Standard Ignition PR188 Fuel Injection Pressure Regulator

Fuel Pressure Control for Dodge Applications

The Standard Ignition PR188 fuel injection pressure regulator is built for precise fuel delivery and stable engine performance. It is application-specific for proper fit and form, with a direct-mount design and a return-style configuration for gas-powered systems.

Fits 1988-1992 Dodge B250, N/A; Fits 1988-1992 Dodge B350, N/A; Fits 1988-1992 Dodge D250, N/A; Fits 1988-1992 Dodge D350, N/A; Fits 1988-1992 Dodge Ramcharger, N/A; Fits 1988-1992 Dodge W250, N/A; Fits 1988-1992 Dodge W350, N/A; Fits 1988-1991 Dodge B150, N/A; Fits 1988-1991 Dodge D150, N/A; Fits 1988-1991 Dodge Dakota, N/A; Fits 1988-1991 Dodge W150, N/A; Fits 1988-1989 Dodge D100, N/A; Fits 1988-1989 Dodge W100, N/A.

• Standard Ignition PR188 fuel injection pressure regulator
• Return-type regulator for gas fuel systems
• Direct mounting for OE-style installation
• 3 inlet ports and 3 ports total
• 14.5 psi operating pressure
• Cast iron body with steel regulator construction
• Straight nipple orientation
• Chrome part finish with yellow dichromium regulator finish
• Includes caution sheet

Detailed Product Overview

The PR188 is engineered to regulate fuel pressure at the specified operating level so the injection system can deliver fuel consistently. Its robust construction is designed to resist leakage, while the application-specific design supports correct fitment on listed Dodge B150, D150, Dakota, and related truck and utility applications. Standard Ignition controls the manufacturing process from components through finished product, supporting consistent part quality and dimensional accuracy.

This part cross-references Dorman OE Solutions 800-300 for the same application.

Common Symptoms This Part Can Address

• Fuel pressure that is too high or too low
• Hard starting after the engine sits
• Rough idle or inconsistent fuel delivery
• Fuel odor from a leaking regulator
• Poor throttle response caused by unstable pressure control

Installation Notes and Tips

Verify the fuel system layout, port count, and return-style configuration before installation. Confirm the regulator matches the listed Dodge application and inspect fuel lines, seals, and mounting surfaces for wear or contamination. Follow the included caution sheet and relieve fuel system pressure before service.

Quality Assurance

Standard Ignition manufactures this regulator with controlled production from components to finished assembly, helping maintain consistent fit and pressure regulation for the specified applications.