Oil sending unit for 2001 Grand Prix 3.1 L motor

[mrbreezeet1]

I need to replace my oil sending unit for the above mentioned vehicle 2001 Grand Prix SE with a 3.1 l motor.
What's the best one to replace it with, an AC Delco?
Anyone happen to know the part number for that or a good alternative I don't want nothing that's going to give me trouble of course a cheap one or anything.
I looked all over Amazon and all over I can't seem to find the right one.

 

[Soft Cars]

GM 12635954

RockAuto or Amazon

 

[Lubener]

I have used aftermarket ones such as Standard and never had a problem.

 

[mrbreezeet1]

Thanks guys.