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Pioneer CablesPart #: PE-125-B
Four Seasons 37581 HVAC Blower Control Switch
66 vehicles fit this part
Select your vehicle to confirm fitment
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Selector Switch
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Not what you need? See all HVAC Blower Control Switch options
HVAC Blower Control Switch for GM Applications
Four Seasons 37581 is a selector-style HVAC blower control switch built for vehicles with manual climate control. It uses a male square connector, 4 terminals, and is listed as an OE-style replacement that meets or exceeds OEM requirements.
Use this Four Seasons Selector Switch when you need direct blower speed control for select Chevrolet, Pontiac, and Oldsmobile applications. The 37581 part number is commonly searched for Chevrolet Cobalt, Pontiac G5, and Pontiac Pursuit HVAC repair work.
Key Features
- Brand: Four Seasons Selector Switch
- Part number: 37581
- HVAC blower control switch / selector switch design
- Male connector with square shape
- 4-terminal electrical connection
- Meets or exceeds OEM specifications
- Direct-fit style replacement for manual HVAC systems
Product Details
Four Seasons 37581 is an HVAC blower control switch used to select fan speeds in manual air conditioning systems. It is identified as a blower-type selector switch with a male, square connector and 4 terminals. This part is listed for a wide range of GM vehicles, including 2005-2010 Chevrolet Cobalt, 2007-2009 Pontiac G5, 2005-2006 Pontiac Pursuit, and select Chevrolet Corvette, Impala, Monte Carlo, Oldsmobile Silhouette, Pontiac Montana, Grand Prix, and Trans Sport applications.
This part cross-references ACD155691 and SW1465 for the same application.
What It Helps Fix
- Blower fan speeds that do not change correctly
- Intermittent HVAC fan operation
- No response from the blower speed selector
- Worn or damaged blower control switch contacts
- Manual AC control issues in select GM vehicles
Installation Notes
- Verify connector style, terminal count, and vehicle year before ordering.
- Confirm manual AC configuration where noted in the fitment data.
- Some Corvette applications have specific ATC-related exclusions; review the notes carefully.
- Use the vehicle’s original wiring and dash configuration as the reference for replacement.
Quality Assurance
Four Seasons lists this selector switch as meeting or exceeding OEM requirements, making it a technical replacement choice for HVAC repair on select Chevrolet, Pontiac, and Oldsmobile models.
This part fits 66 vehicles. Search below:
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 2010 | Chevrolet | Cobalt | N/A | Black and Aluminium; 7 Term.; Switch Only; Selector Switch |
| 2010 | Chevrolet | Cobalt | N/A | Blower Motor Switch; Black and Aluminium; 7 Term.; Switch Only; Selector Switch |
| 2009 | Chevrolet | Cobalt | N/A | Black and Aluminium; 7 Term.; Switch Only; Selector Switch |
| 2009 | Chevrolet | Cobalt | N/A | Blower Motor Switch; Black and Aluminium; 7 Term.; Switch Only; Selector Switch |
| 2009 | Pontiac | G5 | N/A | Black and Aluminium; 7 Term.; Switch Only; Selector Switch |
| 2009 | Pontiac | G5 | N/A | Blower Motor Switch; Black and Aluminium; 7 Term.; Switch Only; Selector Switch |
| 2008 | Chevrolet | Cobalt | N/A | Black and Aluminium; 7 Term.; Switch Only; Selector Switch |
| 2008 | Chevrolet | Cobalt | N/A | Blower Motor Switch; Black and Aluminium; 7 Term.; Switch Only; Selector Switch |
| 2008 | Pontiac | G5 | N/A | Black and Aluminium; 7 Term.; Switch Only; Selector Switch |
| 2008 | Pontiac | G5 | N/A | Blower Motor Switch; Black and Aluminium; 7 Term.; Switch Only; Selector Switch |
| 2007 | Chevrolet | Cobalt | N/A | Black and Aluminium; 7 Term.; Switch Only; Selector Switch |
| 2007 | Chevrolet | Cobalt | N/A | Blower Motor Switch; Black and Aluminium; 7 Term.; Switch Only; Selector Switch |
| 2007 | Pontiac | G5 | N/A | Black and Aluminium; 7 Term.; Switch Only; Selector Switch |
| 2007 | Pontiac | G5 | N/A | Blower Motor Switch; Black and Aluminium; 7 Term.; Switch Only; Selector Switch |
| 2006 | Chevrolet | Cobalt | N/A | Black and Aluminium; 7 Term.; Switch Only; Selector Switch |
| 2006 | Chevrolet | Cobalt | N/A | Blower Motor Switch; Black and Aluminium; 7 Term.; Switch Only; Selector Switch |
| 2006 | Pontiac | Pursuit | N/A | Black and Aluminium; 7 Term.; Switch Only; Selector Switch |
| 2006 | Pontiac | Pursuit | N/A | Blower Motor Switch; Black and Aluminium; 7 Term.; Switch Only; Selector Switch |
| 2005 | Chevrolet | Cobalt | N/A | Black and Aluminium; 7 Term.; Switch Only; Selector Switch |
