Four Seasons 37539 HVAC Blend Door Actuator for 1999-2002 Chevrolet Silverado 1500

Build Quality & Materials

• Durable construction ensures consistent movement of airflow doors over time.
• Engineered to resist wear from repeated operation and mechanical stress.
• Designed for stable performance under normal HVAC system conditions.

Installation Notes

• Disconnect the battery before servicing HVAC electrical components.
• Verify correct actuator position and alignment prior to installation.
• Test system operation after installation to confirm proper airflow control.

Why Choose Four Seasons?

Four Seasons is a trusted leader in climate control and engine cooling components, supplying automotive replacement parts designed to support reliable system operation and long-term performance. With decades of industry experience, Four Seasons focuses on practical engineering solutions that help maintain comfort, efficiency, and dependability across a wide range of vehicle applications.

• Specialized focus on HVAC and engine cooling systems.
• Engineering-driven designs developed for consistent system operation.
• Components built for durability under normal driving conditions.
• Trusted by professional technicians and installers for reliable aftermarket solutions.

Four Seasons Engineering Advantage

Four Seasons applies proven engineering practices and application-specific design standards to develop components that support proper system function, consistent performance, and long-term reliability. Each part is designed to meet the operational demands of automotive HVAC and cooling systems, helping maintain stable performance under normal operating conditions.

Shipping & Warranty

• Fast U.S. shipping from our warehouse on business days.
• Free returns if the part does not fit or you are not satisfied (see store policy for details).
• 1-year warranty on this part from date of purchase.

Item Specifics (Technical)

• California Proposition 65: WARNING: This product contains a chemical known to the State of California to cause cancer and birth defects or other reproductive harm.
• Door Linkage: Female
• Mounting Ear Qty.: 3
• Style: HVAC Air Door Actuator
• Terminal Pin Qty.: 5

Interchange Part Numbers

• 1572507
• 1712062
• 37539
• 52474810
• 604101
• 6551546
• A10139
• BDAC1010
• DA1042
• GM0613013
• MT18517

Vehicle Compatibility

• Cadillac Escalade
  • 2002 Cadillac Escalade - Driver's Side Vents Position: Lower Main;
• Cadillac Escalade EXT
  • 2002 Cadillac Escalade EXT - Driver's Side Vents Position: Lower Main;
• Chevrolet Avalanche 1500
  • 2002 Chevrolet Avalanche 1500 - Driver's Side Vents Position: Lower Main;
• Chevrolet Avalanche 2500
  • 2002 Chevrolet Avalanche 2500 - Driver's Side Vents Position: Lower Main;
• Chevrolet Silverado 1500
  • 1999 Chevrolet Silverado 1500
  • 2000-2002 Chevrolet Silverado 1500 - Position: Lower Main;
• Chevrolet Silverado 1500 HD
  • 2001-2002 Chevrolet Silverado 1500 HD - Position: Lower Main;
• Chevrolet Silverado 2500
  • 1999 Chevrolet Silverado 2500
  • 2000-2002 Chevrolet Silverado 2500 - Position: Lower Main;
• Chevrolet Silverado 2500 HD
  • 2001-2002 Chevrolet Silverado 2500 HD - Position: Lower Main;
• Chevrolet Silverado 3500
  • 2001-2002 Chevrolet Silverado 3500 - Position: Lower Main;
• Chevrolet Suburban 1500
  • 2000-2002 Chevrolet Suburban 1500 - Position: Lower Main;
• Chevrolet Suburban 2500
  • 2000-2002 Chevrolet Suburban 2500 - Position: Lower Main;
• Chevrolet Tahoe
  • 2000-2002 Chevrolet Tahoe - Position: Lower Main;
• GMC Sierra 1500
  • 1999 GMC Sierra 1500
  • 2000-2002 GMC Sierra 1500 - Position: Lower Main;
• GMC Sierra 1500 HD
  • 2001-2002 GMC Sierra 1500 HD - Position: Lower Main;
• GMC Sierra 2500
  • 1999 GMC Sierra 2500
  • 2001-2002 GMC Sierra 2500 - Position: Lower Main;
• GMC Sierra 2500 HD
  • 2001-2002 GMC Sierra 2500 HD - Position: Lower Main;
• GMC Sierra 3500
  • 2001-2002 GMC Sierra 3500 - Position: Lower Main;
• GMC Yukon
  • 2000-2002 GMC Yukon - Position: Lower Main;
• GMC Yukon XL 1500
  • 2000-2002 GMC Yukon XL 1500 - Position: Lower Main;
• GMC Yukon XL 2500
  • 2000-2002 GMC Yukon XL 2500 - Position: Lower Main;