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Four Seasons 36666 A/C Condenser Fan Switch
| Brand | Four Seasons 36666 |
|---|---|
| Connector Color | Green |
| Connector Gender | Male |
| Description | Switch-Pressure /System Mount |
| Fan Open/Closed | Open |
| Fitting Thread Size | 3/8 in. x 24 |
| Harness Connector | 37227 |
| Item Included A Desc | 24606 |
| Item Included A Qty. | 1 |
| Material | Plastic / Metal |
| Meets / Exceeds OEM? | YES |
| Mnt Sys Loc | System Mounted |
| Operate Psi Med Off | 175 |
| Operate Psi Med On | 220 |
| Style | Pressure |
| Terminal Quantity | 2 |
| Type | Condenser Fan |
| Product line | Pressure Switch |
| Fits | Buick, Oldsmobile, and Pontiac · 14 vehicles |
Pressure switch. System-mounted design helps control condenser fan operation.
OE direct replacement. Meets or exceeds OEM requirements for a confident fit.
Plastic and metal construction. Built for dependable electrical and pressure control.
Cross-references Four Seasons 36666, Hayden 5053 and UAC SW1134C for the same application. See all 17.
Will it fit your vehicle?
Free return shipping if it doesn't fit.
Four Seasons 36666 A/C Condenser Fan Switch
The Four Seasons Pressure Switch 36666 is a system-mounted A/C condenser fan switch built for pressure-based fan control in select GM applications. It uses a 2-terminal male connector with a green connector body and a 3/8 in. x 24 fitting thread size for a direct-fit service replacement.
Four Seasons Pressure Switch line components are built for HVAC service work where accurate pressure response matters. This condenser fan switch operates at 175 psi off and 220 psi on, and it meets or exceeds OEM requirements for the listed applications.
Key Features
- Part number 36666 from Four Seasons Pressure Switch
- A/C condenser fan switch with pressure-based operation
- System-mounted design with open fan/open circuit function
- 2-terminal male connector with green connector color
- 3/8 in. x 24 fitting thread size
- Plastic and metal construction
- Meets or exceeds OEM specifications
Detailed Description
This Four Seasons 36666 pressure switch is used in HVAC condenser fan control circuits to monitor system pressure and trigger fan operation at the specified thresholds. It is listed for 1991-1993 Buick Park Avenue, 1992-1993 Buick LeSabre, 1991-1992 Oldsmobile Custom Cruiser, 1991-1993 Oldsmobile 98, 1992-1993 Oldsmobile 88, and 1992-1993 Pontiac Bonneville. This part cross-references Hayden 5053 for the same application.
For buyers searching for a 1992 Buick LeSabre A/C condenser fan switch, a 1991 Oldsmobile 98 pressure switch, or a 1993 Pontiac Bonneville HVAC pressure switch, Four Seasons 36666 provides the specified connector style and pressure range for the listed vehicles.
What It Helps Solve
- Condenser fan not cycling on at the correct pressure
- Incorrect A/C pressure switch response
- Loss of condenser fan control in the HVAC circuit
- Pressure-related A/C performance issues on listed GM vehicles
Installation Notes and Tips
Verify the connector style, thread size, and system-mounted location before installation. Confirm the vehicle uses a hi-side mounted pressure switch and compare the existing switch to the 3/8 in. x 24 fitting specification. After installation, check A/C system operation and confirm the condenser fan responds at the specified pressure thresholds.
Quality Assurance
Four Seasons 36666 is built to meet or exceed OEM requirements for the listed fitments, supporting accurate replacement in HVAC service applications.
| Year | Make | Model | Body Type | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|---|
| 1993 | Buick | LeSabre | Sedan | 3.8L | V6 | N/A | Hi-Side Mounted; Pressure Switch |
| 1993 | Buick | Park Avenue | — | — | — | N/A | Hi-Side Mounted; Pressure Switch |
| 1993 | Oldsmobile | 88 | — | — | — | N/A | Hi-Side Mounted; Pressure Switch |
| 1993 | Oldsmobile | 98 | — | — | — | N/A | Hi-Side Mounted; Pressure Switch |
| 1993 | Pontiac | Bonneville | — | — | — | N/A | Hi-Side Mounted; Pressure Switch |
| 1992 | Buick | LeSabre | Sedan | 3.8L | V6 | N/A | Hi-Side Mounted; Pressure Switch |
| 1992 | Buick | Park Avenue | — | — | — | N/A | Hi-Side Mounted; Pressure Switch |
| 1992 | Oldsmobile | 88 | — | — | — | N/A | Hi-Side Mounted; Pressure Switch |
| 1992 | Oldsmobile | 98 | — | — | — | N/A | Hi-Side Mounted; Pressure Switch |
| 1992 | Oldsmobile | Custom Cruiser | — | — | — | N/A | Hi-Side Mounted; Pressure Switch |
| 1992 | Pontiac | Bonneville | — | — | — | N/A | Hi-Side Mounted; Pressure Switch |
| 1991 | Buick | Park Avenue | — | — | — | N/A | Hi-Side Mounted; Pressure Switch |
| 1991 | Oldsmobile | 98 | — | — | — | N/A | Hi-Side Mounted; Pressure Switch |
| 1991 | Oldsmobile | Custom Cruiser | — | — | — | N/A | Hi-Side Mounted; Pressure Switch |
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