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NTK
Direct Fit 4-Wire A/F SensorNTK 25631 Air / Fuel Ratio Sensor - Upstream Left or Upstream Right
| Brand | NTK 25631 |
|---|---|
| Position | Upstream Right and Upstream Left |
| Wiring Harness Length | 17.8 |
| Sensor Type | Heated |
| Thread Length | 0.38 |
| Universal Or Specific Fit | Specific |
| Wire Quantity | 4 |
| Thread Diameter | 18.000 |
| Mounting Bracket Included | No |
| Product line | Direct Fit 4-Wire A/F Sensor |
| Fits | Jaguar · 60 vehicles |
Direct-fit design. Specific-fit replacement for straightforward sensor service.
Heated 4-wire sensor. Helps the sensor reach operating temperature quickly.
OE-focused engineering. Built and tested to meet or exceed OE specifications.
Cross-references Bosch 15627, Bosch 15846 and Delphi ES10939 for the same application. See all 10.
$266.07Free shipping
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Not what you need? See all Air / Fuel Ratio Sensor options
Direct-Fit Air/Fuel Sensor
The NTK 25631 is a direct-fit air/fuel ratio sensor built for specific applications and engineered for OE-style performance. It uses a heated 4-wire design and is specified for threaded installation with a 17.8 wiring harness length.
Compatible with Jaguar X-Type, S-Type, Super V8, Vanden Plas, XJ8, XJR, XK8, and XKR applications, this sensor supports accurate air/fuel monitoring in upstream positions. The NTK 25631 is part of the Direct Fit 4-Wire A/F Sensor line, which focuses on application-specific replacement and consistent sensor response.
- Heated sensor design for faster operating readiness
- Specific-fit construction for direct replacement applications
- 4-wire configuration for air/fuel ratio sensing
- 18.000 thread diameter with 0.38 thread length
- NTK OE-focused sensor engineering and manufacturing
Fitment Details
Fits 2002-2008 Jaguar X-Type, upstream right and upstream left.
Fits 2003-2005 Jaguar S-Type, upstream right and upstream left.
Fits 2005 Jaguar Super V8, upstream right and upstream left.
Fits 2004-2005 Jaguar Vanden Plas, upstream right and upstream left.
Fits 2004-2005 Jaguar XJ8, upstream right and upstream left.
Fits 2004-2005 Jaguar XJR, upstream right and upstream left.
Fits 2003-2005 Jaguar XK8, upstream right and upstream left.
Fits 2003-2005 Jaguar XKR, upstream right and upstream left.
This part cross-references Bosch (e.g., 15627, 15846) for the same application.
Installation Notes
Verify the connector, thread size, and harness length before installation. Match the sensor position and application notes to the vehicle service information for correct placement. The mounting bracket is not included.
Quality Assurance
NTK is part of the NGK family of products and is a major original equipment oxygen sensor supplier. This sensor is manufactured and tested to meet or exceed OE specifications for fit, form, and function.
This part fits 60 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2008 | Jaguar | X-Type | 3.0L | V6 | Upstream Right | OE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor |
| 2008 | Jaguar | X-Type | 3.0L | V6 | Upstream Left | Compatible with downstream oxygen sensor designed to meet OE specifications.; Direct Fit 4-Wire A/F Sensor |
| 2007 | Jaguar | X-Type | 3.0L | V6 | Upstream Right | OE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor |
| 2007 | Jaguar | X-Type | 3.0L | V6 | Upstream Left | Compatible with downstream oxygen sensor designed to meet OE specifications.; Direct Fit 4-Wire A/F Sensor |
| 2006 | Jaguar | X-Type | 3.0L | V6 | Upstream Right | OE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor |
| 2006 | Jaguar | X-Type | 3.0L | V6 | Upstream Left | Compatible with downstream oxygen sensor designed to meet OE specifications.; Direct Fit 4-Wire A/F Sensor |
