Delphi FP10558 Fuel Injection Pressure Regulator

Delphi FP10558 Fuel Pressure Regulator

The Delphi FP10558 fuel injection pressure regulator is built for precise fuel system control in compatible Kia Rio applications. It uses a metal body, push-in inlet and outlet connections, and clamp mounting for a direct-fit service replacement on 2001-2005 Kia Rio models.

Key Features

• Fuel injection pressure regulator for air and fuel delivery systems
• Metal construction for durable fuel system service
• Push-in inlet and outlet ports for straightforward hose connection
• Clamp-mounted design
• Fixed-pressure design with 48 system pressure
• No gauge port and non-adjustable configuration
• Fits 2001-2005 Kia Rio

Detailed Description

Delphi FP10558 is a fuel injection pressure regulator designed to maintain consistent fuel pressure in the fuel delivery system. It features one inlet and one outlet with 10.0 mm inlet port diameter and 11.0 mm outlet port diameter, both using push-in connections. The metal housing and clamp mounting support secure installation in the fuel system, while the non-adjustable design keeps operation focused on factory-style pressure control. Delphi draws on OE heritage and supplier experience from its work with major automakers, and that background is reflected in the engineering of this replacement part. This part cross-references Gates 24047 for the same application.

What It Helps Address

• Fuel pressure that is too high or too low
• Hard starting caused by unstable fuel delivery
• Rough idle related to pressure regulation issues
• Fuel trim problems tied to inconsistent injector supply
• Driveability concerns in 2001-2005 Kia Rio fuel systems

Installation Notes and Tips

Verify inlet and outlet port size, push-in connection style, and clamp mounting before installation. Confirm the replacement regulator matches the vehicle’s fuel system pressure specification and inspect hoses, clamps, and sealing surfaces for wear before reassembly. For 2001-2005 Kia Rio service, compare the original regulator layout to the Delphi FP10558 before removal to ensure proper routing and fit.

Quality Assurance

Delphi builds aftermarket parts using OE-focused engineering knowledge developed through long-term supplier experience with top automakers. That OE background supports consistent fit and function for fuel system service on compatible Kia Rio applications.