HomeHVAC > SwitchesFour Seasons 37639 HVAC Blower Control Switch
Part #: 96355

Four Seasons 37639 HVAC Blower Control Switch

Selector Switch
⚙️ 97 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 37639

The Four Seasons Selector Switch 37639 is a reliable HVAC blower control switch designed for select Chevrolet, GMC, Oldsmobile, and Pontiac vehicles. This switch features a male square connector with five terminals, ensuring precise control of your vehicle's blower system.

  • Brand: Four Seasons
  • Brand Line: Selector Switch
  • Part Number: 37639
  • Type: HVAC Blower Control Switch
  • Connector Gender: Male
  • Connector Shape: Square
  • Number of Terminals: 5
  • Compatible with Chevrolet, GMC, Oldsmobile, Pontiac models

Four Seasons Selector Switch Product Line

The Selector Switch line by Four Seasons focuses on providing dependable HVAC switches that regulate blower functions effectively. The 37639 model is part of this line, offering a durable and precise blower control switch that integrates seamlessly with the vehicle’s HVAC system for consistent performance.

Detailed Product Description

This HVAC blower control switch is engineered with a male square connector and five terminals, designed to fit specific vehicle models including Chevrolet Camaro, Caprice, S10, GMC S15 Jimmy, Oldsmobile Cutlass Calais, and Pontiac Firebird among others. The switch-selector/blower type ensures accurate blower speed selection and reliable operation within the HVAC system. Its construction supports stable electrical connections, reducing the risk of HVAC blower malfunctions.

Common Applications and Issues Addressed

  • Restores blower control functionality in Chevrolet Camaro and GMC S10 Blazer
  • Resolves intermittent blower speeds in Oldsmobile Cutlass Calais and Pontiac Firebird
  • Fixes non-responsive HVAC blower switches in Chevrolet Caprice and S15 Jimmy
  • Eliminates blower switch failure symptoms such as no airflow or stuck blower speeds
  • Supports HVAC system repairs requiring a five-terminal blower control switch

Installation Notes and Tips

  • Ensure vehicle compatibility with Chevrolet, GMC, Oldsmobile, or Pontiac models listed before installation
  • Disconnect the battery before replacing the blower control switch to avoid electrical shorts
  • Verify the male square connector aligns properly with the vehicle’s wiring harness
  • Check all five terminals for secure connections to maintain proper blower function
  • Consult vehicle service manual for specific removal and installation procedures

Quality Assurance and Warranty

Four Seasons maintains strict quality control standards for the Selector Switch line, including part number 37639. This HVAC blower control switch is manufactured to meet or exceed OEM specifications for fit and function. While specific warranty details are not provided here, Four Seasons products typically come with a limited warranty covering defects in materials and workmanship.

BrandNGK
Part Number96355
PositionSelector Switch
Center Electrode Core MaterialCopper
Center Electrode Tip MaterialRuthenium
Electrical Terminal TypeNon-Removable Nut
Ground ConfigurationStandard
Ground Electrode Core MaterialNickel
Ground Electrode Quantity1
Ground Electrode Tip DesignDual Fine Electrode - High Ignitability
Hex Size5/8
Insulator Height50.50
Manufacturer Heat Range5
Part NumberLFR5AHX
Pre-Gap Size.044
Reach26.5
Resistance5000
Seat TypeFlat
Stock Number96355
Thread Diameter14.00

This part fits 97 vehicles. Search below:

