where is the oil pressure sending unit on 1993 Ford F-150

Do the oil pressure sending units go bad on these models often

Asked by for the 1993 Ford F-150
Just replaced mine,it's on top,behind the spark plugs
on my 93 ford f-150 ....
I have 108,0000 miles on mine and I was told to
replace it per you owners manual or ask a auto parts person,they are not to much money.
1 more answer
If the auto parts stores sell them,Then its a common part that fails, Looks like they have a short and long oil pressure sender available, about $7 to $10 and its located on the side of the engine block.