HomeAir and Fuel Delivery > Wire, Cable and Related ComponentsDorman 904-548 Fuel Injection Harness
Part #: 904-548

Dorman 904-548 Fuel Injection Harness

3 vehicles fit this part
Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
Fitment: Ford, Excursion, F-250 Super Duty, and F-350 Super Duty
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Dorman 904-548 Fuel Injection Harness

This Dorman fuel injection harness is a direct replacement for the original equipment harness used on select 2003 Ford Excursion, F-250 Super Duty, and F-350 Super Duty applications. Built to match OE fit and function, Dorman 904-548 helps restore proper injector system operation with insulated electrical connectors that resist corrosion.

Key Features

  • Direct replacement fuel injector harness for OE-style fit and function
  • Designed for direct injection fuel systems
  • Black connector housing with female connector type
  • 10-wire harness with 16-gauge wire construction
  • Full insulated electrical connectors help reduce corrosion exposure
  • Compatible with 2003 Ford Excursion, 2003 Ford F-250 Super Duty, and 2003 Ford F-350 Super Duty

Detailed Description

Dorman 904-548 is a replacement fuel injection harness engineered for direct injection systems. It is built to match the original harness layout and electrical connection points so the injector circuit can operate as intended. For owners searching for a 2003 Ford Excursion fuel injector harness or a 2003 Ford F-250 Super Duty fuel injection harness, this part provides a direct-fit service replacement. It also fits the 2003 Ford F-350 Super Duty in the same application. This part cross-references Standard Ignition IFH2 for the same application.

What It Helps Fix

  • Intermittent injector signal loss caused by damaged wiring
  • Corrosion at exposed electrical connectors
  • Misfires related to injector harness faults
  • Hard starting caused by poor injector circuit continuity
  • Injector operation issues from worn or heat-damaged harness routing

Installation Notes and Tips

Verify connector style, wire routing, and engine application before installation. Inspect adjacent injector connectors and harness clips for heat damage, corrosion, or broken terminals before connecting the replacement harness. Confirm the vehicle is a 2003 Ford Excursion, F-250 Super Duty, or F-350 Super Duty with the matching direct injection setup before ordering Dorman 904-548.

Quality Assurance

Dorman manufactures this harness as a standard replacement part using quality materials and insulated connectors to support reliable electrical contact and corrosion resistance. The part is built to restore the fit and function of the original fuel injection harness.

BrandDorman
Part Number904-548
Length40
Wire Gauge Measurement16
Connector ColorBlack
Connector ColorNegro
Connector ColorNoir
Wire Quantity10
Connector Quantity7
Connector GenderMacho
Connector GenderMale
Contenidos del paquete1 arnés de cableado de la inyección de combustible
Escudo de calorNo
Estilo de inyección de combustibleInyección directa
Estilo de medición de inyección de combustibleInyección directa
Fuel Injection Metering StyleDirect injection
Fuel Injection StyleDirect injection
Grado del artículoReemplazo estándar
Heat ShieldNo
Heat ShieldNon
Item GradeStandard
Number Of Fuel Injectors Controlled8
Package Contents1 fuel injection harness
Plug/Connector TypeConector hembra
Plug/Connector TypeFemale connector

This part fits 3 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2003FordExcursion6.0LV8N/A
2003FordF-250 Super Duty6.0LV8N/A
2003FordF-350 Super Duty6.0LV8N/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:

3C3Z9D930AAIFH2

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