OE Quality
60-Day Returns

Four Seasons 20030 Engine Cooling Fan Switch
Reliable Engine Cooling Fan Switch for Chevrolet, Geo, Pontiac, and Suzuki
The Four Seasons Temperature Switch 20030 is engineered to maintain optimal engine temperature by controlling the cooling fan operation. Designed specifically for select Chevrolet Firefly, Geo Metro, Pontiac Sprint, and Suzuki Swift models, this engine cooling fan switch ensures precise temperature regulation and reliable performance.
Key Features of Four Seasons Temperature Switch 20030
- Temperature-controlled cooling fan switch with on/off activation at 203°F and 185°F
- Engine-mounted design for accurate temperature sensing
- Rectangular female connector with 2 terminals for secure electrical connection
- Male fitting with M16-1.50 thread size for proper installation
- Meets or exceeds OEM specifications for dependable operation
- Part number 20030 for easy identification and replacement
Detailed Description of the Temperature Switch 20030
This Four Seasons Temperature Switch from the Temperature Switch product line is a temperature-activated engine cooling fan switch designed to open the fan circuit at 203°F and close it at 185°F, helping to regulate engine temperature effectively. The switch features a rectangular female connector with two terminals, ensuring a reliable electrical connection. Its male fitting with an M16-1.50 thread size allows for secure mounting directly on the engine. Engine-mounted for precise temperature monitoring, this switch is compatible with Chevrolet Firefly, Geo Metro, Pontiac Sprint, and Suzuki Swift vehicles. The part number 20030 identifies this specific switch within the Four Seasons lineup, which focuses on temperature-based control components for engine cooling systems.
Common Applications and Issues Addressed
- Prevents engine overheating by activating the cooling fan at the correct temperature
- Ensures cooling fan turns off to avoid unnecessary power consumption
- Replaces faulty or worn engine cooling fan switches in compatible Chevrolet, Geo, Pontiac, and Suzuki models
- Helps maintain consistent engine temperature for improved performance and longevity
- Addresses intermittent fan operation or failure to engage issues
Installation Notes and Tips
When installing the Four Seasons Temperature Switch 20030, ensure the engine is cool before removal to avoid injury. Verify the M16-1.50 male thread size matches the mounting port on the engine. Connect the rectangular female connector securely to the vehicle’s wiring harness, confirming the two terminals are properly seated. Follow vehicle-specific service manual instructions for torque specifications and safety precautions. Proper installation ensures accurate temperature sensing and reliable fan control.
Quality Assurance and Warranty
The Four Seasons Temperature Switch 20030 meets or exceeds OEM standards, providing reliable performance and durability. Manufactured under strict quality control processes, this switch is designed to deliver consistent operation in demanding engine environments. Please refer to Four Seasons’ warranty policy for coverage details.
| Brand | Four Seasons |
|---|---|
| Part Number | 20030 |
| Position | Temperature Switch |
| Connector Shape | Rectangular |
| Terminal Quantity | 2 |
| Connector Gender | Female |
| Description | Switch-temp /engine mount |
| Fan Open/Closed | Open |
| Fitting Gender | Male |
| Fitting Thread Size | M16-1.50 |
| Meets / Exceeds OEM? | Yes |
| Mnt Sys Loc | Engine mounted |
| Style | Temperature |
| Temperature Off | 185 |
| Temperature On | 203 |
| Type | Cooling fan |
This part fits 14 vehicles. Search below:
| Year | Make | Model | Transmission | Position | Notes |
|---|---|---|---|---|---|
| 1994 | Suzuki | Swift | Automatic | N/A | Engine mounted coolant fan switch; Temperature Switch |
| 1993 | Suzuki | Swift | Automatic | N/A | Engine mounted coolant fan switch; Temperature Switch |
| 1992 | Suzuki | Swift | Automatic | N/A | Engine mounted coolant fan switch; Temperature Switch |
| 1991 | Chevrolet | Sprint | N/A | Engine mounted coolant fan switch; Temperature Switch | |
| 1991 | Geo | Metro | N/A | Engine Mounted; Mounted In Throtte Body; Temperature Switch | |
| 1991 | Pontiac | Firefly | N/A | Temperature Switch | |
| 1991 | Suzuki | Swift | N/A | Temperature Switch | |
| 1990 | Chevrolet | Sprint | N/A | Engine mounted coolant fan switch; Temperature Switch | |
| 1990 | Geo | Metro | N/A | Engine Mounted; Mounted In Throtte Body; Temperature Switch | |
| 1990 | Pontiac | Firefly | N/A | Temperature Switch | |
| 1990 | Suzuki | Swift | N/A | Engine mounted coolant fan switch; Temperature Switch | |
| 1989 | Chevrolet | Sprint | N/A | Engine mounted coolant fan switch; Temperature Switch | |
| 1989 | Pontiac | Firefly | N/A | Temperature Switch | |
| 1989 | Suzuki | Swift | Manual | N/A | Engine mounted coolant fan switch; Temperature 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:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.