HomeAir and Fuel Delivery > Fuel Injection System and Related ComponentsDelphi FP10573 Fuel Injection Pressure Regulator
Part #: FP10573

Delphi FP10573 Fuel Injection Pressure Regulator

⚙️ 4 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: Dodge and Plymouth, Spirit and Acclaim
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Delphi Fuel Injection Pressure Regulator Overview

The Delphi FP10573 fuel injection pressure regulator is designed to maintain consistent fuel pressure in the fuel injection system of select Dodge and Plymouth vehicles. Engineered with durable metal construction, this regulator ensures reliable performance for Dodge Acclaim and Plymouth Spirit models.

  • Durable metal material for long-lasting use
  • Inlet port diameter: 0.63 inches (16.0 mm) with push-in type connection
  • Outlet port diameter: 0.50 inches (12.7 mm) with threaded outlet
  • Single inlet and outlet ports for streamlined fuel flow
  • Bolt mounting type for secure installation
  • System pressure rating of 48 psi
  • Non-adjustable design for consistent factory-set pressure

Technical Details and Specifications

The FP10573 fuel injection pressure regulator features a metal body constructed to withstand the demands of fuel system operation. It includes a push-in inlet port measuring 0.63 inches (16.0 mm) in diameter and a threaded outlet port sized at 0.50 inches (12.7 mm). The regulator is designed with one inlet and one outlet port, facilitating straightforward integration into the fuel injection system. Its bolt mounting type ensures a secure and stable fitment within the engine bay. The system pressure is set at 48 psi, matching the requirements for proper fuel delivery in compatible vehicles. This part is non-adjustable, maintaining consistent fuel pressure without the need for manual tuning.

Compatible Vehicles and Applications

This Delphi fuel injection pressure regulator is compatible with Dodge Acclaim and Plymouth Spirit models. It is specifically engineered to meet the fuel system requirements of these vehicles, ensuring proper fuel pressure regulation and engine performance. The part number FP10573 corresponds directly to this application, providing a reliable replacement option for maintaining fuel system integrity.

Common Issues Addressed by the FP10573 Regulator

  • Fuel pressure fluctuations causing engine performance issues
  • Hard starting or stalling due to inconsistent fuel delivery
  • Fuel leaks or pressure loss from worn or damaged regulators
  • Poor fuel economy related to improper fuel pressure
  • Engine hesitation or misfires linked to fuel system irregularities

Installation Notes and Tips

Installation of the Delphi FP10573 fuel injection pressure regulator requires basic mechanical skills and appropriate tools. Ensure the engine is cool and the fuel system is depressurized before removal. The bolt mounting type allows for secure attachment; verify that inlet and outlet ports are properly connected—push-in for the inlet and threaded for the outlet. Inspect all seals and fittings for leaks after installation. It is recommended to replace any worn fuel lines or connectors during the process to maintain system integrity.

Quality Assurance and Warranty

Delphi manufactures the FP10573 fuel injection pressure regulator to meet OEM standards for durability and performance. Constructed from metal materials, this part is built to withstand typical operating conditions in Dodge Acclaim and Plymouth Spirit vehicles. While specific warranty details may vary, Delphi parts generally come with a limited warranty covering defects in materials and workmanship. Consult product documentation or authorized sources for exact warranty terms.

BrandDelphi
Part NumberFP10573
AdjustableNo
Gauge PortNo
Inlet Port Diameter0.63
Inlet Port Diameter16.0
Inlet Quantity1
Inlet TypePush In
MaterialMetal
MaterialMetal
Mounting TypeBolt
Outlet Port Diameter0.50
Outlet Port Diameter12.7
Outlet Quantity1
Outlet TypeThreaded
System Pressure48

This part fits 4 vehicles. Search below:

YearMakeModelPositionNotes
1994DodgeSpiritN/A
1994PlymouthAcclaimN/A
1993DodgeSpiritN/A
1993PlymouthAcclaimN/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:

228654669 3085G1104800-317PR205PR310

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