HomeElectrical, Lighting and Body > SwitchesStandard Ignition DFG43 Defroster Switch
Part #: DFG43

Standard Ignition DFG43 Defroster Switch

⚙️ 13 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Ford and Mercury, Explorer, Explorer Sport, Explorer Sport Trac, and Mountaineer
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Reliable Window Defroster Switch for Ford and Mercury Vehicles

The Standard Ignition DFG43 window defroster switch is designed to restore proper defroster function in select Ford and Mercury models. Engineered with precise terminal configurations, this switch ensures seamless integration and reliable operation in your vehicle's climate control system.

Key Features of the Standard Ignition DFG43 Switch

  • Compatible with Ford Explorer, Explorer Sport, Explorer Sport Trac, and Mercury Mountaineer
  • Female connector gender for secure wiring connections
  • Four male blade terminals for reliable electrical contact
  • Terminal quantity: 4, supporting multiple circuit connections
  • Terminal type: 4 blade terminals designed for durability and fit

Detailed Description of the Window Defroster Switch

The Standard Ignition DFG43 window defroster switch is a direct replacement part engineered to match the original equipment specifications for Ford Explorer, Explorer Sport, Explorer Sport Trac, and Mercury Mountaineer models. Featuring a female connector and four male blade terminals, this switch provides a stable and secure electrical connection necessary for activating the rear window defroster. The four blade terminals are designed to handle multiple electrical pathways, ensuring consistent performance and longevity. This switch is essential for maintaining clear visibility during cold or humid conditions by controlling the defroster system effectively.

Common Issues Addressed by the DFG43 Window Defroster Switch

  • Non-responsive rear window defroster
  • Intermittent defroster operation or failure to activate
  • Electrical connection problems due to worn or damaged terminals
  • Switch malfunction causing defroster circuit interruptions
  • Replacement for faulty or broken defroster control switches

Installation Notes and Tips

  • Ensure vehicle ignition is off before installation to prevent electrical shorts
  • Verify connector gender and terminal type match the vehicle’s wiring harness
  • Carefully disconnect the old switch and note terminal positions for correct wiring
  • Securely connect the female connector and confirm all four blade terminals are properly seated
  • Test the defroster function after installation to confirm proper operation

Quality Assurance and Warranty Information

Standard Ignition parts are manufactured to meet or exceed OEM standards, providing reliable performance and durability. The DFG43 window defroster switch undergoes rigorous quality control to ensure fitment and function for compatible Ford and Mercury models. Warranty coverage details are provided by Standard Ignition and typically include protection against manufacturing defects for a specified period.

BrandStandard Ignition
Part NumberDFG43
Connector GenderFemale
Terminal GenderMale
Terminal Type4 Blade Terminals

This part fits 13 vehicles. Search below:

YearMakeModelSubmodelPositionNotes
2003FordExplorerN/ARear window defogger module connector compatible with rear HVAC floor mode door actuator harness and power seat switch.
2002FordExplorer SportN/ARear window defogger module connector compatible with rear HVAC floor mode door actuator harness and power seat switch.
2001FordExplorerN/ARear window defogger module connector compatible with rear HVAC floor mode door actuator harness and power seat switch.
2001FordExplorer Sport TracN/ARear window defogger module connector compatible with rear HVAC floor mode door actuator harness and power seat switch.
2001MercuryMountaineerN/ARear window defogger module connector compatible with rear HVAC floor mode door actuator harness and power seat switch.
2000FordExplorerN/ARear window defogger module connector compatible with rear HVAC floor mode door actuator harness and power seat switch.
2000MercuryMountaineerN/ARear window defogger module connector compatible with rear HVAC floor mode door actuator harness and power seat switch.
1999FordExplorerN/ARear window defogger module connector compatible with rear HVAC floor mode door actuator harness and power seat switch.
1999MercuryMountaineerN/ARear window defogger module connector compatible with rear HVAC floor mode door actuator harness and power seat switch.
1998FordExplorerEddie BauerN/ARear window defogger module connector compatible with rear HVAC floor mode door actuator harness and power seat switch.
1998FordExplorerXLN/ARear window defogger module connector compatible with rear HVAC floor mode door actuator harness and power seat switch.
1998FordExplorerXLTN/ARear window defogger module connector compatible with rear HVAC floor mode door actuator harness and power seat switch.
1998MercuryMountaineerN/ARear window defogger module connector compatible with rear HVAC floor mode door actuator harness and power seat switch.

* 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:

1S286853-16017F87Z18C621AAPA1386S52025SW3069

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