Delphi FP10433 Fuel Injection Pressure Regulator

Fuel Pressure Control for Mitsubishi Applications

The Delphi FP10433 fuel injection pressure regulator is built for precise fuel system control in select Mitsubishi vehicles. It uses a metal body, a push-in inlet, and a hose outlet to support stable fuel pressure in the injection system.

Compatible With 1992-1995 Mitsubishi Expo, 1992-1994 Mitsubishi Expo LRV, and 1994 Mitsubishi Galant, this regulator is a direct-fit service part for the listed applications. Delphi’s OE background is reflected in the design and material selection used in this replacement component.

Key Features

• Delphi FP10433 fuel injection pressure regulator
• Metal construction for fuel system durability
• Push-in inlet and hose-style outlet
• One inlet port and one outlet port
• Bolt-mounted design
• Fixed 51 system pressure specification
• No gauge port and non-adjustable design

Detailed Product Overview

The FP10433 is engineered for fuel injection systems that require a regulated 51 psi pressure setting. Its inlet and outlet dimensions are specified for the listed Mitsubishi fuel system layouts, with a 16.0 mm push-in inlet and a 9.0 mm hose outlet. Delphi draws on OE heritage and supplier experience to produce aftermarket parts that follow the original application requirements closely.

This part cross-references Dorman OE Solutions 800-298 for the same application. The Delphi FP10433 is a practical replacement choice when servicing a Mitsubishi Expo, Mitsubishi Expo LRV, or Mitsubishi Galant fuel delivery system.

Common Issues This Part May Address

• Fuel pressure that is outside the specified range
• Hard starting caused by unstable fuel delivery
• Rich or lean running from incorrect regulator output
• Fuel pressure fluctuation during acceleration or idle
• Fuel system drivability concerns on listed Mitsubishi models

Installation Notes and Tips

Verify the inlet and outlet style, port diameters, and mounting location before installation. Confirm the vehicle application against the listed fitment: 1992-1995 Mitsubishi Expo, 1992-1994 Mitsubishi Expo LRV, and 1994 Mitsubishi Galant, excluding models with Electronic Controlled Power Steering where noted. Inspect fuel lines, seals, and surrounding components for wear before reassembly.

Quality Assurance

Delphi builds this regulator using OE experience gained from supplying major automakers, with aftermarket engineering informed by original equipment knowledge. The FP10433 is made to meet the listed fuel pressure and fitment requirements for the specified Mitsubishi applications.