buyer's Guide tab to confirm your vehicle.
What are the signs a fuel pressure regulator may need replacing?
Common signs include rough idle, hard starting, poor fuel economy or a fuel odor. These can have other causes, so diagnose before replacing.
What numbers does this part interchange with?
It interchanges with 24251, 2-199111, 313803M500, 313803S900, 3803M500, 3803S900 and 800-655. Its own manufacturer part number is PR543.
Should I diagnose before installing this regulator?
Yes. The listed symptoms can stem from other components, so confirm the regulator is the cause first; if it is, PR543 replaces it.
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