Engine Knock sensor.
To replace original sensor which has a black wire with a white stripe.
Fits the following Jaguar models.
XK8/XKR (X100) 4.2 V8 models - All Years (2003-06)
S-type (X200) 2.5 + 3.0 V6 Petrol - Years 2002-05 (VIN M45255 to N52047)
S-type (X200) 4.2 V8 models (L/H Bank) - Years 2002-05 (to VIN N52047)
XJ (X350) 3.0 V6 Petrol - Years 2003-05 (to VIN G49700)
XJ/XJR (X350) 4.2 V8 models (L/H Bank) - Years 2003-05 (to VIN G49700)
X-type (X400) All Petrol models - All Years (2001-10)
Part Number - AJ85676*