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Four Seasons 37426 Engine Cooling Fan Temperature Switch
| Brand | Four Seasons 37426 |
|---|---|
| Connector Gender | Female |
| Description | Switch-Temp /Eng/Rad Mount |
| Meets / Exceeds OEM? | YES |
| Mnt Sys Loc | Eng/Rad Mounted |
| Style | Temperature |
| Temperature Off | 185 |
| Temperature On | 194 |
| Terminal Quantity | 2 |
| Type | Cooling Fan |
| Product line | Temperature Switch |
| Fits | Chevrolet, Pontiac, and Suzuki · 11 vehicles |
OE direct replacement. Meets OEM requirements for dependable cooling fan control.
Temperature-activated switch. Turns on at 194 and off at 185 for precise operation.
Cooling fan switch. Engineered for temperature-based fan control in cooling systems.
Cross-references Four Seasons 37426, A03826 and SW587 for the same application. See all 3.
Engine Cooling Fan Temperature Switch
Four Seasons 37426 is an engine cooling fan temperature switch for temperature-controlled fan operation. It uses a 2-terminal female connector and mounts at the engine or radiator location to monitor coolant temperature and trigger fan engagement at the specified thresholds.
Compatible with Chevrolet Sprint, Pontiac Firefly, and Suzuki Forsa applications, this Four Seasons Temperature Switch line part is built for direct replacement use where OE-style temperature control is required. Four Seasons 37426 meets or exceeds OEM requirements for the listed applications.
Key Features
- Part number: 37426
- Temperature switch for engine cooling fan control
- 2-terminal female connector
- Engine/radiator mounted design
- Temperature off at 185 degrees
- Temperature on at 194 degrees
- Meets or exceeds OEM requirements
- Cross-reference part numbers: A03826, SW587
Application Details
This Four Seasons 37426 cooling fan temperature switch is used in temperature-based fan control systems on 1985-1988 Chevrolet Sprint, 1985-1988 Pontiac Firefly, and 1985-1988 Suzuki Forsa. It is also listed for 1985-1986 Chevrolet Sprint applications. If you are searching for a 1988 Chevrolet Sprint temperature switch, a 1985-1988 Pontiac Firefly cooling fan switch, or a 1985-1988 Suzuki Forsa engine cooling fan temperature switch, this part number is the relevant OE-style replacement.
What It Helps Address
- Cooling fan not switching on at the correct temperature
- Cooling fan running too late and allowing elevated engine temperature
- Intermittent fan operation caused by a worn temperature switch
- Incorrect fan cycling in engine or radiator mounted systems
- Temperature control issues on listed Chevrolet, Pontiac, and Suzuki applications
Installation Notes
Verify the connector style, terminal count, and mounting location before installation. Confirm the fan control temperature range matches the vehicle’s original specification, especially on 1985-1988 Chevrolet Sprint, Pontiac Firefly, and Suzuki Forsa applications. Use the vehicle service information to confirm the engine or radiator mounting point and electrical connection before replacing the switch.
Quality Assurance
Four Seasons 37426 is specified as meeting or exceeding OEM requirements for the listed applications. The Four Seasons Temperature Switch line is built for direct-fit replacement use in temperature-controlled cooling fan systems.
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 1988 | Chevrolet | Sprint | 1.0L | L3 | N/A | Temperature Switch |
| 1988 | Pontiac | Firefly | 1.0L | L3 | N/A | Temperature Switch |
| 1988 | Suzuki | Forsa | 1.0L | L3 | N/A | Temperature Switch |
| 1987 | Pontiac | Firefly | 1.0L | L3 | N/A | Temperature Switch |
| 1987 | Suzuki | Forsa | 1.0L | L3 | N/A | Temperature Switch |
| 1986 | Chevrolet | Sprint | — | — | N/A | Temperature Switch |
| 1986 | Pontiac | Firefly | — | — | N/A | Temperature Switch |
| 1986 | Suzuki | Forsa | — | — | N/A | Temperature Switch |
| 1985 | Chevrolet | Sprint | — | — | N/A | Temperature Switch |
| 1985 | Pontiac | Firefly | — | — | N/A | Temperature Switch |
| 1985 | Suzuki | Forsa | — | — | N/A | Temperature Switch |
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