2004 Mercury Marauder mystery window motor? (Pics)

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Sep 10, 2018
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275
Location
Northern va
2004 Mercury Marauder right front window motor

I cant seem to find this exact motor anywhere, or even a picture of one like it. There are no part numbers on it anywhere, my local dealer says it’s discontinued and parts stores and rock auto have motors that they say will fit, but they look nothing like this one. The gear that locks into the regulator is completely different.

The motor itself is fine. I took it apart and the plastic gear has excessive wear causing it to bind.


I’m sure I could replace the window motor and regulator as an assembly, but I have no desire to deal with that unless I have no other option. The car is garaged so weather or time isn’t an issue


I’m guessing this type of motor wasn’t used very long and was scrapped in favor of the much more common motor that you can find literally anywhere

Any ideas ?

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If you can't find a replacement part, here are some off the wall suggestions:

1) Will the plastic gear mount upside down. The outer teeth on the unused side look pretty good.

Might have to cut slots into the solid side (right above the slots on the open side) so it would function like the open side. And might have to open up the "smeared" vertical slots a tad. They're smeared a little more than 50%.

2) Could you shim the plastic gear up so the motor gear would fit in the remaining slots.

3) Could have a replacement for the plastic gear machined out of brass. Costly but permanent.
 
That is the gear that kept failing in my Bronoc's power windows. Many times. You can bet if someone took that to a stealership it would cost near $1000 and be told you need a new motor and bla bla bla...... I would try junk yards. A good chance that same gear , I bet is installed in so many FoMoCo vehicles from cars , trucks and suvs.
 
If you can't find a replacement part, here are some off the wall suggestions:

1) Will the plastic gear mount upside down. The outer teeth on the unused side look pretty good.

Might have to cut slots into the solid side (right above the slots on the open side) so it would function like the open side. And might have to open up the "smeared" vertical slots a tad. They're smeared a little more than 50%.

2) Could you shim the plastic gear up so the motor gear would fit in the remaining slots.

3) Could have a replacement for the plastic gear machined out of brass. Costly but permanent.

Unfortunately it won’t fit any other way in the housing. I thought about trying to open up those slots some so maybe it would work.

I looked all over eBay and can’t find a single motor that looks like this one. Seems so odd that this one is different. I’m guessing it was changed for some reason or another. If someone knows, I’d sure like to know.

I thought about seeing if I could have a gear made. But by that time, I’m sure it would cost way more than the headache of changing the regulator assembly.
 
What's the OD? I wonder if the part from the OBS trucks could be made to work?
 
2004 Mercury Marauder right front window motor

I cant seem to find this exact motor anywhere, or even a picture of one like it. There are no part numbers on it anywhere, my local dealer says it’s discontinued and parts stores and rock auto have motors that they say will fit, but they look nothing like this one. The gear that locks into the regulator is completely different.

The motor itself is fine. I took it apart and the plastic gear has excessive wear causing it to bind.


I’m sure I could replace the window motor and regulator as an assembly, but I have no desire to deal with that unless I have no other option. The car is garaged so weather or time isn’t an issue


I’m guessing this type of motor wasn’t used very long and was scrapped in favor of the much more common motor that you can find literally anywhere

Any ideas ?
This unit on Amazon has a similar motor/gear drive mechanism.
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Personally, I'd just change out the entire window regulator, but if you are insistent on not doing that, you should be able to swap out just the gear into your old unit. Keep in mind that your old gear probably melted/stripped due to excessive binding in the regulator mechanism, not the other way around. Replacing the entire regulator assembly would decrease the chance of melting the new gear.
 
What's the OD? I wonder if the part from the OBS trucks could be made to work?

I’m not sure. I can take it back apart and measure it.
This unit on Amazon has a similar motor/gear drive mechanism.
View attachment 253284

Personally, I'd just change out the entire window regulator, but if you are insistent on not doing that, you should be able to swap out just the gear into your old unit. Keep in mind that your old gear probably melted/stripped due to excessive binding in the regulator mechanism, not the other way around. Replacing the entire regulator assembly would decrease the chance of melting the new gear.

I think you are right about replacing the whole thing. If I can’t track down an oem motor I’ll do the regulator and motor.
 
I got a replacement motor/regulator for a Buick Lesabre from eBay that had those "wrench flats" on the motor part. The motor looked smaller than the OE one that came out, but ran the window just as fast, if not faster, because the regulator was new and well-greased. In short I think you have a knockoff part.
 
I got a replacement motor/regulator for a Buick Lesabre from eBay that had those "wrench flats" on the motor part. The motor looked smaller than the OE one that came out, but ran the window just as fast, if not faster, because the regulator was new and well-greased. In short I think you have a knockoff part.

You make a really good point. I had never considered that. I just looked over that motor again and not a single piece has any motorcraft markings on it nor a part number. I bought the car in April of 2019. One owner. It never occurred to me to me that it could have possibly been replaced once prior to me owning it.
How about getting it 3d printed?

I thought about that too, but could it be done since some of the plastic gear is damaged?
 
Well the mystery is solved … this is an aftermarket unit. What really threw me off is that whoever installed it used rivets in the door and I assumed that meant it had not been taken apart before.

I reached up in and there are nuts and bolts in the glass, so it’s definitely an aftermarket part.

I went ahead and ordered a motorcraft motor and regulator.

Thank you to everyone for all the input !
 
Well the mystery is solved … this is an aftermarket unit. What really threw me off is that whoever installed it used rivets in the door and I assumed that meant it had not been taken apart before.

I reached up in and there are nuts and bolts in the glass, so it’s definitely an aftermarket part.

I went ahead and ordered a motorcraft motor and regulator.

Thank you to everyone for all the input !
I always have to remind myself to quote the rivets whenever we do these. We did a lot more when all of the local agencies had Crown Vics. Ford's cataloging on rivets isn't spectacular, so one of our former counter people went through the bins and pulled one of each and made a cardboard thing with each rivet ziptied to it with the part number so techs can point to what they need. Ford hardware part numbers do not go numerically so the next size up rivet or bolt is not just the next number in sequence. Why you ask? Ford is why.
 
I always have to remind myself to quote the rivets whenever we do these. We did a lot more when all of the local agencies had Crown Vics. Ford's cataloging on rivets isn't spectacular, so one of our former counter people went through the bins and pulled one of each and made a cardboard thing with each rivet ziptied to it with the part number so techs can point to what they need. Ford hardware part numbers do not go numerically so the next size up rivet or bolt is not just the next number in sequence. Why you ask? Ford is why.
Honestly I think the people who decide the part numbers get to feel a little bit of power in making it nonsensical. Just like every engineer is certain they can design a better electrical connector than the 700,000 engineers before them.
 
Parts like this, it's always a good move to get OEM when possible. I say this because there might be times where the OEM replacement part has been up-rev'ed to an improved design.
 
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