Dorman 599-173 HVAC Control Module - Front

Dorman 599-173 HVAC Control Module

Restore cabin climate control operation with this Dorman HVAC Control Module for manual air conditioning systems. Built as a tested replacement for the original unit, it addresses failed controls without requiring programming.

Key Features

• Direct replacement HVAC control module for manual air conditioning systems
• No programming required after installation
• 2 connectors with female terminals and black housing
• Bolt-on mounting style for a secure fit
• Compatible with vehicles that use rear window defogger and no heated mirrors
• Cross-reference: 5L3419980BA

Detailed Description

The Dorman 599-173 HVAC Control Module is a replacement climate control unit for select Ford F-150 and Lincoln Mark LT applications. It is built for vehicles with manual air conditioning controls, rear window defogger, and no heated mirrors. This module uses a pin-style terminal layout with 2 connectors and a bolt-on design, making it a practical solution when the original HVAC control head stops responding or functions inconsistently.

Fits 2005 Ford F-150, N/A; Fits 2006-2008 Ford F-150, N/A; Fits 2007-2008 Lincoln Mark LT, Front. This part number, 599-173, is also referenced for the same application as 5L3419980BA.

Common Problems It Can Solve

• Loss of blower, temperature, or mode control from the dash panel
• Unresponsive HVAC buttons or knobs
• Intermittent climate control operation
• Failed original control module in manual A/C systems
• Restoration of rear window defogger control function when the original unit fails

Installation Notes and Tips

Verify the vehicle has manual air conditioning controls before ordering. This module does not require programming, but connector count, terminal layout, and mounting style should match the original unit. Confirm the application details for your Ford F-150 or Lincoln Mark LT, including rear window defogger and heated mirror configuration, before installation.

Quality Assurance

This Dorman HVAC Control Module is a fully tested replacement unit built to restore original control function in the specified applications. It is intended for direct replacement use in compatible Ford F-150 and Lincoln Mark LT models.