Dorman 604-020 HVAC Blend Door Actuator - Main

Dorman HVAC Blend Door Actuator for Jeep

Dorman 604-020 is a rotary HVAC blend door actuator built for specific Jeep heating and air conditioning systems. It is precision-engineered to match the quality and performance of the original actuator on listed applications, including Jeep Wrangler, Jeep TJ, and Jeep Cherokee models.

This HVAC blend door actuator uses a plastic housing and is supplied as the actuator only. It is a direct-fit replacement for the temperature control blend function in the main HVAC case on the vehicles shown below.

Key Features

• Rotary switch activation type for blend door control
• Plastic construction for OE-style fit and function
• Replacement actuator for the main HVAC blend door position
• Built for Jeep Wrangler, Jeep TJ, and Jeep Cherokee applications
• Dorman 604-020 replacement part number for service and repair

Detailed Description

Use Dorman 604-020 when the HVAC system needs a replacement blend door actuator that matches the original design on select Jeep vehicles. This part is engineered for the main blend door function, helping restore temperature control in the cabin HVAC system. It cross-references TechSmart F04055 for the same application.

Compatible With: Fits 2000-2006 Jeep TJ, Main; Fits 1998-2006 Jeep Wrangler, Main; Fits 1999-2001 Jeep Cherokee, Main; Fits 1998-1999 Jeep TJ, Main; Fits 1998 Jeep Cherokee, Main.

Common Problems This Part Can Address

• Inconsistent cabin temperature from the HVAC vents
• Blend door movement issues in the heater and A/C system
• Loss of hot or cold air control at the dash
• HVAC actuator noise during temperature changes
• Failure of the main blend door to respond to control input

Installation Notes and Tips

Verify the vehicle year, make, model, and HVAC position before ordering. This actuator is for the main blend door location listed in the fitment data, and the notes indicate box packaging on the applicable vehicles. Confirm the original part number and connector style against the removed unit before installation.

Quality Assurance

Dorman designs this HVAC heater blend door actuator to match the quality and performance of the original actuator on the specified Jeep applications. Part number 604-020 is built as an OE-style replacement for service work on the listed vehicles.