Dorman 973-242 HVAC Blower Motor Resistor - Front

Brand Dorman 973-242
Bolt Hole Quantity 2
Connector Gender Female
Connector Quantity 1
Connector Shape Square
Mounting Hardware Included No
Package Contents Blower Motor Resistor and Instructions
Terminal Gender Male
Terminal Quantity 4
Terminal Type Blade
Wire Quantity 0
Wiring Harness Included No
Fits Mercedes-Benz · 45 vehicles

Direct replacement. Matches original equipment operation and performance.

Restores HVAC function. Helps bring back proper heating and cooling control.

Blade terminals. Features a square female connector for straightforward hookup.

Cross-references 2208210951, JA1751 and RU566 for the same application. See all 4.

$204.59Free shipping
In stock · usually ships same day before 1pm CST
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Free returns within 60 days if it doesn't fit when fitment is verified.

Mercedes-Benz HVAC Blower Motor Resistor

Dorman 973-242 is a direct replacement HVAC blower motor resistor for select Mercedes-Benz E-Class and M-Class applications. It restores proper blower speed control when the original resistor burns out, helping return normal heating and cooling operation.

Key Features

  • Direct replacement for the original blower motor resistor
  • Matches OE operation and performance on listed vehicles
  • Square connector shape with 1 female connector
  • 4 male terminals, 2 bolt holes
  • Package includes the blower motor resistor and instructions
  • Cross-references 2208210951 and RU566 for the same application

Detailed Description

This Dorman HVAC blower motor resistor, part number 973-242, is built for select Mercedes-Benz models including the E300, E320, E350, E550, E63 AMG, E280, E500, E55 AMG, ML350, ML500, ML320, and ML55 AMG. It is used to restore blower motor speed control in vehicles where the factory resistor has failed, helping the HVAC system deliver the correct fan settings again. For buyers searching for a Mercedes-Benz E320 blower motor resistor or a Mercedes-Benz ML320 front blower motor resistor, this replacement follows the original equipment layout and connection style.

What It Helps Fix

  • Blower motor stuck on one speed
  • No fan operation at certain HVAC settings
  • Intermittent cabin airflow control
  • Burnt or failed factory resistor
  • Loss of proper heating and cooling fan adjustment

Installation Notes

Verify connector shape, terminal count, and mounting points before installation. This unit uses a square 1-connector design with 4 terminals and 2 bolt holes, and no wiring harness or mounting hardware is included. Follow the included instructions and confirm vehicle fitment for your specific Mercedes-Benz E-Class or M-Class application before replacing the original part.

Quality Assurance

Dorman designs this replacement resistor to match the function and performance of the original equipment on the listed vehicles. Part number 973-242 is intended for direct replacement use in compatible Mercedes-Benz HVAC systems.

This part fits 45 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelPositionNotes
2009Mercedes-BenzE300N/A
2009Mercedes-BenzE320N/A
2009Mercedes-BenzE350N/A
2009Mercedes-BenzE550N/A
2009Mercedes-BenzE63 AMGN/A
2008Mercedes-BenzE300N/A
2008Mercedes-BenzE320N/A
2008Mercedes-BenzE350N/A
2008Mercedes-BenzE550N/A
2008Mercedes-BenzE63 AMGN/A
2007Mercedes-BenzE280N/A
2007Mercedes-BenzE320N/A
2007Mercedes-BenzE350N/A
2007Mercedes-BenzE550N/A
2007Mercedes-BenzE63 AMGN/A
2006Mercedes-BenzE320N/A
2006Mercedes-BenzE350N/A
2006Mercedes-BenzE500N/A
2006Mercedes-BenzE55 AMGN/A
2005Mercedes-BenzE320N/A
2005Mercedes-BenzE500N/A
2005Mercedes-BenzE55 AMGN/A
2005Mercedes-BenzML350Front
2005Mercedes-BenzML500Front
2004Mercedes-BenzE320N/A
2004Mercedes-BenzE500N/A
2004Mercedes-BenzE55 AMGN/A
2004Mercedes-BenzML350Front
2004Mercedes-BenzML500Front
2003Mercedes-BenzE320N/A
2003Mercedes-BenzE500N/A
2003Mercedes-BenzE55 AMGN/A
2003Mercedes-BenzML320Front
2003Mercedes-BenzML350Front
2003Mercedes-BenzML500Front
2003Mercedes-BenzML55 AMGFront
2002Mercedes-BenzML320Front
2002Mercedes-BenzML500Front
2002Mercedes-BenzML55 AMGFront
2001Mercedes-BenzML320Front
2001Mercedes-BenzML55 AMGFront
2000Mercedes-BenzML320Front
2000Mercedes-BenzML55 AMGFront
1999Mercedes-BenzML320Front
1998Mercedes-BenzML320Front
Directly replaces or cross-references 4 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
2208210951JA1751RU566RU1259