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Four Seasons 37645 HVAC Blower Control Switch
HVAC Blower Control Switch for Saturn L-Series
Restore precise cabin fan control with this Four Seasons Selector Switch, part number 37645. This HVAC blower control switch is built with a rectangular female connector and 6 terminals for a direct-fit electrical connection on select Saturn L-Series vehicles.
Key Features
- Four Seasons Selector Switch product line
- HVAC blower control switch / blower selector switch
- Female rectangular connector for a secure plug-in fit
- 6-terminal design
- Direct replacement for select Saturn L300, L200, LW200, LW300, L100, LS, LS1, LS2, LW1, and LW2 applications
- Part number 37645 for easy identification
Product Details
The Four Seasons Selector Switch line focuses on HVAC control components that restore driver input to the heating and air conditioning system. This blower control switch is used to select fan speeds through the vehicle’s HVAC circuit, helping maintain consistent airflow control in the cabin. It is a practical replacement for Saturn models that use a 6-terminal, rectangular female connector configuration. This part number 37645 is also cross-referenced by Febi-Bilstein 37645 for the same application.
Vehicle Fitment
- Fits 2001-2005 Saturn L300, N/A, Selector Switch
- Fits 2001-2003 Saturn L200, N/A, Selector Switch
- Fits 2001-2003 Saturn LW200, N/A, Selector Switch
- Fits 2001-2003 Saturn LW300, N/A, Selector Switch
- Fits 2001-2002 Saturn L100, N/A, Selector Switch
- Fits 2000 Saturn LS, N/A, Selector Switch
- Fits 2000 Saturn LS1, N/A, Selector Switch
- Fits 2000 Saturn LS2, N/A, Selector Switch
- Fits 2000 Saturn LW1, N/A, Selector Switch
- Fits 2000 Saturn LW2, N/A, Selector Switch
Common Issues This Part Can Address
- Blower fan speeds that do not change when the selector is moved
- Intermittent HVAC fan operation
- Worn or unresponsive dashboard blower switch
- Loss of cabin airflow control in Saturn L-Series vehicles
- Electrical contact issues at the HVAC control panel
Installation Notes
Verify connector shape, terminal count, and vehicle application before installation. Confirm the part number 37645 against the original switch and compare the existing connector to the rectangular female 6-terminal layout. For Saturn L300, Saturn L200, and related L-Series models, match the HVAC control panel configuration exactly before replacement.
Quality Assurance
Four Seasons is a recognized name in HVAC replacement components, and the Selector Switch line is built for service replacement in vehicle climate control systems. Confirm fitment by year, make, model, and connector style before purchase.
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.