Second Hand Ford Ka Oxygen Sensor

Yes – all petrol-engined Ford Kas (both the original Mk1, produced from 1996 to 2008, and the Mk2, produced from 2008 to 2016) were fitted with at least one lambda/oxygen sensor as part of their engine management and emissions systems. The sensor monitors exhaust gases and feeds data back to the ECU to control the fuel mixture, so it is a genuine and necessary part on every petrol Ka. If you have the rare diesel-engined Mk2 Ka (the 1.3 TDCi), the exhaust system works differently and you should confirm with the breaker whether a conventional wideband lambda sensor applies to your specific variant.

These are fundamentally different platforms – the Mk1 Ka was built on the old Fiesta Mk3 floorplan, while the Mk2 Ka shared its architecture with the Fiat 500 – so the engine families, exhaust routing, and sensor connectors are different between generations. You should not assume cross-generation fitment, and a breaker will need your exact registration to match the correct sensor. Always confirm the engine code and connector type with the breaker before purchasing.

Within the Mk2 generation (2008–2016), the key factors are the engine code and the emissions standard the car was built to, not simply the model year. Euro 5 regulations tightened from 2011 for new registrations, and a sensor calibrated for a later emissions standard may not behave correctly or could cause an MOT failure if fitted to an earlier car. Give the breaker your registration and engine code so they can match the correct sensor specification rather than just the year.

Trim level does not affect which oxygen sensor you need – Studio, Zetec, Grand Prix, and other Mk2 Ka trims all share the same engine options, and it is the engine code and emissions specification that determine sensor fitment, not the trim name. You may find the harness routing or cable length looks slightly different depending on how the engine bay was dressed at that trim level, so it is worth comparing your existing sensor physically. Confirm the engine code with the breaker and trim will not be a barrier.

A 2007 Ka is a late Mk1 model, built on the original platform with the 1.3i Duratec or 1.6i Duratec petrol engine, and the oxygen sensor must match your specific engine code rather than just the model year. Give the breaker your full registration number and ideally the engine code (found on your V5C or stamped on the engine block) so they can cross-reference the correct part. Late Mk1 cars were also subject to incremental emissions updates, so confirming the specification with the breaker is the safest approach before buying used.

The Mk1 Ka shared some underpinnings with the Fiesta of its era, so there is a chance certain sensors with matching engine codes and connectors may cross-reference – however, exhaust configurations, cable lengths, and sensor thread sizes can differ even between closely related models. The Mk2 Ka used Fiat-based architecture, making cross-brand compatibility much less straightforward. Always give the breaker both the Ka's registration and the source vehicle's details, and let them confirm a match rather than assuming platform similarity guarantees fitment.