| 2005 | Jaguar | S-Type | 4.2L | V8 | Upstream Right | OE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor |
| 2005 | Jaguar | S-Type | 4.2L | V8 | Upstream Left | Compatible with downstream oxygen sensor designed to meet OE specifications.; Direct Fit 4-Wire A/F Sensor |
| 2005 | Jaguar | S-Type | 3.0L | V6 | Upstream Right | Equivalent OE design oxygen sensor; Direct Fit 4-Wire A/F Sensor |
| 2005 | Jaguar | S-Type | 3.0L | V6 | Upstream Left | Equivalent OE design oxygen sensor; Direct Fit 4-Wire A/F Sensor |
| 2005 | Jaguar | Super V8 | 4.2L | V8 | Upstream Right | OE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor |
| 2005 | Jaguar | Super V8 | 4.2L | V8 | Upstream Left | Compatible with downstream oxygen sensor designed to meet OE specifications.; Direct Fit 4-Wire A/F Sensor |
| 2005 | Jaguar | Vanden Plas | 4.2L | V8 | Upstream Right | OE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor |
| 2005 | Jaguar | Vanden Plas | 4.2L | V8 | Upstream Left | Compatible with downstream oxygen sensor designed to meet OE specifications.; Direct Fit 4-Wire A/F Sensor |
| 2005 | Jaguar | X-Type | 3.0L | V6 | Upstream Right | OE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor |
| 2005 | Jaguar | X-Type | 3.0L | V6 | Upstream Left | Compatible with downstream oxygen sensor designed to meet OE specifications.; Direct Fit 4-Wire A/F Sensor |
| 2005 | Jaguar | X-Type | 2.5L | V6 | Upstream Right | OE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor |
| 2005 | Jaguar | X-Type | 2.5L | V6 | Upstream Left | Compatible with downstream oxygen sensor designed to meet OE specifications.; Direct Fit 4-Wire A/F Sensor |
| 2005 | Jaguar | XJ8 | 4.2L | V8 | Upstream Right | OE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor |
| 2005 | Jaguar | XJ8 | 4.2L | V8 | Upstream Left | Compatible with downstream oxygen sensor designed to meet OE specifications.; Direct Fit 4-Wire A/F Sensor |
| 2005 | Jaguar | XJR | 4.2L | V8 | Upstream Right | OE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor |
| 2005 | Jaguar | XJR | 4.2L | V8 | Upstream Left | Compatible with downstream oxygen sensor designed to meet OE specifications.; Direct Fit 4-Wire A/F Sensor |
| 2005 | Jaguar | XK8 | 4.2L | V8 | Upstream Right | OE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor |
| 2005 | Jaguar | XK8 | 4.2L | V8 | Upstream Left | Compatible with downstream oxygen sensor designed to meet OE specifications.; Direct Fit 4-Wire A/F Sensor |
| 2005 | Jaguar | XKR | 4.2L | V8 | Upstream Right | OE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor |
| 2005 | Jaguar | XKR | 4.2L | V8 | Upstream Left | Compatible with downstream oxygen sensor designed to meet OE specifications.; Direct Fit 4-Wire A/F Sensor |
| 2004 | Jaguar | S-Type | 4.2L | V8 | Upstream Right | OE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor |
| 2004 | Jaguar | S-Type | 4.2L | V8 | Upstream Left | Compatible with downstream oxygen sensor designed to meet OE specifications.; Direct Fit 4-Wire A/F Sensor |
| 2004 | Jaguar | S-Type | 3.0L | V6 | Upstream Right | Equivalent OE design oxygen sensor; Direct Fit 4-Wire A/F Sensor |
| 2004 | Jaguar | S-Type | 3.0L | V6 | Upstream Left | Equivalent OE design oxygen sensor; Direct Fit 4-Wire A/F Sensor |
| 2004 | Jaguar | Vanden Plas | 4.2L | V8 | Upstream Right | OE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor |
| 2004 | Jaguar | Vanden Plas | 4.2L | V8 | Upstream Left | Compatible with downstream oxygen sensor designed to meet OE specifications.; Direct Fit 4-Wire A/F Sensor |
| 2004 | Jaguar | X-Type | 3.0L | V6 | Upstream Right | OE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor |
| 2004 | Jaguar | X-Type | 3.0L | V6 | Upstream Left | Compatible with downstream oxygen sensor designed to meet OE specifications.; Direct Fit 4-Wire A/F Sensor |
