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Four Seasons 35935 Engine Cooling Fan Switch
| Brand | Four Seasons 35935 |
|---|---|
| Connector Color | Gray |
| Connector Gender | Female |
| Connector Shape | Rectangular |
| Description | Switch-Temp /Engine Mount |
| Fan Open/Closed | Open |
| Fitting Gender | Male |
| Fitting Thread Size | 1/2" Pipe (27/32 x 14) |
| Meets / Exceeds OEM? | YES |
| Mnt Sys Loc | Engine Mounted |
| Style | Temperature |
| Temperature Off | 185 |
| Temperature On | 205 |
| Terminal Quantity | 2 |
| Type | Cooling Fan |
| Product line | Temperature Switch |
| Fits | Ford, Mercury, and Merkur · 22 vehicles |
OE direct replacement. Meets or exceeds OEM requirements for dependable cooling control.
Temperature switch. Opens at 185 and closes at 205 for precise fan operation.
Engine-mounted design. Rectangular gray connector with 2 terminals for a clean fit.
Cross-references ACI 81369, Anchor 3415 and Baldwin 20012 for the same application. See all 33.
Will it fit your vehicle?
Free return shipping if it doesn't fit.
Engine Cooling Fan Switch for Ford Tempo and Mercury Topaz
Four Seasons Temperature Switch 35935 is an engine-mounted cooling fan switch built for temperature-based fan control. It uses a gray rectangular female connector with 2 terminals and a male 1/2" pipe thread fitting for direct replacement service on select Ford and Mercury applications.
Compatible with 1984-1986 Ford Tempo and Mercury Topaz engine-mounted coolant fan switch applications, and 1987-1994 Ford Tempo and Mercury Topaz temperature switch applications, this part is specified to meet or exceed OEM requirements.
Key Features
- Four Seasons Temperature Switch line
- Part number 35935
- Engine-mounted cooling fan switch design
- Gray rectangular 2-terminal female connector
- Male fitting with 1/2" pipe thread size (27/32 x 14)
- Open fan operation
- Temperature off at 185 and on at 205
- Meets or exceeds OEM specifications
Detailed Description
Four Seasons 35935 is a temperature-style cooling fan switch used to control engine cooling fan operation based on coolant temperature. The switch opens and closes at the specified temperature range to help regulate fan engagement in Ford Tempo and Mercury Topaz models. This part cross-references FEL-PRO 35935 for the same application.
The Four Seasons Temperature Switch product line focuses on direct-fit thermal switching components for cooling system service. For buyers searching for a Ford Tempo cooling fan switch, Mercury Topaz temperature switch, or an engine-mounted coolant fan switch with a 1/2" pipe thread fitting, this part number 35935 matches the listed OE-style configuration.
What It Is Used For
- Restoring cooling fan activation at the correct engine temperature
- Replacing a failed engine-mounted coolant fan switch
- Addressing fan operation that stays on too long or does not engage
- Correcting temperature-based fan control issues on Ford Tempo and Mercury Topaz
- Resolving connector or thread-matching replacement needs for the original switch location
Installation Notes and Tips
Verify the connector shape, terminal count, fitting gender, and thread size before installation. Confirm the temperature on and off points match the original specification for your vehicle. This switch is engine mounted, so inspect the cooling system and wiring connector condition during replacement. Use the vehicle application details for 1984-1986 Ford Tempo and Mercury Topaz engine-mounted coolant fan switch service, and 1987-1994 Ford Tempo and Mercury Topaz temperature switch service.
Quality Assurance
Four Seasons lists this switch as meeting or exceeding OEM requirements, supporting OE-style fit and function for the specified applications.
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 1994 | Ford | Tempo | 2.3L | L4 | N/A | Temperature Switch |
| 1994 | Mercury | Topaz | 2.3L | L4 | N/A | Temperature Switch |
| 1993 | Ford | Tempo | 2.3L | L4 | N/A | Temperature Switch |
| 1993 | Mercury | Topaz | 2.3L | L4 | N/A | Temperature Switch |
| 1992 | Ford | Tempo | 2.3L | L4 | N/A | Temperature Switch |
| 1992 | Mercury | Topaz | 2.3L | L4 | N/A | Temperature Switch |
| 1991 | Ford | Tempo | — | — | N/A | Temperature Switch |
| 1991 | Mercury | Topaz | — | — | N/A | Temperature Switch |
| 1990 | Ford | Tempo | — | — | N/A | Temperature Switch |
| 1990 | Mercury | Topaz | — | — | N/A | Temperature Switch |
| 1989 | Ford | Tempo | — | — | N/A | Temperature Switch |
| 1989 | Mercury | Topaz | — | — | N/A | Temperature Switch |
| 1988 | Ford | Tempo | — | — | N/A | Temperature Switch |
| 1988 | Mercury | Topaz | — | — | N/A | Temperature Switch |
| 1987 | Ford | Tempo | — | — | N/A | Temperature Switch |
| 1987 | Mercury | Topaz | — | — | N/A | Temperature Switch |
| 1986 | Ford | Tempo | 2.3L | L4 | N/A | Engine mounted coolant fan switch; Temperature Switch |
| 1986 | Mercury | Topaz | 2.3L | L4 | N/A | Engine mounted coolant fan switch; Temperature Switch |
| 1985 | Ford | Tempo | 2.3L | L4 | N/A | Engine mounted coolant fan switch; Temperature Switch |
| 1985 | Mercury | Topaz | 2.3L | L4 | N/A | Engine mounted coolant fan switch; Temperature Switch |
| 1984 | Ford | Tempo | 2.3L | L4 | N/A | Engine mounted coolant fan switch; Temperature Switch |
| 1984 | Mercury | Topaz | 2.3L | L4 | N/A | Engine mounted coolant fan switch; Temperature Switch |
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