So I drive 2 hours today to get some parts for my xj. And these experts sell me a 1990 power steering pump but my jeep is a 1989. Will these parts interchange? Enging 4.0 i6

 

im prettty positive those should be fine

 

someone else will chime in soon and tell you for sure. (brain fart).........

 

I hope it will

 

Yes it will. You can even use pumps from ZJ's

 

The pumps are not the same.
1987-1989 pn 53005437
1990 pn 53008448

This doesn't mean it will not fit. You have to try, the differences might be only internal.

 

Well it looks like I will ha e to give it a try. Stupid question alert! How will I know if it works please be gentle lol.

 

Well when you take the old one off you compare them (pulley, mounts, fittings etc) and if they are the same you put the new one on and fill it up with atf and give it a try.
Note: when you fill the reservoir it takes a while till the whining sound goes away.

 

It will probably be fine. I used a 97' on my '96 but I had to change out one of the parts to get the line attached. I have pics here.

 

'96 and '97 have the same pn: 52088327