Standard Ignition PR543 fuel injection pressure regulator for the 2014-2015 Kia Optima 4-cylinder 2.4L and other vehicles controls the fuel pressure that reaches the engine. It is a new, returnless-type regulator with a single inlet and a single outlet.
- Holds fuel delivery consistent and precise, which supports acceleration and throttle response
- Leak-proof seals and thermal resistance for use in varied driving conditions
- Tested for 200+ hours of vibration and 1000+ hours of extreme heat and cold operation, plus on-vehicle testing
- Steel construction that resists corrosion and wear and is not easy to deform
Quick facts
- Part: Standard Ignition PR543 fuel injection pressure regulator
- Fits: 2014-2015 Kia Optima 4-cylinder 2.4L and other vehicles
- Material: Steel
- Condition: New
A regulator that is failing can show up as hard starting, a rough idle or uneven fuel delivery. Those signs alone do not prove the regulator is the problem, since a clogged fuel filter can cause them too.
Fits
This regulator is listed for a wide range of Kia and Hyundai models, including the 2012-2019 Kia Soul 4-cylinder 1.6L and the 2014-2019 Soul 4-cylinder 2.0L, and the 2012-2015 Hyundai Veloster 4-cylinder 1.6L. The 2012-2015 Hyundai Veloster 4-cylinder 1.6L takes one.
Specifications
Fit and size
- Quantity per vehicle: 1
- Mounting type: Direct
- Inlet quantity: 1
- Number of outlets: 1
- Port quantity: 1
Build and materials
- Type: Returnless
- System type: Gas
- Adjustable: Yes
- Material: Steel
- Condition: New
- Country of origin: Brazil
In the box
One fuel injection pressure regulator. A reference port is not included.
Interchange: 2-199111 · 800-655
24251 · 313803M500 · 313803S900 · 3803M500 · 3803S900
This part cross-references / interchanges with the following part numbers:
24251, 2-199111, 313803M500, 313803S900, 3803M500, 3803S900, 800-655, PR543
Frequently Asked Questions
Does the Standard Ignition PR543 fuel injection pressure regulator fit the 2014-2015 Kia Optima 4-cylinder 2.4L?
Yes, Standard Ignition PR543 is listed for the 2014-2015 Kia Optima 4-cylinder 2.4L. If your car is a different one, look it up in the "Vehicles it fits" section on this page.
Does the PR543 fuel injection pressure regulator come with a reference port?
No. A reference port is not included; the listing is one fuel injection pressure regulator.
Is the Standard Ignition PR543 a returnless regulator, and can it be adjusted?
Yes, Standard Ignition PR543 is a returnless-type regulator with one inlet and one outlet, and it is listed as adjustable. It is made of steel.
What symptoms can a failing fuel injection pressure regulator cause?
Hard starting, a rough idle or uneven fuel delivery can be signs of a fuel pressure problem. A shop can test fuel pressure safely.
How was the PR543 fuel injection pressure regulator tested?
Its engineering validation includes 200+ hours of vibration testing, 1000+ hours of extreme heat and cold operational testing, and on-vehicle testing.
