Four Seasons 37645 HVAC Blower Control Switch

Name: Four Seasons 37645 HVAC Blower Control Switch
Brand: Walker
SKU: BBRN-37645
Price: 50.58 USD
Availability: InStock

Selector Switch

⚙️ 42 vehicles fit this part

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Select your vehicle to confirm fitment

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📦Selector Switch

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Overview of Four Seasons Selector Switch 37645

The Four Seasons Selector Switch 37645 is a reliable HVAC blower control switch designed specifically for various Saturn models. Engineered to provide precise blower speed selection, this switch ensures optimal climate control performance in your vehicle's heating and cooling system.

Compatible with Saturn L100, L200, L300, LS, LS1, LS2, LW1, LW2, LW200, and LW300 models
Part number 37645 for accurate identification and fitment
Female rectangular connector for secure electrical connection
Six-terminal design for comprehensive blower control
Type: Blower control switch for HVAC systems

Detailed Product Description

The Four Seasons Selector Switch 37645 belongs to the Selector Switch product line, which focuses on providing dependable and precise HVAC control components. This blower control switch features a female rectangular connector that ensures a stable and secure connection within the vehicle's electrical system. With six terminals, it supports multiple blower speed settings, allowing for smooth and consistent operation of the HVAC blower motor.

Designed for use in Saturn vehicles including the L100, L200, L300, LS series, and LW series, this switch is engineered to meet the specific electrical and mechanical requirements of these models. The part number 37645 helps technicians and vehicle owners confirm compatibility and streamline replacement procedures.

Common Applications and Issues Addressed

Restores proper blower motor speed control in Saturn L100 and L200 HVAC systems
Resolves intermittent or non-functioning blower switch problems in Saturn LS and LW models
Eliminates blower control switch failure symptoms such as no airflow or stuck fan speeds
Improves HVAC system responsiveness and user control over cabin temperature

Installation Notes and Tips

Ensure vehicle ignition is off before beginning installation to prevent electrical shorts
Verify connector gender and shape match the existing wiring harness (female rectangular connector)
Check that all six terminals are properly seated and free of corrosion for optimal performance
Consult vehicle service manual for specific removal and installation procedures on Saturn L-series and LW-series models

Quality Assurance and Warranty

Four Seasons maintains strict quality control standards for the Selector Switch product line, including part number 37645. Each switch undergoes rigorous testing to ensure durability and reliable operation within the HVAC system. While specific warranty details may vary, Four Seasons typically offers coverage against manufacturing defects to provide confidence in product longevity and performance.

This part fits 42 vehicles. Search below:

Year	Make	Model	Position	Notes
2005	Saturn	L300	N/A	Selector Switch
2005	Saturn	L300	N/A	Prior to purchase, ensure compatibility with vehicle's make, model, and year for HVAC Blower Control Switch.; Selector Switch
2004	Saturn	L300	N/A	Selector Switch
2004	Saturn	L300	N/A	Prior to purchase, ensure compatibility with vehicle's make, model, and year for HVAC Blower Control Switch.; Selector Switch
2003	Saturn	L200	N/A	Selector Switch
2003	Saturn	L200	N/A	Prior to purchase, ensure compatibility with vehicle's make, model, and year for HVAC Blower Control Switch.; Selector Switch
2003	Saturn	L300	N/A	Selector Switch
2003	Saturn	L300	N/A	Prior to purchase, ensure compatibility with vehicle's make, model, and year for HVAC Blower Control Switch.; Selector Switch
2003	Saturn	LW200	N/A	Selector Switch
2003	Saturn	LW200	N/A	Prior to purchase, ensure compatibility with vehicle's make, model, and year for HVAC Blower Control Switch.; Selector Switch
2003	Saturn	LW300	N/A	Selector Switch
2003	Saturn	LW300	N/A	Prior to purchase, ensure compatibility with vehicle's make, model, and year for HVAC Blower Control Switch.; Selector Switch
2002	Saturn	L100	N/A	Selector Switch
2002	Saturn	L100	N/A	Prior to purchase, ensure compatibility with vehicle's make, model, and year for HVAC Blower Control Switch.; Selector Switch
2002	Saturn	L200	N/A	Selector Switch
2002	Saturn	L200	N/A	Prior to purchase, ensure compatibility with vehicle's make, model, and year for HVAC Blower Control Switch.; Selector Switch
2002	Saturn	L300	N/A	Selector Switch
2002	Saturn	L300	N/A	Prior to purchase, ensure compatibility with vehicle's make, model, and year for HVAC Blower Control Switch.; Selector Switch
2002	Saturn	LW200	N/A	Selector Switch
2002	Saturn	LW200	N/A	Prior to purchase, ensure compatibility with vehicle's make, model, and year for HVAC Blower Control Switch.; Selector Switch
2002	Saturn	LW300	N/A	Selector Switch
2002	Saturn	LW300	N/A	Prior to purchase, ensure compatibility with vehicle's make, model, and year for HVAC Blower Control Switch.; Selector Switch
2001	Saturn	L100	N/A	Selector Switch
2001	Saturn	L100	N/A	Prior to purchase, ensure compatibility with vehicle's make, model, and year for HVAC Blower Control Switch.; Selector Switch
2001	Saturn	L200	N/A	Selector Switch
2001	Saturn	L200	N/A	Prior to purchase, ensure compatibility with vehicle's make, model, and year for HVAC Blower Control Switch.; Selector Switch
2001	Saturn	L300	N/A	Selector Switch
2001	Saturn	L300	N/A	Prior to purchase, ensure compatibility with vehicle's make, model, and year for HVAC Blower Control Switch.; Selector Switch
2001	Saturn	LW200	N/A	Selector Switch
2001	Saturn	LW200	N/A	Prior to purchase, ensure compatibility with vehicle's make, model, and year for HVAC Blower Control Switch.; Selector Switch
2001	Saturn	LW300	N/A	Selector Switch
2001	Saturn	LW300	N/A	Prior to purchase, ensure compatibility with vehicle's make, model, and year for HVAC Blower Control Switch.; Selector Switch
2000	Saturn	LS	N/A	Selector Switch
2000	Saturn	LS	N/A	Prior to purchase, ensure compatibility with vehicle's make, model, and year for HVAC Blower Control Switch.; Selector Switch
2000	Saturn	LS1	N/A	Selector Switch
2000	Saturn	LS1	N/A	Prior to purchase, ensure compatibility with vehicle's make, model, and year for HVAC Blower Control Switch.; Selector Switch
2000	Saturn	LS2	N/A	Selector Switch
2000	Saturn	LS2	N/A	Prior to purchase, ensure compatibility with vehicle's make, model, and year for HVAC Blower Control Switch.; Selector Switch
2000	Saturn	LW1	N/A	Selector Switch
2000	Saturn	LW1	N/A	Prior to purchase, ensure compatibility with vehicle's make, model, and year for HVAC Blower Control Switch.; Selector Switch
2000	Saturn	LW2	N/A	Selector Switch
2000	Saturn	LW2	N/A	Prior to purchase, ensure compatibility with vehicle's make, model, and year for HVAC Blower Control Switch.; Selector Switch

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