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ReplacementB491703 Window Regulator - Direct Fit

Part #: B491703 | Mfr #: B491703

In Stock
Ships out in 1-2 Business Days
  • APW Bestseller
  • Low Price Guarantee

5 5 out of 5 stars
(22 customer reviews)

$36.50

List Price: $121.20

Save: $84.70

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  • Location: Rear, Passenger Side
  • Condition: New
  • Operation: Power without motor
  • Product Fit: Direct Fit
  • Quantity Sold: Sold Individually
  • Anticipated Ship Out Time: 1-2 Business Days
  • Replaces OE Number: 51358212100
  • Replaces Partslink Number: BM1551101
  • Warranty: 1-year, unlimited-mileage warranty
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Product reviews

Satisfied by Manjestic, July 29, 2014

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The regulator was packaged nicely to protect it during transit. Price was good and quality good. I did have a little trouble with the studs. They were not spaced exact distance from each other like the OEM part. However I was able to make it fit without too much issue.


good by SV, May 31, 2014

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I m happy. I ve replaced many of these all of them because only one tiny plastic clip broke. Unfortunately this seems to have a similar plastic clip but at least the rails come pre-lubricated which makes install quicker and easier!


Easy to install by Kevin, April 18, 2014

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Watch videos on install for read door and make sure to order the correct side of the car part. It is a simple install.


best priced part by rabbit, March 15, 2014

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Turns out the cheapest price part was the best product I could have hoped for it was better looking perfomed andeasier to install thsn the oem part


by , January 12, 2014

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Part looks great and was easy to install. Looked exactly like the OEM piece and required no extra modification


Window Regulator for BMW 325xi wagon by Whit, October 23, 2013

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I saved over $300 doing this job myself. The part fit perfectly and worked like a charm. I watched a YouTube video before installing to learn how to do the job. Unless you have money burning a hole in your pocket definitely try doing this one yourself. I am NOT a mechanic.


Great Fantastic Buy by Steve, October 14, 2013

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My darling daughters 325I is an 04 and she loves it. And now she loves it again because she can rolled down both front windows!! Great parts everything fit like it is suppose to fit!


Worked lPerfect by Fixit, September 30, 2013

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Service and part worked great. I would without question purchase parts again from them.


Worked well by Daily, June 3, 2013

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Fit right in works happy with the parts price right


very happy by Beamer mechanic, December 4, 2012

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This part was an exact fit and replacement of the original. Ordering was easy and shipping/delivery was fast.


better than OEM by ouch, November 14, 2012

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This was the least expensive unit I could find. About $30 other sites were $100 and up the dealer wanted $180. So I was expecting to get a cheaper part and having to modify it to fit. To my surprise I think this unit looked a better built than the OEM And on the install it fit perfect. This was the first time I paid less money and got a better product.


BMW window regulator by rasta, September 6, 2011

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Was a little skeptical..but got my part delivered a day early and had the best prices. You can't complain with a deal like that!! Thank you!!


Works like an Original BMW part by AlNiCoV, August 7, 2010

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Works great with huge savings. Part is just like the original BMW part that it replaced. I will buy again from this vendor for other parts.


Good as new by texmln, August 25, 2009

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This part is indistinguishable from the OEM version that broke, which a good thing because it costs half of the OEM part. It fits and works perfectly. The only downside is... it's indistinguishable from the OEM part - which means it will break someday. Not a big deal though given the price and ease of replacement.


by , August 20, 2009

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Looks good, it works and wasn't that hard to install...


Perfect Fit by BMW RICK, June 20, 2009

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This is a high quality replacment at a quarter of the price.


so far so good by pattycakes, January 27, 2009

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so far this is the only place that will actually take the time to make sure i am ordering the right part.they make sure i don't order the wrong part by asking questions,that way i don't have to worry about sending things back. when i get the parts they are a perfect fit.


window regulator diy by Giterdone, January 21, 2009

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add tie wrap to reenforce break point (see your old one); check out diy forums for pictures...


Great part part do some work.... by lotus1, November 29, 2008

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This part worked almost flawlessly. The problem was after I installed it and was testing it the cable on the top pulley portion came off the roller and got jammed up. This resulted in having to uninstall everything again and figure out what happened. This issue on this part if that the top guide that's suppose to overlap the roller has too big of a gap and it allowed the cable to come off the roller and get jammed. I simply hammered the small metal piece that's suppose to overlap the roller almost to the point of it touching. This way there would be no way for the cable to come off of the roller. Aside from that just make sure you lubricate the part completly and work the slide up and down. There wasn't any lubrication on the part so it was extremely hard to move the slide up and down. I still recommend the part because it's a lot cheaper then the OEM.


Good Purchase by Tim, September 12, 2008

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Unit is installed and working properly, however, the mounting studs were not the same thread pattern, thus disallowing use of the pre-existing nuts from the factory equipment to mount this replacement. I had to run to the hardware store to get matching hardware. Solution:include mounting nuts with the unit.


Good quality part by AC, June 29, 2008

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Part was just what I wanted and it fit perfect into position.


by gus, June 16, 2008

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It fit and was not difucult to install with a little help from BMW.Thanks.