YearMakeModelPositionNotes
1992ChevroletCamaroN/ASelector Switch
1992ChevroletCamaroN/APrior to purchase, ensure compatibility with vehicle's make, model, and year for HVAC Blower Control Switch.; Selector Switch
1992PontiacFirebirdN/ASelector Switch
1992PontiacFirebirdN/APrior to purchase, ensure compatibility with vehicle's make, model, and year for HVAC Blower Control Switch.; Selector Switch
1991ChevroletCamaroN/ASelector Switch
1991ChevroletCamaroN/APrior to purchase, ensure compatibility with vehicle's make, model, and year for HVAC Blower Control Switch.; Selector Switch
1991OldsmobileDelta 88N/ASelector Switch
1991OldsmobileDelta 88N/APrior to purchase, ensure compatibility with vehicle's make, model, and year for HVAC Blower Control Switch.; Selector Switch
1991PontiacFirebirdN/ASelector Switch
1991PontiacFirebirdN/APrior to purchase, ensure compatibility with vehicle's make, model, and year for HVAC Blower Control Switch.; Selector Switch
1990ChevroletCamaroN/ASelector Switch
1990ChevroletCamaroN/APrior to purchase, ensure compatibility with vehicle's make, model, and year for HVAC Blower Control Switch.; Selector Switch
1990ChevroletCapriceN/ASelector Switch
1990ChevroletCapriceN/APrior to purchase, ensure compatibility with vehicle's make, model, and year for HVAC Blower Control Switch.; Selector Switch
1990OldsmobileDelta 88N/ASelector Switch
1990OldsmobileDelta 88N/APrior to purchase, ensure compatibility with vehicle's make, model, and year for HVAC Blower Control Switch.; Selector Switch
1990PontiacFirebirdN/ASelector Switch
1990PontiacFirebirdN/APrior to purchase, ensure compatibility with vehicle's make, model, and year for HVAC Blower Control Switch.; Selector Switch
1989ChevroletCamaroN/ASelector Switch
1989ChevroletCamaroN/APrior to purchase, ensure compatibility with vehicle's make, model, and year for HVAC Blower Control Switch.; Selector Switch
1989ChevroletCapriceN/ASelector Switch
1989ChevroletCapriceN/APrior to purchase, ensure compatibility with vehicle's make, model, and year for HVAC Blower Control Switch.; Selector Switch
1989OldsmobileDelta 88N/ASelector Switch
1989OldsmobileDelta 88N/APrior to purchase, ensure compatibility with vehicle's make, model, and year for HVAC Blower Control Switch.; Selector Switch
1989PontiacFirebirdN/ASelector Switch
1989PontiacFirebirdN/APrior to purchase, ensure compatibility with vehicle's make, model, and year for HVAC Blower Control Switch.; Selector Switch
1988ChevroletCamaroN/ASelector Switch
1988ChevroletCamaroN/APrior to purchase, ensure compatibility with vehicle's make, model, and year for HVAC Blower Control Switch.; Selector Switch
1988ChevroletCapriceN/ASelector Switch
1988ChevroletCapriceN/APrior to purchase, ensure compatibility with vehicle's make, model, and year for HVAC Blower Control Switch.; Selector Switch
1988OldsmobileCutlass CalaisN/ASelector Switch
1988OldsmobileCutlass CalaisN/APrior to purchase, ensure compatibility with vehicle's make, model, and year for HVAC Blower Control Switch.; Selector Switch
1988PontiacFieroN/ASelector Switch
1988PontiacFieroN/APrior to purchase, ensure compatibility with vehicle's make, model, and year for HVAC Blower Control Switch.; Selector Switch
1988PontiacFirebirdN/ASelector Switch
1988PontiacFirebirdN/APrior to purchase, ensure compatibility with vehicle's make, model, and year for HVAC Blower Control Switch.; Selector Switch
1987ChevroletCamaroN/ASelector Switch
1987ChevroletCamaroN/APrior to purchase, ensure compatibility with vehicle's make, model, and year for HVAC Blower Control Switch.; Selector Switch
1987OldsmobileCalaisN/ASelector Switch
1987OldsmobileCalaisN/APrior to purchase, ensure compatibility with vehicle's make, model, and year for HVAC Blower Control Switch.; Selector Switch
1987PontiacFieroN/ASelector Switch
1987PontiacFieroN/APrior to purchase, ensure compatibility with vehicle's make, model, and year for HVAC Blower Control Switch.; Selector Switch
1987PontiacFirebirdN/ASelector Switch
1987PontiacFirebirdN/APrior to purchase, ensure compatibility with vehicle's make, model, and year for HVAC Blower Control Switch.; Selector Switch
1986ChevroletCamaroN/ASelector Switch
1986ChevroletCamaroN/APrior to purchase, ensure compatibility with vehicle's make, model, and year for HVAC Blower Control Switch.; Selector Switch
1986OldsmobileCalaisN/ASelector Switch
1986OldsmobileCalaisN/APrior to purchase, ensure compatibility with vehicle's make, model, and year for HVAC Blower Control Switch.; Selector Switch
