HomeAir and Fuel Delivery > Fuel Injection System and Related ComponentsDelphi FP10446 Fuel Injection Pressure Regulator
Part #: FP10446

Delphi FP10446 Fuel Injection Pressure Regulator

⚙️ 3 vehicles fit this part
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Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Mitsubishi, Galant and Sigma
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Reliable Fuel Injection Pressure Regulator for Mitsubishi Vehicles

The Delphi FP10446 fuel injection pressure regulator is designed to maintain consistent fuel pressure in your Mitsubishi Galant or Sigma. Crafted from durable metal, this component ensures precise fuel delivery for optimal engine performance.

  • Constructed from high-quality metal for durability
  • Compatible with Mitsubishi Galant and Sigma models
  • Non-adjustable design for consistent pressure regulation
  • Push-in inlet type with a 0.43 inch (11.0 mm) diameter
  • Hose outlet type with a 0.31 inch (8.0 mm) diameter
  • Single inlet and outlet ports for streamlined fuel flow
  • Bolt mounting type for secure installation
  • System pressure rating of 51 psi

Product Details and Specifications

The Delphi FP10446 fuel injection pressure regulator is engineered to provide stable fuel pressure within the fuel injection system of select Mitsubishi vehicles. Its metal construction offers resistance to wear and corrosion, contributing to long service life. The regulator features a push-in inlet port measuring 0.43 inches (11.0 mm) in diameter and a hose outlet port of 0.31 inches (8.0 mm), facilitating proper fuel flow. Designed with one inlet and one outlet port, it simplifies the fuel delivery path. The bolt mounting type ensures a secure and reliable fitment in the fuel system. This regulator is non-adjustable, maintaining a fixed system pressure of 51 psi to support consistent engine operation.

Applications and Problem Resolution

  • Maintains consistent fuel pressure for efficient engine performance
  • Prevents fuel pressure fluctuations that can cause rough idling or stalling
  • Helps avoid fuel leaks by providing a secure connection with push-in and hose ports
  • Supports proper fuel delivery to prevent engine hesitation or power loss
  • Replaces worn or faulty pressure regulators in Mitsubishi Galant and Sigma models

Installation Notes and Tips

When installing the Delphi FP10446 fuel injection pressure regulator, ensure the bolt mounting points align correctly with the vehicle’s fuel system bracket. Verify that the push-in inlet and hose outlet connections are secure to prevent leaks. Since this regulator is non-adjustable, no pressure tuning is required after installation. It is recommended to inspect related fuel system components during replacement to maintain overall system integrity.

Quality Assurance and Warranty

Delphi manufactures the FP10446 fuel injection pressure regulator to meet OEM standards for fit, form, and function. The metal construction and precise engineering contribute to reliable performance in Mitsubishi Galant and Sigma vehicles. While specific warranty details are not provided, Delphi parts typically adhere to industry quality standards to ensure durability and consistent operation.

BrandDelphi
Part NumberFP10446
MaterialMetal
Outlet Port Diameter0.31
Outlet Port Diameter8.0
AdjustableNo
Inlet Port Diameter0.43
Inlet Port Diameter11.0
Inlet TypePush in
Outlet TypeHose
Inlet Quantity1
Outlet Quantity1
Mounting TypeBolt
Gauge PortNo
MaterialMetal
System Pressure51

This part fits 3 vehicles. Search below:

YearMakeModelPositionNotes
1990MitsubishiSigmaN/A
1989MitsubishiSigmaN/A
1988MitsubishiGalantN/A

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

230025G1275MD120817PR4011

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.