BMW 3-Series E90 4-Door Window Motor & Regulator Set
K2 Industries
BMW 3-Series E90 4-Door Window Motor & Regulator Set
Check fitment before ordering
Match the year, make, model, trim and engine in the product details. Review mounting requirements and vehicle modifications. Ask us about this part.
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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.
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.
Your vehicle
Select a vehicle to check the supplied application records for this part.
Choose or change vehicle →Product reference & ordering help
Supplier & part identification
K2 Industries
| Option | SKU / part reference |
|---|---|
| Standard | K2-11511-BMW-006-WCS |
Vehicle compatibility
Read the application years, model, trim, engine and exclusions in the description above. A make-level collection or product recommendation alone does not confirm fitment.
Request fitment help →Installation & specifications
Review the manufacturer’s specifications and installation notes above. Confirm required mounting hardware, tools and modifications before ordering. If instructions are not supplied, contact us with the part reference.
Shipping expectations
Processing and delivery vary by product, supplier and destination. Contact us to confirm timing for your part before planning an installation.
Shipping & delivery informationManufacturer warranty
Coverage and exclusions vary by manufacturer and part. Review the supplied product documentation or ask us for the applicable terms.
Warranty information