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Four Seasons 37891 Engine Coolant Temperature Sensor
| Brand | Four Seasons 37891 |
|---|---|
| Connector Gender | Female |
| Connector Shape | Rectangular |
| Description | Coolant Temp Sensor |
| Meets / Exceeds OEM? | YES |
| Number of Terminals | 2 |
| Style | Coolant Temp Sensor |
| Type | Coolant Temp Sensor |
| Product line | Coolant Temp Sensor |
| Fits | Jaguar · 51 vehicles |
OE direct replacement. Meets or exceeds OEM requirements for dependable cooling-system sensing.
Rectangular connector. Female 2-terminal design for a secure electrical connection.
Coolant temp sensor. Monitors engine coolant temperature for accurate system control.
Cross-references Four Seasons 37891, URO AJ810031 and A14241 for the same application. See all 6.
Coolant Temperature Sensor for Jaguar Cooling Systems
The Four Seasons 37891 coolant temp sensor provides direct temperature feedback for engine management and gauge operation. It is a female, rectangular, 2-terminal sensor that meets or exceeds OEM requirements for the listed Jaguar applications.
Key Features
- Four Seasons Coolant Temp Sensor, part number 37891
- Female connector with rectangular shape
- 2-terminal design for coolant temperature signal input
- Meets or exceeds OEM specifications
- Direct-fit replacement for select Jaguar cooling system applications
Application Details
This Four Seasons coolant temp sensor is used in Jaguar S-Type, X-Type, XK8, XKR, Vanden Plas, XJ8, and XJR applications across model years 1997 through 2008. It is a direct replacement for vehicles that use the specified coolant temperature sensor configuration, including 18mm thread applications where noted. Part number 37891 is also referenced by A14241 and AJ810031 for the same application.
Compatible With 2000-2008 Jaguar S-Type, N/A. Compatible With 2002-2008 Jaguar X-Type, N/A; 18mm Thread. Compatible With 2003-2006 Jaguar XK8, N/A; 18mm Thread. Compatible With 1997-1999 Jaguar XK8, N/A; 18mm Thread. Compatible With 2003-2006 Jaguar XKR, N/A; 18mm Thread. Compatible With 1998-2003 Jaguar Vanden Plas, N/A; 18mm Thread. Compatible With 1998-2003 Jaguar XJ8, N/A; 18mm Thread. Compatible With 1998-2003 Jaguar XJR, N/A; 18mm Thread. Compatible With 2000-2002 Jaguar XK8, N/A. Compatible With 2000-2002 Jaguar XKR, N/A.
What It Helps Address
- Incorrect coolant temperature readings
- Hard starting or rough running related to temperature input
- Illuminated engine warning lights tied to sensor faults
- Cooling fan control issues caused by inaccurate temperature data
- Driveability problems from a failing engine coolant temperature sensor
Installation Notes and Tips
Verify connector style, terminal count, and thread specification before installation. Confirm the sensor location on the engine cooling circuit and compare the old unit to the replacement before fitting. Clear any stored diagnostic trouble codes after installation and recheck coolant level and system operation.
Quality Assurance
Four Seasons lists this coolant temp sensor as meeting or exceeding OEM requirements for the specified applications. The part is built for direct replacement use in the listed Jaguar models.
