K2 Industries

BMW 3-Series E90 4-Door Window Motor & Regulator Set

$100.00 $79.99 Save $20.01
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BMW 3-Series E90 4-Door Window Motor & Regulator Set

OEM-style window motor and regulator assembly for both front doors. Hard panel construction designed to restore full window operation without the dealership markup. Direct bolt-in replacement at factory mounting points.

✓ Factory Mounting Points ✓ In-House Quality Check ✓ Ships from FL Warehouse
Key Features
  • Both front doors included - One motor/regulator set per side, ready to install.
  • Factory bolt pattern - No modification or drilling required.
  • Complete assembly - Motor and regulator integrated, no separate sourcing needed.
Specs
  • Configuration: Front door window motor and regulator assembly (qty. 2)
  • Condition: New
What's Included
  • Window motor and regulator assembly (driver side)
  • Window motor and regulator assembly (passenger side)
Frequently Asked Questions

Do I need new fasteners to install these, or will OEM bolts work?

Factory bolts will work fine. These mount at the original attachment points — no special hardware required. Grab your socket set and you're good.

Can I install one side at a time, or do both doors need to come apart together?

One at a time, no problem. Each assembly is independent. Do the driver side, test it, then move to the passenger side whenever you're ready.

What if the window doesn't move smoothly after installation?

Check that the regulator tracks are clean and aligned inside the door panel — debris can bind the mechanism. If tracks are clear and it still binds, the assembly may have shipped with a defect. Contact us with photos and we'll make it right.

Products received may vary slightly from images due to manufacturing tolerances or supply chain variables.

International Orders (Outside USA)

Please be aware your country may charge import fees of up to 20% in some cases. If delivery is refused, return shipping costs us 4x the original shipping fee, so we will charge a 50% restocking fee. By purchasing you agree to these terms.
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