Dorman 604-001 HVAC Blend Door Actuator - Left Main, Main or Right Main

Dorman 604-001 HVAC Blend Door Actuator

This Dorman HVAC blend door actuator is built for specific Jeep Grand Cherokee applications and is engineered to match the fit and performance of the original unit. It uses a rotary switch activation design and a plastic housing for direct replacement service on the listed vehicles.

Key Features

• Rotary switch activation type for HVAC blend door control
• Plastic construction
• Includes actuator only
• Direct replacement for select Jeep Grand Cherokee HVAC systems
• Part number 604-001 for easy identification

Detailed Description

Dorman 604-001 is an HVAC heater blend door actuator designed for specific 1999-2004 Jeep Grand Cherokee models, including left main, right main, and main positions depending on the vehicle configuration. It is also listed for recirculation and blend applications on Jeep Grand Cherokee vehicles with Automatic Temperature Control (ATC). This actuator is intended to restore proper HVAC door movement so the system can direct air through the correct temperature and recirculation paths. Cross-reference part numbers include Four Seasons 73011 and TechSmart J04002 for the same application.

What This Part Helps Fix

• Inconsistent cabin temperature control
• HVAC air stuck on hot or cold
• Recirculation door movement problems
• Blend door response issues in the dash HVAC system
• Noise or failure from a worn actuator on Jeep Grand Cherokee HVAC controls

Installation Notes and Tips

Verify the position and HVAC function before ordering. This part fits 1999-2004 Jeep Grand Cherokee, left main; 1999-2004 Jeep Grand Cherokee, right main; 2004 Jeep Grand Cherokee, main recirculation; and 1999-2003 Jeep Grand Cherokee, main recirculation with Automatic Temperature Control (ATC) where listed. Confirm the original actuator style and connector match the vehicle’s HVAC setup before installation. After replacement, cycle the HVAC controls to allow the system to relearn door positions if required by the vehicle.

Quality Assurance

Dorman states this heater blend door actuator is precision-engineered to match the quality and performance of the original actuator on the specified vehicle years, makes, and models.