I am looking to replace an oxygen sensor in my TJ 6G72. What price range am I looking at and which brands are the ones to look for?
Thanks.

Go with aca. They are a good, reliable brand and are 100% Australian owned and made

Bosch as aftermarket, you will have to cut the existing subloom and fit a screw together connector
or NTK which is the OE supplier.
You should be able to get these from MitsFix.

Gerry

Thanks for the advice. What is a good price range?

Fellow on Ebay (Ourtrade) has NTK oza116-m10 for about $55. I think these are a Pajero fitting so you have to refit your existing plug as the Pajero plug is different. Bit of a fiddle to fit compared to OEM but about half the price.