Four Seasons 73481 HVAC Mode Door

HVAC Mode Door Replacement for Ram Trucks

Four Seasons HVAC Blend Door Kit 73481 is a replacement door for the HVAC mode circuit, with a focus on defrost mode control. Built from plastic and sized at 6.875 in. long, 4.75 in. high, and 0.62 in. wide, it is made for direct service of the temperature control system in select Dodge Ram trucks. This Four Seasons 73481 part supports accurate air distribution when the original mode door is worn, cracked, or no longer moving correctly.

Key Features

• Replacement door for HVAC mode operation, including defrost mode
• Plastic construction for service replacement in the HVAC housing
• Dimensions: 6.875 in. length, 4.75 in. height, 0.62 in. width
• Four Seasons HVAC Blend Door Kit line for temperature control repair
• Direct-fit application coverage for select Dodge Ram 1500, Ram 2500, and Ram 3500 models

Detailed Product Overview

The Four Seasons HVAC Blend Door Kit 73481 is a mode door replacement used in the HVAC temperature control system to direct airflow through the proper outlet path. In affected Dodge Ram 1500, Ram 2500, and Ram 3500 trucks, a worn or broken mode door can prevent the system from routing air to the defrost vents as commanded. This replacement door restores the mechanical function of the HVAC housing and supports normal cabin airflow control. This part cross-references Global Parts Distributors LLC 1712371 for the same application.

Common Problems This Part Can Address

• Loss of defrost airflow selection
• Broken or cracked HVAC mode door
• Air not routing correctly through the dash vents
• Sticking or inconsistent mode control operation
• HVAC housing repair after internal door failure

Installation Notes and Tips

Fits 2007-2009 Dodge Ram 1500, main HVAC blend door kit application. Fits 2007-2009 Dodge Ram 2500, main HVAC blend door kit application. Fits 2007-2009 Dodge Ram 3500, main HVAC blend door kit application. Fits 2002-2006 Dodge Ram 1500, defrost; installed through glove box area; main HVAC blend door kit application. Fits 2005-2006 Dodge Ram 2500, defrost; installed through glove box area; main HVAC blend door kit application. Fits 2004-2006 Dodge Ram 3500, defrost; installed through glove box area; main HVAC blend door kit application. Fits 2004 Dodge Ram 2500, installed through glove box area; main HVAC blend door kit application. Verify the HVAC housing configuration before service and compare the original door dimensions and mounting points to the replacement part.

Quality Assurance

Four Seasons HVAC Blend Door Kit parts are cataloged for specific vehicle applications and cross-reference OE-style service numbers for accurate replacement selection. Part number 73481 is listed for select Dodge Ram HVAC repairs and is supported by interchange references for application matching.