Dorman 973-105 HVAC Blower Motor Resistor - Front

Overview of Dorman HVAC Blower Motor Resistor 973-105

The Dorman HVAC Blower Motor Resistor 973-105 is designed to regulate the blower motor speed in select Mercedes-Benz models. This component ensures proper airflow control within the vehicle's heating and cooling system, maintaining comfort and functionality.

• Compatible with Mercedes-Benz C63 AMG, C230, C250, C300, C350, E63 AMG, E350, E550, GLK350, and SLS AMG models
• Features a rectangular female connector with one connector and four male blade terminals
• Does not include wiring harness or mounting hardware
• Designed without bolt holes for specific mounting applications
• Includes one blower motor resistor per package

Technical Details and Attributes

This HVAC blower motor resistor from Dorman (part number 973-105) is engineered with a rectangular female connector shape that houses four male blade terminals. The terminal type is blade, providing reliable electrical connections for the blower motor control circuit. The resistor does not come with a wiring harness or mounting hardware, so installation requires using existing vehicle components. The absence of bolt holes indicates it mounts in a specific location compatible with the listed Mercedes-Benz models.

Compatible Mercedes-Benz Models

This blower motor resistor is compatible with a range of Mercedes-Benz vehicles, including the C63 AMG, C230, C250, C300, C350, E63 AMG, E350, E550, GLK350, and SLS AMG. When replacing the HVAC blower motor resistor in these models, part number 973-105 is a direct fit, ensuring proper function of the HVAC blower motor speed control.

Common Applications and Issues Resolved

• Restores proper blower motor speed control in HVAC systems
• Eliminates blower motor stuck on one speed or no speed
• Fixes inconsistent airflow from vents
• Resolves overheating issues related to faulty blower motor resistors
• Addresses blower motor failure symptoms caused by resistor malfunction

Installation Notes and Tips

Installation of the Dorman 973-105 blower motor resistor requires accessing the HVAC blower motor housing in the vehicle. Since mounting hardware and wiring harness are not included, retain original components for reinstallation. Ensure the rectangular female connector aligns properly with the male blade terminals during connection. Verify compatibility with your specific Mercedes-Benz model before installation to avoid fitment issues.

Quality Assurance and Warranty

Dorman parts are manufactured to meet or exceed OEM standards for fit, form, and function. The 973-105 blower motor resistor undergoes quality checks to ensure reliable operation within the HVAC system. Warranty coverage details should be confirmed with the distributor or manufacturer, as they may vary by region.