Hold fuel pressure steady across your engine's operating range with the Delphi Fuel Injection Pressure Regulator FP10548. It drops in as a direct-fit replacement for the 2006-2010 Hyundai Sonata (V6-3.3L) and the 2006-2010 Kia Optima (V6-2.7L), controlling the fuel pressure delivered to the injectors so the system stays within its designed range. Delphi engineers these regulators using OE engineering practices, with Nitrile diaphragms chosen for compatibility with a wide range of fuels, including high-ethanol blends.
- Precision internals: precisely manufactured internal valves, diaphragm, and spring for consistent performance under varying engine operating conditions.
- Quiet operation: designed for quiet operation with no audible regulator noise.
- Durable diaphragm: robust diaphragm material intended for longer life and compatibility with many fuel types.
- Stable pressure: delivers consistent, predictable fuel pressure through the system's range of control for smooth drivability.
This is a non-adjustable, standard-replacement regulator with a clamp mounting type, one push-in inlet, one hose outlet, no gauge port, and a 50 psi pressure rating. Mounting hardware is not included. Country of origin: Brazil. If a failed pressure regulator is the cause of your hard starting, rough running, or fuel-trim trouble, this replaces it.
Interchange: 5G1500 · 24098 · 158-0747 · 1580747 · 31380-3K100 · 313803K100 · 800-502 · 800502 · PR390 · PR4271. Manufacturer part number FP10548.
This part cross-references / interchanges with the following part numbers:
Frequently Asked Questions
What does this fuel injection pressure regulator do?
It controls the fuel pressure delivered to the injectors, holding it within the system's designed range for consistent, predictable drivability.
Which vehicles does the FP10548 fit?
It is a direct-fit replacement for the 2006-2010 Hyundai Sonata (V6-3.3L) and the 2006-2010 Kia Optima (V6-2.7L). Check the Buyer's Guide tab to confirm your vehicle.
Is this regulator adjustable?
No. It is a non-adjustable, standard-replacement regulator with a 50 psi pressure rating.
Is mounting hardware included?
No, mounting hardware is not included. Consult the vehicle service information for the correct fasteners and whether they may be reused.
What are the inlet and outlet connections?
It has one push-in inlet and one hose-type outlet, with a clamp mounting type and no gauge port.
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