HomeHVAC > Motors, Core, Case and Related ComponentsFour Seasons 20505 HVAC Blower Motor Resistor - Front or Rear
Part #: 20505

Four Seasons 20505 HVAC Blower Motor Resistor - Front or Rear

Resistor Block, Rear
⚙️ 35 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
📦Resistor Block, Rear
🚗Fitment: Ford and Lincoln, Explorer Sport Trac, Explorer Sport, Blackwood, Expedition, and Explorer
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Overview of Four Seasons Resistor Block 20505

The Four Seasons Resistor Block 20505 is designed to regulate blower motor speeds in HVAC systems for select Ford and Lincoln vehicles. This HVAC blower motor resistor ensures consistent airflow control, specifically engineered for models like the Ford Explorer and Lincoln Blackwood.

  • Connector Gender: Female
  • Connector Shape: Rectangular
  • Number of Terminals: 3
  • Speed Setting: Fixed #2
  • Type: Switches

About the Four Seasons Resistor Block Product Line

The Resistor Block line by Four Seasons focuses on reliable HVAC components that maintain proper blower motor function. This product line includes resistors designed to match OEM specifications, providing stable blower motor speed control and compatibility with various vehicle models. The 20505 resistor block is part of this line, offering a precise fit and consistent performance for Ford and Lincoln HVAC systems.

Detailed Product Description

The Four Seasons 20505 resistor block features a female rectangular connector with three terminals, designed to interface seamlessly with the vehicle's HVAC wiring harness. Its fixed speed setting (#2) allows it to regulate blower motor speed effectively, ensuring proper airflow through the heating and cooling system. This resistor block is a switch-type component, integral to controlling the blower motor's operation in vehicles such as the Ford Expedition and Explorer Sport Trac.

Common Applications and Issues Addressed

  • Restores blower motor speed control in Ford Blackwood and Lincoln models
  • Resolves HVAC blower motor stuck on one speed or not working at certain speeds
  • Fixes inconsistent airflow or blower motor failure due to resistor block malfunction
  • Addresses electrical connection issues with a female rectangular connector
  • Improves HVAC system reliability in Ford Explorer Sport and Expedition vehicles

Installation Notes and Tips

  • Ensure vehicle compatibility with Ford and Lincoln models listed before installation
  • Disconnect the battery before replacing the resistor block to avoid electrical shorts
  • Verify the connector gender and shape match the existing wiring harness (female, rectangular)
  • Handle the resistor block carefully to avoid damage to terminals during installation
  • Test blower motor operation at all speeds after installation to confirm proper function

Quality Assurance and Warranty

Four Seasons manufactures the 20505 resistor block to meet or exceed OEM standards for durability and performance. While specific warranty details are not provided here, Four Seasons products typically come with a limited warranty covering defects in materials and workmanship. This ensures dependable operation for HVAC blower motor control in compatible Ford and Lincoln vehicles.

BrandFour Seasons
Part Number20505
PositionResistor Block, Rear
Connector GenderFemale
Connector ShapeRectangular
DescriptionResistor Block
Number of Terminals3
SpeedFixed # 2
TypeSwitches

This part fits 35 vehicles. Search below:

YearMakeModelPositionNotes
2005FordExplorer Sport TracRearResistor Block
2004FordExplorer Sport TracRearResistor Block
2003FordExplorer SportRearResistor Block
2003FordExplorer Sport TracRearResistor Block
2003LincolnBlackwoodN/AConsole; Resistor Block
2002FordExpeditionN/AConsole; Resistor Block
2002FordExpeditionFrontConsole; Resistor Block
2002FordExpeditionRearConsole; Resistor Block
2002FordExplorer SportRearResistor Block
2002FordExplorer Sport TracRearResistor Block
2002LincolnBlackwoodN/AFor Console; Resistor Block
2001FordExpeditionN/AConsole; Resistor Block
2001FordExpeditionFrontConsole; Resistor Block
2001FordExpeditionRearConsole; Resistor Block
2001FordExplorerRearResistor Block
2001FordExplorer SportRearResistor Block
2001FordExplorer Sport TracRearMotor Resistor
2000FordExpeditionN/AConsole; Resistor Block
2000FordExpeditionFrontConsole; Resistor Block
2000FordExpeditionRearConsole; Resistor Block
2000FordExplorerN/AFor Console; Resistor Block
1999FordExpeditionN/AConsole; Resistor Block
1999FordExpeditionFrontConsole; Resistor Block
1999FordExpeditionRearConsole; Resistor Block
1999FordExplorerN/AFor Console; Resistor Block
1998FordExpeditionN/AConsole; Resistor Block
1998FordExpeditionFrontConsole; Resistor Block
1998FordExpeditionRearConsole; Resistor Block
1998FordExplorerN/AFor Console; Resistor Block
1997FordExpeditionN/AConsole; Resistor Block
1997FordExpeditionFrontConsole; Resistor Block
1997FordExpeditionRearConsole; Resistor Block
1997FordExplorerN/AFor Console; Resistor Block
1996FordExplorerN/AFor Console; Resistor Block
1995FordExplorerN/AFor Console; Resistor Block

* 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:

205054L1Z19A706AA4P13684P1582973527A06855F5TZ19A706AJA1705SW11529CYH31

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