Four Seasons 73479 HVAC Blend Door

Reliable HVAC Blend Door Replacement for Ford Trucks

The Four Seasons HVAC Blend Door Kit part number 73479 offers a precise replacement solution for Ford Excursion, F-250, F-250 Super Duty, and F-350 Super Duty models. Designed to restore proper airflow and temperature control, this blend door is engineered to meet OEM specifications.

• Replacement HVAC blend door for Ford trucks
• Durable plastic construction measuring 8.25 inches long, 4.5 inches high, and 0.5 inches wide
• Compatible with Ford Excursion, F-250, F-250 Super Duty, and F-350 Super Duty
• Part number 73479 ensures exact fit and function
• Part of the Four Seasons HVAC Blend Door Kit product line

About the Four Seasons HVAC Blend Door Kit

The HVAC Blend Door Kit from Four Seasons is a dedicated product line focused on temperature control components within vehicle HVAC systems. This kit includes blend doors designed to regulate airflow and temperature by directing air through the heater core or evaporator. The 73479 blend door is manufactured from durable plastic to withstand repeated use and temperature fluctuations, ensuring consistent climate control performance in compatible Ford trucks.

Product Details and Specifications

This replacement blend door measures 8.25 inches in length (209.55 mm), 4.5 inches in height (114.3 mm), and 0.5 inches in width (12.7 mm). Constructed from plastic, it is designed to fit precisely within the HVAC system of Ford Excursion, F-250, F-250 Super Duty, and F-350 Super Duty models. The blend function of this door allows it to control the mix of hot and cold air, maintaining the desired cabin temperature.

Common Issues Addressed by This Blend Door

• Inconsistent cabin temperature due to faulty blend door operation
• Airflow stuck on hot or cold settings
• Unusual noises from the HVAC system when adjusting temperature
• Failure to properly direct air through heater core or evaporator
• HVAC system not responding to temperature control inputs

Installation Notes and Tips

Installation of the Four Seasons HVAC Blend Door Kit 73479 requires access to the vehicle’s HVAC housing, which may involve removing dashboard panels. Ensure the replacement door aligns correctly with the blend door actuator and other HVAC components. It is recommended to verify compatibility with Ford Excursion, F-250, F-250 Super Duty, and F-350 Super Duty models before installation. Professional installation is advised if unfamiliar with HVAC system repairs.

Quality Assurance and Warranty

Four Seasons manufactures the HVAC Blend Door Kit 73479 to meet industry standards for durability and fitment. The plastic construction is designed to resist wear from temperature cycling and mechanical movement. While specific warranty details are not provided here, Four Seasons products typically come with a limited warranty covering defects in materials and workmanship. Consult product documentation or the manufacturer for exact warranty terms.