HomeHVAC > Temperature Controls and Related ComponentsFour Seasons 73451 HVAC Blend Door
Part #: 73451

Four Seasons 73451 HVAC Blend Door

HVAC Blend Door Kit
⚙️ 8 vehicles fit this part
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Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
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✅ In Stock · Ready To Ship Most orders ship same-day if ordered before 1pm CST.
OE Direct Replacement — Bolt-on fit, no modifications needed
📦HVAC Blend Door Kit
🚗Fitment: Chevrolet and Pontiac, Equinox and Torrent
🔄Easy Returns — Return within 60 days for a full refund
🚚Fast Shipping — Most orders ship same business day before 1pm CST

Overview of Four Seasons HVAC Blend Door Kit 73451

The Four Seasons HVAC Blend Door Kit 73451 is a replacement plastic door designed for precise temperature control in select Chevrolet and Pontiac vehicles. This component is engineered to restore proper airflow and temperature regulation within the HVAC system of your Chevrolet Equinox or Pontiac Torrent.

  • Replacement HVAC blend door made of durable plastic
  • Dimensions: 11 inches length, 4.5 inches height, 0.75 inches width
  • Compatible with Chevrolet Equinox and Pontiac Torrent models
  • Part number 73451 for accurate identification
  • Designed to regulate airflow and temperature inside the vehicle cabin

Detailed Product Description

The Four Seasons HVAC Blend Door Kit 73451 is constructed from sturdy plastic material, measuring 11 inches in length, 4.5 inches in height, and 0.75 inches in width (280 mm x 114.3 mm x 19 mm). This replacement door is a critical component within the HVAC system, responsible for directing airflow through the heater core and evaporator to achieve the desired cabin temperature. Specifically designed for Chevrolet Equinox and Pontiac Torrent models, this part ensures compatibility and proper fitment, maintaining the integrity of your vehicle’s temperature control system.

About the HVAC Blend Door Kit Product Line

The HVAC Blend Door Kit product line by Four Seasons focuses on providing reliable replacement doors that regulate airflow within the heating and cooling systems of various vehicles. These kits are engineered to meet OEM specifications, offering a direct replacement solution to restore HVAC functionality. The 73451 part is part of this line, emphasizing precise fit and durable construction to maintain consistent temperature control in Chevrolet and Pontiac vehicles.

Common Issues Resolved by This HVAC Blend Door

  • Inconsistent cabin temperature due to faulty blend door operation
  • Unusual noises from the HVAC system caused by broken or stuck doors
  • Inability to switch between heating and cooling modes effectively
  • Reduced airflow or improper air distribution inside the vehicle
  • HVAC system failure to maintain set temperature settings

Installation Notes and Tips

Installation of the Four Seasons HVAC Blend Door Kit 73451 requires removal of the dashboard or HVAC housing to access the blend door assembly. It is recommended to consult the vehicle’s service manual for detailed instructions specific to Chevrolet Equinox or Pontiac Torrent models. Ensure all electrical connectors and HVAC components are properly reassembled to avoid leaks or operational issues. Using the correct tools and following safety precautions will facilitate a smooth installation process.

Quality Assurance and Warranty

Four Seasons manufactures the HVAC Blend Door Kit 73451 to meet industry standards for durability and performance. The plastic construction is designed to withstand typical HVAC system conditions. While specific warranty details are not provided here, Four Seasons products generally come with a limited warranty against defects in materials and workmanship. Verify warranty terms with the product documentation or supplier.

BrandFour Seasons
Part Number73451
PositionHVAC Blend Door Kit
DescriptionReplacement Door
FunctionDOOR KIT
Height IN4.5
Height MM114.3
Length IN11
Length MM280
MaterialPLASTIC
Width IN0.75
Width MM19

This part fits 8 vehicles. Search below:

YearMakeModelPositionNotes
2009ChevroletEquinoxN/ADoor Only; HVAC Blend Door Kit
2009PontiacTorrentN/ADoor Only; HVAC Blend Door Kit
2008ChevroletEquinoxN/ADoor Only; HVAC Blend Door Kit
2008PontiacTorrentN/ADoor Only; HVAC Blend Door Kit
2007ChevroletEquinoxN/ADoor Only; HVAC Blend Door Kit
2007PontiacTorrentN/ADoor Only; HVAC Blend Door Kit
2006ChevroletEquinoxN/ADoor Only; HVAC Blend Door Kit
2006PontiacTorrentN/ADoor Only; HVAC Blend Door Kit

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

1578150117123721913055473451902500A60451BDDD1001DA1387

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.