Replacement O2 sensor - which one do I need?

[snoopios]

Hi guys,

I've lost my lambda sensor on my other car that I've been working on so I need to get a replacement one, does anyone know which one I need or where the best place is to get one?

Thanks

 

[probedb]

Been a while but I seem to remember getting mine from here https://www.gendan.co.uk/oxygen_lambda_sensors_Mazda_RX7_2.6i.html

 

[Spendyrx]

Wow that's a good price! I bought a bosch single wire around 5 years ago and that cost me 45 quid!

 

[snoopios]

Been a while but I seem to remember getting mine from here https://www.gendan.co.uk/oxygen_lambda_sensors_Mazda_RX7_2.6i.html

Thanks.