Wiper Motor Purchase

Well I am in the market to replace my wiper motor. Can anyone point me in the direction of a motor that is not omix ada. I dont want to have to modify a new motor. Thanks for any help.

Julius

 

Electric low mount should be a Bosch right?

 

Have you tried just searching "12vdc replacement wiper motor for CJ-5" ?
For us Wagon owners it means a a replacement for the stock vacuum style motor. Not only does OA make one but so do several other companies. (fwiw, I'm eliminating all the Rube Goldberg-esque cables and pulleys by going with the Specialty Power Windows kit). I would bet you'll find some alternatives; albeit "better" than Omix Ada ???

 

The bottom mount wiper motor for outside mount is the same as the motor used '76-on for the inside mount.One application uses the end bracket and the other does not (don't recall which), but you can remove the bracket.

Quadratec shows a Crown motor -
https://www.quadratec.com/p/crown-automotive/J0978529-bottom-mount-wiper-motor-cj

Still made overseas, but not Omix. Search the PN and I expect all you will find is Crown. https://www.bing.com/search?q=Jeep+978529

Quadratec is wrong - it parks like the original. If you doubt, call the Crown warehouse here in MA and ask.

 

Out of curiosity, I looked this up in my '74-80 parts book. That lists -

74/75 - PN 978529 - top mounted
74/75 - PN 981384 - bottom mounted
'76-on - PN 5453956

A '71 uses the same windshield and motor as the Intermediate Jeeps. Those 97xxxx and 98xxxx PNs were issued in the late 60s, well before 1971, so they should apply at least back to '71.

I have not seen an Intermediate Jeep with top-mounted wipers. Is Crown mistaken about the PN, or is there some other windshield with top-mounted wipers that uses that motor? Quadratec is the single largest seller of Crown parts. Now, if what I linked to actually is the top-mounted motor, could it not park like the original bottom-mounted motor?

It's been maybe 15 years, but I put the 5453956 motor in my '75. That was all that was available then. All I had to do is switch the brackets. I recall it was plug-in compatible, and it parks. I can find 978529 and 5453956 from Crown online, but not 981384.

 

I know there are at least two different plugs for the outside bottom mount wiper motors depending on the switch. I’ve had them both side by side in my possession.

 

Looking at the pictured online offerings, there is a later application (YJ? TJ?) that has the same style motor with a markedly different wiring harness.

If someone had the earlier parts book, it would be helpful to confirm the part numbers I listed extend back to the first CJs with the bottom mounted outside motor. What I know of Jeep PNs, they originated 68-69ish.

I'm sure about the end bracket, and that would be enough to explain the part number change for '76. I recall I took a chance on the newer style motor, thinking I could make it work, and I could/it did. I can look in my junk bin and see if I have my old motor. It's been a while... I may have spliced the old connector to the new motor. I don't think so, but I can check.

 

No luck in the junk box - must have tossed it. I can look at the CJ later when the weather is better.

 

Both of the ones I had came off ‘68-‘75 CJ windshield frames. One I was rebuilding to put back on and one came off a rusted frame that was fit for parts only. I’ve had several with the two different plugs. Not to say someone couldn’t have changed them but to have had several with the different plugs makes me a bit cynical.
Are the part numbers for the early and intermediate wiper switches the same? Maybe that would shed some light.

 

Don't know about the earlier switches. The intermediates have a two-speed switch that you push in to run the washer.

I should have documented this at the time. Oh well.

Dunno if anyone is interested in this - but I reviewed the diagrams and this is what I understand about the motor action. I'd be surprised if a '71 used this motor and the connections were any different.

These motors are two speed, where part of the field is connected in buck (?) or not to change the speed. The motor has a switch inside (IIRC a wiper on a circuit board path?) to control park. The dash switch controls ground and selects the speed, and the park ground is through the windshield frame. As I understand it, high speed is on all the time, and provides the park motion. To start the wipers from park, you connect the ground at the switch. If not parked, the switch ground is redundant to the park ground on the motor, so the motor keeps running until both the knob and the park switches are open (at park). Low speed at the knob connects part of the motor field in buck. Either high or low speed connects the ground from the dash.

Plug connections and wire colors are the same for '75 and '76. Suggests that I just plugged in the harness that came with the new motor.

 

I will check. The 1971 cj5 went to 1 motor drivers side low.

 

Thanks Timgr

 

‘68-‘75 used the same low mount outside motor. That did not change between the years and the wire colors are the same. The difference I’ve run into was simply the plug shape, nothing else. One was a smallish L shaped connector and going from memory the other was more squarish shaped. I “think” the switch changed from ‘71 to ‘72 also but cannot remember for sure which is why I am wondering about the switch part numbers.

 

I used Crown J0978529 for my 71 and it works as it should, as far as I know...

 

I replaced mine about a year ago. Little to no helpful info in my original post besides that I bought the Omix part because I found no other at the time. I remember when I hooked it up and I had the clip that goes onto the motor from the linkage in the wrong position. My bad. Other than that, it seems fine. I think I've used it twice since the install so no good data on that either really. Sorry. It's all I got.

http://www.earlycj5.com/xf_cj5/index.php?threads/156713/

 

I put on Marine wipers on my Jeep, it took a lot of body work to the windshield frame but I had to paint it anyway.