Delphi FP10376 Fuel Injection Pressure Regulator

Fuel Pressure Control for Hyundai and Kia Applications

The Delphi FP10376 fuel injection pressure regulator is built for returnless fuel systems that require stable fuel delivery and precise pressure control. It is a metal, clamp-mounted regulator with a push-in inlet and a single outlet, making it a direct-fit service part for select Hyundai Sonata, Hyundai Santa Fe, and Kia Optima applications.

• Fuel injection pressure regulator for returnless fuel systems
• Metal construction for durable underhood service
• Push-in inlet with clamp mounting
• Single inlet and single outlet layout
• No gauge port and non-adjustable design
• Compatible with select 2001-2006 Hyundai and Kia models

OE-Style Design and Fitment

Delphi FP10376 is engineered with OE heritage and aftermarket service knowledge drawn from more than a century of original equipment experience. That background is reflected in the regulator’s straightforward design and application-specific fitment for returnless fuel delivery systems. This part cross-references Beck/Arnley 158-0746 and Standard Ignition PR391 for the same application. Compatible With 2001-2004 Kia Optima, 2005-2006 Kia Optima, 2001-2003 Hyundai Santa Fe, 2004 Hyundai Santa Fe, 2002-2003 Hyundai Sonata, 2004 Hyundai Sonata, and 2005 Hyundai Sonata.

Common Symptoms This Part May Address

• Fuel pressure that is too high or too low
• Hard starting or extended crank time
• Rough idle caused by unstable fuel delivery
• Engine hesitation during acceleration
• Fuel system performance issues on returnless setups

Installation Notes

Verify the inlet diameter, mounting style, and returnless fuel system configuration before installation. This regulator uses a push-in inlet, clamp mounting, and no gauge port, so matching the original layout is important for proper fitment. Confirm the vehicle-specific application details, including the noted 35.5 mm or 37.5 mm sizing where applicable, before replacing the original unit.

Quality Assurance

Delphi builds aftermarket parts using OE experience and supplier knowledge developed through work with major automakers. The FP10376 reflects that OE-focused approach for service replacement on select Hyundai and Kia fuel systems.