2003 Ford Truck F250 Super Duty Engine Wiring Harness — Part # FGX2 — Spalding Auto Parts · Spokane, WA

Engine Wiring Harness for 2003 Ford Truck F250 Super Duty

Product Details

$274

Part Number

FGX2

Vehicle

2003 Ford Truck F250 Super Duty

Description

7.3TD, AT, 4X4, 1837761C91
Enhanced product content

Fitment & Buyer Verification

This engine wiring harness is designed for 2002–2003 Ford Truck F250 Super Duty models equipped with the 7.3L Powerstroke diesel engine and automatic transmission. It is a direct replacement part matching OEM numbers such as F81Z-12B637-FA and 1837761C91, suitable for 4x4 configurations without California emissions.

Source backed
Fitment checks

Vehicle Compatibility

Use these records to confirm the vehicle match before purchase.

CheckWhat to verifyBuyer actionBasis
Model Year2002-2003Confirm this detail before ordering.
Product recordHigh
Vehicle ModelFord Truck F250 Super DutyConfirm this detail before ordering.
Product recordHigh
Engine Type7.3L Powerstroke DieselConfirm this detail before ordering.
Listing noteHigh
Transmission TypeAutomaticConfirm this detail before ordering.
Listing noteHigh
Drivetrain4x4Confirm this detail before ordering.
Listing noteMedium
Option checks

Configuration Details

Match trim, equipment, and listing-specific details against your vehicle.

CheckWhat to verifyBuyer actionBasis
Emissions ConfigurationNon-California emissionsVerify emissions compliance for your vehicle, especially if California emissions apply.
Listing noteMedium
Part Number MatchF81Z-12B637-FA, 1837761C91, P659932, or 12B637Confirm the part number stamped on the harness matches one of these OEM numbers before purchase.
Listing noteHigh
Included parts

Included Component Checks

Review what appears to be included and what still needs confirmation.

ComponentStatusNoteConfidence
Engine wiring harness assemblyverifyIncludes connectors and sensor plugs; inspect for broken clips or damage before installation.Medium
Before ordering

Buyer Verification Checklist

  • Confirm vehicle year, model, engine type, and transmission match the harness specifications.
  • Verify the part number on the harness matches OEM numbers F81Z-12B637-FA or 1837761C91.
  • Inspect connectors and clips for damage or wear, especially sensor plug clips.
  • Check emissions configuration compatibility, particularly for California vs. non-California vehicles.
Condition review

Condition & Inspection Notes

  • Check for intact connectors and sensor plug clips to ensure proper fitment and function.
  • Inspect wiring insulation for cracks, breaks, or corrosion.
  • Confirm no missing or damaged terminals or pins.
Common questions

Product Fitment FAQs

Is this harness compatible with manual transmission models?

This harness is specified for automatic transmission models only; compatibility with manual transmissions is uncertain and should be verified.

Can this harness be used on California emissions vehicles?

This harness is listed for non-California emissions configurations; verify compatibility if your vehicle is California-spec.

Dealer Information

Spokane, WA

Spalding Auto Parts

Call (800) 366-2070

Dealer area: Spokane, WA. Exact dealer coordinates are unavailable; call to confirm the address.

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