My 89XJ Sport when new 32 years ago was sold without a rear window wiper. Looking for a wiper motor and arm, auto parts stores only stock wiper motors
for 91 XJs and newer. I know a generic motor and arm would work, anyone have any suggestions on which one to buy? Thanks

 

Source the needed parts from a wrecker. There are folks that take orders for parts, and then pull them for you at a wrecker, then ship them to you, a good option if you live far from a well stocked wrecker.

 

Here is a good used rear wiper motor on ebay $68 with 60 day warentee. Of course you may also need bracketing, and such, I dont know, what else is needed, other than wiper arm and of course wiring. That is why the wrecker is nice, you can get everything get the connectors for the wires, the switch, any brackets and screws, the arm, etc... research the service manual to see what is needed so you can request those parts from a puller guy if you dont pull them yourself.


https://www.ebay.com/itm/1984-1990-J...edirect=mobile


Row 52 wedsite lets you search the pick n pull wreckers sites nation wide by vehicle, then you either go yourself, or send out a request for the specific parts you want.

https://row52.com/partswanted?Postal...tance=0&Page=1

some Pick n Pulls I see over half the guys there are professional pullers, working for individuals or repair shops in pulling parts for them. this is a new thing made
possible by the interweb. I recall the day when you never knew what you might find at the wrecker, now day my computer shows me the row that my target car is in at the yard and a photo of it, updated daily, nation wide!
So the wrecker is probably your best and easiest option, it will fit like OEM, cause it will be OEM!

 

Here's the parts diagram>

https://www.moparpartsgiant.com/part..._liftgate.html

Are you planning to connect the washer too?

 

Dang, this shows only 31 1988-1990 XJ across all yards. Nearest one the me is 400 miles away.

 

Well the pullers can pull the part for you, then ship it to you. or give it time. I have three local yards, within 30 miles. right now no xj is there for any year, however last two months ago there were six. it chnges, some times many, sometimes none, so keep looking, or get the puller guys to help you.

The supply in the wreckers really ebbs and flows, many or few. so give it time. Thats the game you play with the wreckers, but where the pullers can help you.

Of course there is that ebay wiper motor, I have no idea what else you will need other than the arm and wires (and hose if you want the squirter) New arms can be had.