Which one of these O2 sensors is the correct one?

[BTR]

2000 Explorer XLT 4DR 2WD. 4.0L SOHC JOB 1 (VIN E). 5-Speed Automatic O/D 5R55E.

I need to replace the 2-1 (bank 2, sensor 1... upstream) O2 sensor. In the Ford parts online lookup tool, I see 2 sensors that (appear to be) applicable. Which one of these is the correct one?

XL3Z-9F472-BA, DY847… or XL3Z-9F472-AA, DY835… which one?

Please advise. Many thanks!

 

[410Fortune]

Bank 2 is drivers side sensor 1 is upstream sensor closest to the engine


Not sure about factory part numbers but here you can see the upstream sensors are all the same..it is the length and color of the connector that changes on the stock sensors… the aftermarket ones are more universal

At this link you can buy Bosch or motorcraft for your application

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