Dorman 502-555 Diesel Fuel Injector Pump

Brand Dorman 502-555
Terminal Type Pin
Mounting Hardware Included No
Wire Quantity 0
Connector Quantity 1
Gasket Or Seal Included No
Terminal Quantity 1
Connector Gender Female
Terminal Gender Male
Wiring Harness Included No
Port Quantity 6
Pump Type Mechanical
Package Contents 1 pump
Fits Dodge · 6 vehicles

Thoroughly remanufactured. Critical components are replaced and clearances are verified after testing.

Mechanical pump. Built for fuel injection system performance with a pin terminal and female connector.

One pump, with no mounting hardware, gasket, or wiring harness included.

Cross-references GB 739-301, Standard Ignition IP20 and 3937167 for the same application. See all 6.

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Dorman 502-555 Diesel Fuel Injector Pump

This remanufactured diesel fuel injector pump is built for direct replacement service on select Dodge Ram heavy-duty trucks. It is engineered for mechanical fuel delivery and restored through a controlled remanufacturing process that replaces critical wear components and verifies clearances after cleaning, reassembly, and testing.

Compatible with 1998-2000 Dodge Ram 2500 and 1998-2000 Dodge Ram 3500 applications, Dorman 502-555 supports diesel fuel system repair where consistent injection pump performance is required.

Key Features

  • Remanufactured diesel fuel injection pump for mechanical fuel systems
  • Critical components replaced during the remanufacturing process
  • Clearances verified after cleaning, reassembly, and testing
  • Female connector with 1 connector, 1 terminal, and pin terminal type
  • 6-port pump configuration
  • Direct-fit replacement for select Dodge Ram 2500 and Ram 3500 diesel applications

Detailed Description

Dorman 502-555 is a mechanical diesel fuel injector pump designed for service replacement on 1998-2000 Dodge Ram 2500 and 1998-2000 Dodge Ram 3500 trucks. The pump is remanufactured using a controlled process that addresses key internal wear points, then checked for proper clearances and function before release. This helps restore fuel delivery performance in diesel injection systems that rely on precise pump operation.

This part cross-references Standard Ignition IP20 for the same application.

What It Helps Fix

  • Hard starting caused by weak or inconsistent diesel fuel delivery
  • Loss of engine power related to injection pump wear
  • Rough idle from unstable fuel pressure or timing issues
  • Fuel system performance problems in high-mileage Dodge Ram diesel trucks
  • Driveability concerns tied to mechanical pump degradation

Installation Notes and Tips

  • Verify vehicle application by year, make, and model before installation.
  • Inspect related fuel system components, lines, and seals during service.
  • Mounting hardware, gasket, seal, and wiring harness are not included.
  • Follow factory service procedures for priming, timing, and final checks after installation.

Quality Assurance

Dorman remanufactures this pump with replaced critical components and post-assembly clearance verification to support reliable operation. The part number is 502-555.

This part fits 6 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersPositionNotes
2000DodgeRam 25005.9LL6N/A
2000DodgeRam 35005.9LL6N/A
1999DodgeRam 25005.9LL6N/A
1999DodgeRam 35005.9LL6N/A
1998DodgeRam 25005.9LL6N/A
1998DodgeRam 35005.9LL6N/A
Directly replaces or cross-references 6 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
GB — 739-301Standard Ignition — IP2039371675013925AADP030017R5013925AA