Four Seasons 37638 HVAC Blower Control Switch

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Four Seasons 37638 HVAC Blower Control Switch - view 5

Four Seasons 37638 HVAC Blower Control Switch - view 6

DelphiPart #: TD4189W

Four Seasons 37638 HVAC Blower Control Switch

Name: Four Seasons 37638 HVAC Blower Control Switch
Brand: Delphi
SKU: BBRN-37638
Price: 47.08 USD
Availability: InStock

Selector Switch

⚙️ 53 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 37638

The Four Seasons Selector Switch 37638 is a reliable HVAC blower control switch designed for select Buick, Chevrolet, Oldsmobile, and Pontiac models. This switch features a male square connector with five terminals, ensuring precise control of your vehicle's blower system.

Compatible with Buick 88 and 98 models
Fits Chevrolet Caprice, Commercial Chassis, and Custom Cruiser
Suitable for Oldsmobile LSS and Regency
Works with Pontiac Bonneville and Roadmaster
Male connector with square shape and 5 terminals
Part number 37638 for accurate identification

Four Seasons Selector Switch Product Line

The Selector Switch line by Four Seasons focuses on HVAC control components that provide dependable switching functions for blower motors. The 37638 blower control switch is part of this line, offering a precise selector/blower switch designed to meet OEM specifications for various GM vehicles. This product line emphasizes compatibility and durability in HVAC switch applications.

Detailed Product Description

The Four Seasons 37638 HVAC blower control switch is engineered with a male connector featuring a square shape and five terminals, allowing for secure and stable electrical connections. This switch type is specifically designed to control the blower motor speed and selector functions within the HVAC system. Its construction supports consistent performance in regulating airflow inside the vehicle cabin.

Common Applications and Issues Addressed

Replacement for faulty blower control switches in Buick 88 and 98
Restores blower selector functionality in Chevrolet Caprice and Custom Cruiser
Resolves intermittent blower operation in Oldsmobile LSS and Regency
Fixes blower speed control problems in Pontiac Bonneville and Roadmaster
Addresses electrical connection issues related to worn or damaged terminals

Installation Notes and Tips

Ensure vehicle compatibility with Buick, Chevrolet, Oldsmobile, or Pontiac models listed
Disconnect the battery before installation to prevent electrical shorts
Verify the male square connector aligns properly with the vehicle wiring harness
Check all five terminals for secure connection and no corrosion
Test blower operation after installation to confirm proper function

Quality Assurance and Warranty

Four Seasons maintains strict quality control standards for the Selector Switch line, including part number 37638. This HVAC blower control switch is manufactured to meet or exceed OEM specifications for durability and performance. While specific warranty details may vary, Four Seasons products typically include coverage against manufacturing defects to ensure customer confidence in replacement parts.

Brand	Delphi
Part Number	TD4189W
Position	Selector Switch
Inside Diameter	1.18
Item Grade	Standard Replacement
Material	Rubber
Position(s)	Front

This part fits 53 vehicles. Search below:

