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Four Seasons 20001 Engine Cooling Fan Switch
Reliable Engine Cooling Fan Switch for Acura Vehicles
The Four Seasons Temperature Switch 20001 is designed to maintain optimal engine temperature by controlling the cooling fan operation. Specifically engineered for Acura Legend, NSX, and RL models, this engine cooling fan switch ensures precise temperature regulation to protect your vehicle's engine.
- Compatible with Acura Legend, NSX, and RL models
- Temperature activation range: turns on at 197°F and off at 188°F
- Durable M16 x 1.50 male fitting thread for secure radiator mounting
- Equipped with a 2-terminal female connector available in black/yellow or white
- Weather Pack sealed connector for reliable performance in harsh conditions
- Meets or exceeds OEM specifications for dependable operation
About the Four Seasons Temperature Switch Product Line
The Four Seasons Temperature Switch line focuses on precision temperature control components for engine cooling systems. This product line includes switches designed to activate and deactivate cooling fans based on specific temperature thresholds, helping maintain engine efficiency and prevent overheating. The 20001 switch is part of this line, offering reliable radiator mount installation and compatibility with select Acura models.
Detailed Product Description
The Four Seasons Temperature Switch 20001 is a temperature-activated switch mounted directly on the radiator system. It features a male fitting with an M16 x 1.50 thread size, ensuring a secure and proper fit. The switch operates by turning the cooling fan on at 197°F and off at 188°F, maintaining the engine within optimal temperature limits. It includes a 2-terminal female connector, available in black/yellow or white, with Weather Pack sealing to protect against moisture and contaminants. This switch is engineered to meet or exceed original equipment manufacturer (OEM) standards, providing reliable and consistent performance in Acura Legend, NSX, and RL vehicles.
Common Applications and Issues Addressed
- Prevents engine overheating by activating cooling fans at the correct temperature
- Resolves intermittent cooling fan operation issues
- Replaces faulty or worn temperature switches causing engine temperature fluctuations
- Ensures proper radiator fan cycling to improve engine efficiency
- Maintains system mount integrity with precise fitting thread size
Installation Notes and Tips
When installing the Four Seasons Temperature Switch 20001, ensure the radiator mount location is clean and free of debris. Use the M16 x 1.50 male fitting thread to securely fasten the switch. Confirm the connector gender matches your vehicle’s wiring harness—this switch uses a female connector with two terminals. Verify the connector color (black/yellow or white) for compatibility. Proper installation will ensure accurate temperature sensing and reliable fan control.
Quality Assurance and Warranty
This Four Seasons Temperature Switch meets or exceeds OEM specifications, ensuring dependable performance and durability. The product includes a Weather Pack sealed connector to withstand environmental exposure. While specific warranty details are not provided, Four Seasons products typically come with a limited warranty covering defects in materials and workmanship.
| Brand | Four Seasons |
| Part Number | 20001 |
| Position | Temperature Switch |
| Connector Color | Black / Yellow |
| Connector Color | White |
| Connector Gender | Female |
| Description | Switch-Temp /Radiator Mount |
| Fitting Gender | Male |
| Fitting Thread | M16 x 1.50 |
| Fitting Thread Size | M16-1.50 |
| Function | temperature switch |
| Meets / Exceeds OEM? | YES |
| Mnt Sys Loc | System Mount |
| Style | Temperature |
| Temperature Off | 188 |
| Temperature On | 197 |
| Terminal Pin Qty. | 2 |
| Terminal Quantity | 2 |
| Type | Temperature |
| Weather Pack? | Yes |
This part fits 34 vehicles. Search below:
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 2005 | Acura | NSX | N/A | Temperature Switch |
| 2004 | Acura | NSX | N/A | Temperature Switch |
| 2004 | Acura | RL | N/A | Radiator Mounted Engine Cooling Fan Switch; Temperature Switch |
| 2003 | Acura | NSX | N/A | Radiator Mounted Engine Cooling Fan Switch; Temperature Switch |
| 2003 | Acura | RL | N/A | Radiator Mounted Engine Cooling Fan Switch; Temperature Switch |
| 2002 | Acura | NSX | N/A | Radiator Mounted Engine Cooling Fan Switch; Temperature Switch |
| 2002 | Acura | RL | N/A | Radiator Mounted Engine Cooling Fan Switch; Temperature Switch |
| 2001 | Acura | NSX | N/A | Radiator Mounted Engine Cooling Fan Switch; Temperature Switch |
| 2001 | Acura | RL | N/A | Radiator Mounted Engine Cooling Fan Switch; Temperature Switch |
| 2000 | Acura | NSX | N/A | Radiator Mounted Engine Cooling Fan Switch; Temperature Switch |
| 2000 | Acura | RL | N/A | Radiator Mounted Engine Cooling Fan Switch; Temperature Switch |
| 1999 | Acura | NSX | N/A | Radiator Mounted Engine Cooling Fan Switch; Temperature Switch |
| 1999 | Acura | RL | N/A | Radiator Mounted Engine Cooling Fan Switch; Temperature Switch |
| 1998 | Acura | NSX | N/A | Radiator Mounted Engine Cooling Fan Switch; Temperature Switch |
| 1998 | Acura | RL | N/A | Radiator Mounted Engine Cooling Fan Switch; Temperature Switch |
| 1997 | Acura | NSX | N/A | Radiator Mounted Engine Cooling Fan Switch; Temperature Switch |
| 1997 | Acura | RL | N/A | Radiator Mounted Engine Cooling Fan Switch; Temperature Switch |
| 1996 | Acura | NSX | N/A | Radiator Mounted Engine Cooling Fan Switch; Temperature Switch |
| 1996 | Acura | RL | N/A | Radiator Mounted Engine Cooling Fan Switch; Temperature Switch |
| 1995 | Acura | Legend | N/A | Radiator Mounted Engine Cooling Fan Switch; Temperature Switch |
| 1995 | Acura | NSX | N/A | Radiator Mounted Engine Cooling Fan Switch; Temperature Switch |
| 1994 | Acura | Legend | N/A | Radiator Mounted Engine Cooling Fan Switch; Temperature Switch |
| 1994 | Acura | NSX | N/A | Radiator Mounted Engine Cooling Fan Switch; Temperature Switch |
| 1993 | Acura | Legend | N/A | Radiator Mounted Engine Cooling Fan Switch; Temperature Switch |
| 1993 | Acura | NSX | N/A | Radiator Mounted Engine Cooling Fan Switch; Temperature Switch |
| 1992 | Acura | Legend | N/A | Radiator Mounted Engine Cooling Fan Switch; Temperature Switch |
| 1992 | Acura | NSX | N/A | Radiator Mounted Engine Cooling Fan Switch; Temperature Switch |
| 1991 | Acura | Legend | N/A | Radiator Mounted Engine Cooling Fan Switch; Temperature Switch |
| 1991 | Acura | NSX | N/A | Radiator Mounted Engine Cooling Fan Switch; Temperature Switch |
| 1990 | Acura | Legend | N/A | Radiator Mounted Engine Cooling Fan Switch; Temperature Switch |
| 1989 | Acura | Legend | N/A | Radiator Mounted Engine Cooling Fan Switch; Temperature Switch |
| 1988 | Acura | Legend | N/A | Radiator Mounted Engine Cooling Fan Switch; Temperature Switch |
| 1987 | Acura | Legend | N/A | Radiator Mounted Engine Cooling Fan Switch; Temperature Switch |
| 1986 | Acura | Legend | N/A | Radiator Mounted Engine Cooling 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.