Direct-fit & Universal Oxygen Sensor Application List

Please select your car specification from the list below, or return to the model list, or return to the Oxygen Sensor category page.

PLEASE NOTE: All sensors listed on these page are front/pre-cat/upstream sensors unless they have "(Post Catalytic Convertor)" in their description.
( Unsure what front/pre-cat/upstream means? Click here for information )

Model	Engine Code (Chassis)	Years
Vauxhall Signum 1.8i
Signum 1.8i 16v 120bhp	Z18XE	7/2004 onward
Direct-fit: £ 59.95	Universal: £ 24.95
Signum 1.8i 16v 120bhp (post catalytic converter)	Z18XE	7/2004 onward
Direct-fit: £ 29.95	Universal: £ 24.95
Signum 1.8i 16v 120bhp (Post Catalytic Convertor)	Z18XE	7/2004 onward
Direct-fit: N/A	Universal: £ 24.95
Signum 1.8i 16v 4cyl 138bhp Post CAT	Z18XER (Hatchback)	11/2005 to 05/2008
Direct-fit: £ 74.95	Universal: N/A

If your make is not listed here, please complete our online form for more information. We can normally get hold of most sensors within a few days.

• There will be at least one sensor at the front of the vehicle, mounted into the exhaust pipe or manifold somewhere before the catalytic convertor.
  This is known as the front, pre-cat or upstream sensor.
  V-type engines (V6, V8 etc) will often have one pre-cat sensor for each bank of cylinders.
  
  
• There will then be another sensor positioned after the catalyst, known as the rear, post-cat or downstream sensor.