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O2 Sensors - Part Number

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Re Ellise S2 - 2004 - with the Rover K Series engine.

Im trying to confirm the part numbers of the pre and post cat O2 sensors..

I have read the BOSCH version is a better alternative, however im open to sugestions from other members


Thank you


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  • Bibs changed the title to O2 Sensors - Part Number
  • 1 month later...

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A bit late to the party with this.....

Lotus:   A117E6007F
Bosch:  0 258 006 127
Rover:   MHK 100840

The two sensors are both the same. I've never had any issues with the cheaper pattern parts and at about a third of the cost of the big names they are worth a punt. The post cat sensor only tells the ECU that the cat is working, nothing to do with emissions, so if nothing else consider using a cheap version in that location - no point in throwing money away.


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