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2008 | Jaguar | S-Type | 3.0L | V6 | N/A | Coolant Temp Sensor |
| 2008 | Jaguar | X-Type | — | — | N/A | 18mm Thread; Coolant Temp Sensor |
| 2007 | Jaguar | S-Type | 3.0L | V6 | N/A | Coolant Temp Sensor |
| 2007 | Jaguar | X-Type | — | — | N/A | 18mm Thread; Coolant Temp Sensor |
| 2006 | Jaguar | S-Type | 3.0L | V6 | N/A | Coolant Temp Sensor |
| 2006 | Jaguar | X-Type | — | — | N/A | 18mm Thread; Coolant Temp Sensor |
| 2006 | Jaguar | XK8 | — | — | N/A | 18mm Thread; Coolant Temp Sensor |
| 2006 | Jaguar | XKR | — | — | N/A | 18mm Thread; Coolant Temp Sensor |
| 2005 | Jaguar | S-Type | 3.0L | V6 | N/A | Coolant Temp Sensor |
| 2005 | Jaguar | X-Type | — | — | N/A | 18mm Thread; Coolant Temp Sensor |
| 2005 | Jaguar | XK8 | — | — | N/A | 18mm Thread; Coolant Temp Sensor |
| 2005 | Jaguar | XKR | — | — | N/A | 18mm Thread; Coolant Temp Sensor |
| 2004 | Jaguar | S-Type | — | — | N/A | Coolant Temp Sensor |
| 2004 | Jaguar | X-Type | — | — | N/A | 18mm Thread; Coolant Temp Sensor |
| 2004 | Jaguar | XK8 | — | — | N/A | 18mm Thread; Coolant Temp Sensor |
| 2004 | Jaguar | XKR | — | — | N/A | 18mm Thread; Coolant Temp Sensor |
| 2003 | Jaguar | S-Type | — | — | N/A | Coolant Temp Sensor |
| 2003 | Jaguar | Vanden Plas | — | — | N/A | 18mm Thread; Coolant Temp Sensor |
| 2003 | Jaguar | X-Type | — | — | N/A | 18mm Thread; Coolant Temp Sensor |
| 2003 | Jaguar | XJ8 | — | — | N/A | 18mm Thread; Coolant Temp Sensor |
| 2003 | Jaguar | XJR | — | — | N/A | 18mm Thread; Coolant Temp Sensor |
| 2003 | Jaguar | XK8 | — | — | N/A | 18mm Thread; Coolant Temp Sensor |
| 2003 | Jaguar | XKR | — | — | N/A | 18mm Thread; Coolant Temp Sensor |
| 2002 | Jaguar | S-Type | — | — | N/A | Coolant Temp Sensor |
| 2002 | Jaguar | Vanden Plas | — | — | N/A | 18mm Thread; Coolant Temp Sensor |
| 2002 | Jaguar | X-Type | — | — | N/A | 18mm Thread; Coolant Temp Sensor |
| 2002 | Jaguar | XJ8 | — | — | N/A | 18mm Thread; Coolant Temp Sensor |
| 2002 | Jaguar | XJR | — | — | N/A | 18mm Thread; Coolant Temp Sensor |
| 2002 | Jaguar | XK8 | — | — | N/A | Coolant Temp Sensor |
| 2002 | Jaguar | XKR | — | — | N/A | Coolant Temp Sensor |
| 2001 | Jaguar | S-Type | — | — | N/A | Coolant Temp Sensor |
| 2001 | Jaguar | Vanden Plas | — | — | N/A | 18mm Thread; Coolant Temp Sensor |
| 2001 | Jaguar | XJ8 | — | — | N/A | 18mm Thread; Coolant Temp Sensor |
| 2001 | Jaguar | XJR | — | — | N/A | 18mm Thread; Coolant Temp Sensor |
| 2001 | Jaguar | XK8 | — | — | N/A | Coolant Temp Sensor |
| 2001 | Jaguar | XKR | — | — | N/A | Coolant Temp Sensor |
| 2000 | Jaguar | S-Type | — | — | N/A | Coolant Temp Sensor |
| 2000 | Jaguar | Vanden Plas | — | — | N/A | 18mm Thread; Coolant Temp Sensor |
| 2000 | Jaguar | XJ8 | — | — | N/A | 18mm Thread; Coolant Temp Sensor |
| 2000 | Jaguar | XJR | — | — | N/A | 18mm Thread; Coolant Temp Sensor |
| 2000 | Jaguar | XK8 | — | — | N/A | Coolant Temp Sensor |
| 2000 | Jaguar | XKR | — | — | N/A | Coolant Temp Sensor |
| 1999 | Jaguar | Vanden Plas | — | — | N/A | 18mm Thread; Coolant Temp Sensor |
| 1999 | Jaguar | XJ8 | — | — | N/A | 18mm Thread; Coolant Temp Sensor |
| 1999 | Jaguar | XJR | — | — | N/A | 18mm Thread; Coolant Temp Sensor |
| 1999 | Jaguar | XK8 | — | — | N/A | 18mm Thread; Coolant Temp Sensor |
| 1998 | Jaguar | Vanden Plas | — | — | N/A | 18mm Thread; Coolant Temp Sensor |
| 1998 | Jaguar | XJ8 | — | — | N/A | 18mm Thread; Coolant Temp Sensor |
| 1998 | Jaguar | XJR | — | — | N/A | 18mm Thread; Coolant Temp Sensor |
| 1998 | Jaguar | XK8 | — | — | N/A | 18mm Thread; Coolant Temp Sensor |
| 1997 | Jaguar | XK8 | — | — | N/A | 18mm Thread; Coolant Temp Sensor |
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