| 2004 | Jaguar | X-Type | 2.5L | V6 | Upstream Right | OE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor |
| 2004 | Jaguar | X-Type | 2.5L | V6 | Upstream Left | Compatible with downstream oxygen sensor designed to meet OE specifications.; Direct Fit 4-Wire A/F Sensor |
| 2004 | Jaguar | XJ8 | 4.2L | V8 | Upstream Right | OE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor |
| 2004 | Jaguar | XJ8 | 4.2L | V8 | Upstream Left | Compatible with downstream oxygen sensor designed to meet OE specifications.; Direct Fit 4-Wire A/F Sensor |
| 2004 | Jaguar | XJR | 4.2L | V8 | Upstream Right | OE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor |
| 2004 | Jaguar | XJR | 4.2L | V8 | Upstream Left | Compatible with downstream oxygen sensor designed to meet OE specifications.; Direct Fit 4-Wire A/F Sensor |
| 2004 | Jaguar | XK8 | 4.2L | V8 | Upstream Right | OE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor |
| 2004 | Jaguar | XK8 | 4.2L | V8 | Upstream Left | Compatible with downstream oxygen sensor designed to meet OE specifications.; Direct Fit 4-Wire A/F Sensor |
| 2004 | Jaguar | XKR | 4.2L | V8 | Upstream Right | OE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor |
| 2004 | Jaguar | XKR | 4.2L | V8 | Upstream Left | Compatible with downstream oxygen sensor designed to meet OE specifications.; Direct Fit 4-Wire A/F Sensor |
| 2003 | Jaguar | S-Type | 4.2L | V8 | Upstream Right | OE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor |
| 2003 | Jaguar | S-Type | 4.2L | V8 | Upstream Left | Compatible with downstream oxygen sensor designed to meet OE specifications.; Direct Fit 4-Wire A/F Sensor |
| 2003 | Jaguar | S-Type | 3.0L | V6 | Upstream Right | Equivalent OE design oxygen sensor; Direct Fit 4-Wire A/F Sensor |
| 2003 | Jaguar | S-Type | 3.0L | V6 | Upstream Left | Equivalent OE design oxygen sensor; Direct Fit 4-Wire A/F Sensor |
| 2003 | Jaguar | X-Type | 3.0L | V6 | Upstream Right | OE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor |
| 2003 | Jaguar | X-Type | 3.0L | V6 | Upstream Left | Compatible with downstream oxygen sensor designed to meet OE specifications.; Direct Fit 4-Wire A/F Sensor |
| 2003 | Jaguar | X-Type | 2.5L | V6 | Upstream Right | OE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor |
| 2003 | Jaguar | X-Type | 2.5L | V6 | Upstream Left | Compatible with downstream oxygen sensor designed to meet OE specifications.; Direct Fit 4-Wire A/F Sensor |
| 2003 | Jaguar | XK8 | 4.2L | V8 | Upstream Right | OE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor |
| 2003 | Jaguar | XK8 | 4.2L | V8 | Upstream Left | Compatible with downstream oxygen sensor designed to meet OE specifications.; Direct Fit 4-Wire A/F Sensor |
| 2003 | Jaguar | XKR | 4.2L | V8 | Upstream Right | OE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor |
| 2003 | Jaguar | XKR | 4.2L | V8 | Upstream Left | Compatible with downstream oxygen sensor designed to meet OE specifications.; Direct Fit 4-Wire A/F Sensor |
| 2002 | Jaguar | X-Type | 3.0L | V6 | Upstream Right | OE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor |
| 2002 | Jaguar | X-Type | 3.0L | V6 | Upstream Left | Compatible with downstream oxygen sensor designed to meet OE specifications.; Direct Fit 4-Wire A/F Sensor |
| 2002 | Jaguar | X-Type | 2.5L | V6 | Upstream Right | OE design oxygen sensor fits Bank 1 Sensor 1 for air/fuel ratio.; Direct Fit 4-Wire A/F Sensor |
| 2002 | Jaguar | X-Type | 2.5L | V6 | Upstream Left | Compatible with downstream oxygen sensor designed to meet OE specifications.; Direct Fit 4-Wire A/F Sensor |
| No rows match your filter. | ||||||
Directly replaces or cross-references 10 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Bosch — 15627Bosch — 15846Delphi — ES10939DENSO Auto Parts — 234-9029DENSO Auto Parts — 234-9030Genuine — C2S5180175-326775-3481213-2855C2C29250