O2 bank 1 sensor 1

[Whatfunram]

Can anyone tell me which is bank 1 sensor 1? I think I know just need to be sure because I'm old and forget where I am sometimes so could be wrong

 

[Daw14]

Drivers side closest to the front of truck. Only use OEM sensors on any vehicle. Stick with the brand it was born with .

 

[18CrewDually]

I feel like I just posted about this on this forum but here we go again.
On a V configuration engine, the front most cylinder is always number 1. And the bank with no. 1 cyl. is Bank 1.

 

[rzr6-4]

I feel like I just posted about this on this forum but here we go again.

You did. OP posted the exact same thing twice.