Year	Make	Model	Body Type	Liters	Cylinders	Position	Notes
1999	Oldsmobile	88				N/A	Selector Switch
1999	Oldsmobile	88				N/A	Prior to purchase, ensure compatibility with vehicle's make, model, and year for HVAC Blower Control Switch.; Selector Switch
1999	Oldsmobile	LSS				N/A	Selector Switch
1999	Oldsmobile	LSS				N/A	Prior to purchase, ensure compatibility with vehicle's make, model, and year for HVAC Blower Control Switch.; Selector Switch
1998	Oldsmobile	88				N/A	Selector Switch
1998	Oldsmobile	88				N/A	Prior to purchase, ensure compatibility with vehicle's make, model, and year for HVAC Blower Control Switch.; Selector Switch
1998	Oldsmobile	LSS				N/A	Selector Switch
1998	Oldsmobile	LSS				N/A	Prior to purchase, ensure compatibility with vehicle's make, model, and year for HVAC Blower Control Switch.; Selector Switch
1998	Oldsmobile	Regency				N/A	Selector Switch
1998	Oldsmobile	Regency				N/A	Prior to purchase, ensure compatibility with vehicle's make, model, and year for HVAC Blower Control Switch.; Selector Switch
1997	Oldsmobile	88				N/A	Selector Switch
1997	Oldsmobile	88				N/A	Prior to purchase, ensure compatibility with vehicle's make, model, and year for HVAC Blower Control Switch.; Selector Switch
1997	Oldsmobile	LSS				N/A	Selector Switch
1997	Oldsmobile	LSS				N/A	Prior to purchase, ensure compatibility with vehicle's make, model, and year for HVAC Blower Control Switch.; Selector Switch
1997	Oldsmobile	Regency				N/A	Selector Switch
1997	Oldsmobile	Regency				N/A	Prior to purchase, ensure compatibility with vehicle's make, model, and year for HVAC Blower Control Switch.; Selector Switch
1996	Oldsmobile	88				N/A	Selector Switch
1996	Oldsmobile	88				N/A	Prior to purchase, ensure compatibility with vehicle's make, model, and year for HVAC Blower Control Switch.; Selector Switch
1996	Oldsmobile	98				N/A	Selector Switch
1996	Oldsmobile	98				N/A	Prior to purchase, ensure compatibility with vehicle's make, model, and year for HVAC Blower Control Switch.; Selector Switch
1996	Oldsmobile	LSS				N/A	Selector Switch
1996	Oldsmobile	LSS				N/A	Prior to purchase, ensure compatibility with vehicle's make, model, and year for HVAC Blower Control Switch.; Selector Switch
1995	Oldsmobile	88				N/A	Selector Switch
1995	Oldsmobile	88				N/A	Prior to purchase, ensure compatibility with vehicle's make, model, and year for HVAC Blower Control Switch.; Selector Switch
1995	Oldsmobile	98				N/A	Selector Switch
1995	Oldsmobile	98				N/A	Prior to purchase, ensure compatibility with vehicle's make, model, and year for HVAC Blower Control Switch.; Selector Switch
1994	Oldsmobile	88				N/A	Selector Switch
1994	Oldsmobile	88				N/A	Prior to purchase, ensure compatibility with vehicle's make, model, and year for HVAC Blower Control Switch.; Selector Switch
1994	Oldsmobile	98				N/A	Selector Switch
1994	Oldsmobile	98				N/A	Prior to purchase, ensure compatibility with vehicle's make, model, and year for HVAC Blower Control Switch.; Selector Switch
1993	Buick	Roadmaster	Sedan	5.7L	V8	N/A	Selector Switch
1993	Buick	Roadmaster	Sedan	5.7L	V8	N/A	Prior to purchase, ensure compatibility with vehicle's make, model, and year for HVAC Blower Control Switch.; Selector Switch
1993	Chevrolet	Caprice				N/A	Selector Switch
1993	Chevrolet	Caprice				N/A	Prior to purchase, ensure compatibility with vehicle's make, model, and year for HVAC Blower Control Switch.; Selector Switch
1993	Chevrolet	Commercial Chassis				N/A	Selector Switch
1993	Chevrolet	Commercial Chassis				N/A	Prior to purchase, ensure compatibility with vehicle's make, model, and year for HVAC Blower Control Switch.; Selector Switch
1992	Buick	Roadmaster	Sedan	5.7L	V8	N/A	Selector Switch
1992	Buick	Roadmaster	Sedan	5.7L	V8	N/A	Prior to purchase, ensure compatibility with vehicle's make, model, and year for HVAC Blower Control Switch.; Selector Switch
1992	Chevrolet	Caprice				N/A	Selector Switch
1992	Chevrolet	Caprice				N/A	Prior to purchase, ensure compatibility with vehicle's make, model, and year for HVAC Blower Control Switch.; Selector Switch
1992	Chevrolet	Commercial Chassis				N/A	Selector Switch
1992	Chevrolet	Commercial Chassis				N/A	Prior to purchase, ensure compatibility with vehicle's make, model, and year for HVAC Blower Control Switch.; Selector Switch
1992	Oldsmobile	Custom Cruiser				N/A	Selector Switch
1992	Oldsmobile	Custom Cruiser				N/A	Prior to purchase, ensure compatibility with vehicle's make, model, and year for HVAC Blower Control Switch.; Selector Switch
1991	Chevrolet	Caprice				N/A	Selector Switch
1991	Chevrolet	Caprice				N/A	Prior to purchase, ensure compatibility with vehicle's make, model, and year for HVAC Blower Control Switch.; Selector Switch
1991	Chevrolet	Commercial Chassis				N/A	Selector Switch
1991	Chevrolet	Commercial Chassis				N/A	Prior to purchase, ensure compatibility with vehicle's make, model, and year for HVAC Blower Control Switch.; Selector Switch
1991	Oldsmobile	Custom Cruiser				N/A	Selector Switch
1991	Oldsmobile	Custom Cruiser				N/A	Prior to purchase, ensure compatibility with vehicle's make, model, and year for HVAC Blower Control Switch.; Selector Switch
1991	Pontiac	Bonneville				N/A	Blower Motor Switch; Selector Switch
1990	Pontiac	Bonneville				N/A	Blower Motor Switch; Selector Switch
1989	Pontiac	Bonneville				N/A	Blower Motor Switch; Selector Switch

* 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:

10284149K80813MS508197

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