Dorman 904-249 Diesel Glow Plug Wiring Harness - Left

Brand Dorman 904-249
Position Left
Color Black
Insulator Material PTFE
Length 34.5
Package Contents 1 Harness
RFI Suppression No
Terminal Gender Female
Terminal Material Copper/Steel
Universal Or Specific Fit Specific
Wire Core Material Tinned Copper
Wire Gauge Measurement AWG 14
Fits Ford · 10 vehicles

OE direct replacement. Matches the fit and function of the original equipment harness.

PTFE insulation. Helps deliver durable, reliable performance in demanding conditions.

Tinned copper wiring. Built with quality materials for dependable electrical connection.

Cross-references Standard Ignition GPH104, 5c3z12a690a and 261004 for the same application. See all 3.

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Diesel Glow Plug Wiring Harness for Ford Super Duty

Dorman 904-249 is a direct replacement diesel glow plug wiring harness for specific Ford applications with cold-start complaints or a check engine light related to glow plug circuit performance. It is built to match the original harness fit and function while using durable materials for reliable electrical connection.

  • Direct replacement for the original glow plug wiring harness
  • Specific fit for selected Ford F-250 Super Duty, F-350 Super Duty, and Excursion diesel applications
  • 34.5-inch length with black insulation
  • PTFE insulator material for heat resistance
  • 14 AWG wire gauge with tinned copper wire core
  • Female terminals made from copper/steel
  • 4-wire harness configuration

Fitment and Application Details

Compatible with 2005-2007 Ford F-250 Super Duty, left; 2005-2007 Ford F-350 Super Duty, left; and 2005 Ford Excursion, left. It also fits 2004 Ford Excursion, left, and 2004 Ford F-250 Super Duty, left, from 1/15/04, plus 2004 Ford F-350 Super Duty, left, from 1/15/04. Dorman 904-249 is a specific-fit replacement for these diesel engine applications, making it a practical choice when servicing the glow plug circuit on Ford Super Duty trucks and Excursion models.

This part cross-references Standard Ignition GPH104 for the same application.

What It Helps Address

  • Hard starting in cold weather
  • Glow plug circuit faults that trigger a check engine light
  • Damaged, heat-aged, or brittle original wiring
  • Intermittent electrical connection at the glow plug harness
  • Restoring proper glow plug signal delivery on diesel engines

Installation Notes and Tips

Verify left-side application and model year before installation, especially on 2004 vehicles with the 1/15/04 build-date note. Inspect the glow plug connectors, terminals, and nearby wiring for corrosion or heat damage before installing the replacement harness. Confirm routing matches the original layout to maintain secure fitment and proper wire clearance.

Quality Assurance

Dorman manufactures this replacement harness to match the fit and function of the original equipment part and uses quality materials for durability and dependable performance. Part number 904-249 is engineered as a specific-fit replacement for the listed Ford diesel applications.

This part fits 10 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersFuel TypePositionNotes
2007FordF-250 Super Duty6.0LV8DIESELLeft—
2007FordF-350 Super Duty6.0LV8DIESELLeft—
2006FordF-250 Super Duty6.0LV8DIESELLeft—
2006FordF-350 Super Duty6.0LV8DIESELLeft—
2005FordExcursion6.0LV8DIESELLeft—
2005FordF-250 Super Duty6.0LV8DIESELLeft—
2005FordF-350 Super Duty6.0LV8DIESELLeft—
2004FordExcursion6.0LV8DIESELLeftFrom 1/15/04
2004FordF-250 Super Duty6.0LV8DIESELLeftFrom 1/15/04
2004FordF-350 Super Duty6.0LV8DIESELLeftFrom 1/15/04
Directly replaces or cross-references 3 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Standard Ignition — GPH1045c3z12a690a261004