| 2005 | Chevrolet | Cobalt | N/A | Blower Motor Switch; Black and Aluminium; 7 Term.; Switch Only; Selector Switch |
| 2005 | Pontiac | Pursuit | N/A | Black and Aluminium; 7 Term.; Switch Only; Selector Switch |
| 2005 | Pontiac | Pursuit | N/A | Blower Motor Switch; Black and Aluminium; 7 Term.; Switch Only; Selector Switch |
| 2003 | Chevrolet | Impala | N/A | Blower Motor Switch; Switch Only; Selector Switch |
| 2003 | Chevrolet | Impala | N/A | Switch Only; Selector Switch |
| 2003 | Chevrolet | Monte Carlo | N/A | Blower Motor Switch; Switch Only; Selector Switch |
| 2003 | Chevrolet | Monte Carlo | N/A | Switch Only; Selector Switch |
| 2002 | Chevrolet | Corvette | N/A | Selector Switch |
| 2002 | Chevrolet | Corvette | N/A | Prior to purchase, ensure compatibility with vehicle's make, model, and year for HVAC Blower Control Switch.; Selector Switch |
| 2002 | Chevrolet | Impala | N/A | Blower Motor Switch; Switch Only; Selector Switch |
| 2002 | Chevrolet | Impala | N/A | Switch Only; Selector Switch |
| 2002 | Chevrolet | Monte Carlo | N/A | Blower Motor Switch; Switch Only; Selector Switch |
| 2002 | Chevrolet | Monte Carlo | N/A | Switch Only; Selector Switch |
| 2001 | Chevrolet | Corvette | N/A | Selector Switch |
| 2001 | Chevrolet | Corvette | N/A | Prior to purchase, ensure compatibility with vehicle's make, model, and year for HVAC Blower Control Switch.; Selector Switch |
| 2001 | Chevrolet | Impala | N/A | Blower Motor Switch; Switch Only; Selector Switch |
| 2001 | Chevrolet | Impala | N/A | Switch Only; Selector Switch |
| 2001 | Chevrolet | Monte Carlo | N/A | Blower Motor Switch; Switch Only; Selector Switch |
| 2001 | Chevrolet | Monte Carlo | N/A | Switch Only; Selector Switch |
| 2000 | Chevrolet | Corvette | N/A | Selector Switch |
| 2000 | Chevrolet | Corvette | N/A | Prior to purchase, ensure compatibility with vehicle's make, model, and year for HVAC Blower Control Switch.; Selector Switch |
| 2000 | Chevrolet | Impala | N/A | Blower Motor Switch; Switch Only; Selector Switch |
| 2000 | Chevrolet | Impala | N/A | Switch Only; Selector Switch |
| 2000 | Chevrolet | Monte Carlo | N/A | Blower Motor Switch; Switch Only; Selector Switch |
| 2000 | Chevrolet | Monte Carlo | N/A | Switch Only; Selector Switch |
| 1999 | Chevrolet | Corvette | N/A | HVAC Blower Control Switch for models with manual AC.; Selector Switch |
| 1999 | Chevrolet | Corvette | N/A | Fits models with Manual AC.; Selector Switch |
| 1999 | Oldsmobile | Silhouette | N/A | Selector Switch |
| 1999 | Oldsmobile | Silhouette | N/A | Prior to purchase, ensure compatibility with vehicle's make, model, and year for HVAC Blower Control Switch.; Selector Switch |
| 1999 | Pontiac | Montana | N/A | Selector Switch |
| 1999 | Pontiac | Montana | N/A | Prior to purchase, ensure compatibility with vehicle's make, model, and year for HVAC Blower Control Switch.; Selector Switch |
| 1998 | Chevrolet | Corvette | N/A | HVAC Blower Control Switch for models with manual AC.; Selector Switch |
| 1998 | Chevrolet | Corvette | N/A | Fits models with Manual AC.; Selector Switch |
| 1998 | Oldsmobile | Silhouette | N/A | HVAC Blower Control Switch for models with manual AC.; Selector Switch |
| 1998 | Oldsmobile | Silhouette | N/A | Fits models with Manual AC.; Selector Switch |
| 1998 | Pontiac | Grand Prix | N/A | HVAC Blower Control Switch for models with manual AC.; Selector Switch |
| 1998 | Pontiac | Grand Prix | N/A | Fits models with Manual AC.; Selector Switch |
| 1998 | Pontiac | Trans Sport | N/A | Selector Switch |
| 1998 | Pontiac | Trans Sport | N/A | Prior to purchase, ensure compatibility with vehicle's make, model, and year for HVAC Blower Control Switch.; Selector Switch |
| 1997 | Chevrolet | Corvette | N/A | Blower Motor Switch; w/o ATC (Automatic Temperature Control); Selector Switch |
| 1997 | Chevrolet | Corvette | N/A | ATC relay connector incompatible with HVAC blower motor resistor harness.; Selector Switch |
| 1997 | Oldsmobile | Silhouette | N/A | Selector Switch |
| 1997 | Oldsmobile | Silhouette | N/A | Prior to purchase, ensure compatibility with vehicle's make, model, and year for HVAC Blower Control Switch.; Selector Switch |
| 1997 | Pontiac | Grand Prix | N/A | Selector Switch |
| 1997 | Pontiac | Grand Prix | N/A | Prior to purchase, ensure compatibility with vehicle's make, model, and year for HVAC Blower Control Switch.; Selector Switch |
| 1997 | Pontiac | Trans Sport | N/A | HVAC Blower Control Switch for models with manual AC.; Selector Switch |
| 1997 | Pontiac | Trans Sport | N/A | Fits models with Manual AC.; Selector Switch |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.