1986PontiacFieroN/ASelector Switch
1986PontiacFieroN/APrior to purchase, ensure compatibility with vehicle's make, model, and year for HVAC Blower Control Switch.; Selector Switch
1986PontiacFirebirdN/ASelector Switch
1986PontiacFirebirdN/APrior to purchase, ensure compatibility with vehicle's make, model, and year for HVAC Blower Control Switch.; Selector Switch
1985ChevroletCamaroN/ASelector Switch
1985ChevroletCamaroN/APrior to purchase, ensure compatibility with vehicle's make, model, and year for HVAC Blower Control Switch.; Selector Switch
1985ChevroletCitation IIN/ASelector Switch
1985ChevroletCitation IIN/APrior to purchase, ensure compatibility with vehicle's make, model, and year for HVAC Blower Control Switch.; Selector Switch
1985ChevroletS10N/ASelector Switch
1985ChevroletS10N/APrior to purchase, ensure compatibility with vehicle's make, model, and year for HVAC Blower Control Switch.; Selector Switch
1985ChevroletS10 BlazerN/ASelector Switch
1985ChevroletS10 BlazerN/APrior to purchase, ensure compatibility with vehicle's make, model, and year for HVAC Blower Control Switch.; Selector Switch
1985GMCS15N/ASelector Switch
1985GMCS15N/APrior to purchase, ensure compatibility with vehicle's make, model, and year for HVAC Blower Control Switch.; Selector Switch
1985GMCS15 JimmyN/ABlower Motor Switch; Selector Switch
1985OldsmobileCalaisN/ASelector Switch
1985OldsmobileCalaisN/APrior to purchase, ensure compatibility with vehicle's make, model, and year for HVAC Blower Control Switch.; Selector Switch
1985PontiacFirebirdN/ASelector Switch
1985PontiacFirebirdN/APrior to purchase, ensure compatibility with vehicle's make, model, and year for HVAC Blower Control Switch.; Selector Switch
1984ChevroletCamaroN/ASelector Switch
1984ChevroletCamaroN/APrior to purchase, ensure compatibility with vehicle's make, model, and year for HVAC Blower Control Switch.; Selector Switch
1984ChevroletS10N/ASelector Switch
1984ChevroletS10N/APrior to purchase, ensure compatibility with vehicle's make, model, and year for HVAC Blower Control Switch.; Selector Switch
1984ChevroletS10 BlazerN/ASelector Switch
1984ChevroletS10 BlazerN/APrior to purchase, ensure compatibility with vehicle's make, model, and year for HVAC Blower Control Switch.; Selector Switch
1984GMCS15N/ASelector Switch
1984GMCS15N/APrior to purchase, ensure compatibility with vehicle's make, model, and year for HVAC Blower Control Switch.; Selector Switch
1984GMCS15 JimmyN/ABlower Motor Switch; Selector Switch
1984PontiacFirebirdN/ASelector Switch
1984PontiacFirebirdN/APrior to purchase, ensure compatibility with vehicle's make, model, and year for HVAC Blower Control Switch.; Selector Switch
1983ChevroletCamaroN/ASelector Switch
1983ChevroletCamaroN/APrior to purchase, ensure compatibility with vehicle's make, model, and year for HVAC Blower Control Switch.; Selector Switch
1983ChevroletS10N/ASelector Switch
1983ChevroletS10N/APrior to purchase, ensure compatibility with vehicle's make, model, and year for HVAC Blower Control Switch.; Selector Switch
1983ChevroletS10 BlazerN/ASelector Switch
1983ChevroletS10 BlazerN/APrior to purchase, ensure compatibility with vehicle's make, model, and year for HVAC Blower Control Switch.; Selector Switch
1983GMCS15N/ASelector Switch
1983GMCS15N/APrior to purchase, ensure compatibility with vehicle's make, model, and year for HVAC Blower Control Switch.; Selector Switch
1983GMCS15 JimmyN/ABlower Motor Switch; Selector Switch
1983PontiacFirebirdN/ASelector Switch
1983PontiacFirebirdN/APrior to purchase, ensure compatibility with vehicle's make, model, and year for HVAC Blower Control Switch.; Selector Switch
1982ChevroletCamaroN/ASelector Switch
1982ChevroletCamaroN/APrior to purchase, ensure compatibility with vehicle's make, model, and year for HVAC Blower Control Switch.; Selector Switch
1982ChevroletS10N/ASelector Switch
1982ChevroletS10N/APrior to purchase, ensure compatibility with vehicle's make, model, and year for HVAC Blower Control Switch.; Selector Switch
1982GMCS15N/ASelector Switch
1982GMCS15N/APrior to purchase, ensure compatibility with vehicle's make, model, and year for HVAC Blower Control Switch.; Selector Switch
1982PontiacFirebirdN/ASelector Switch
1982PontiacFirebirdN/APrior 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.

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

96355

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