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Genuine BMW 51331977609 - Window Regulator (Front Left)
Product Overview
The Genuine BMW Front Left Window Regulator (MPN: 51331977609) is a crucial component for ensuring the proper functioning of your vehicle's window system. This high-quality regulator is engineered specifically for BMW models, providing reliable operation for the front left window. As an assembly that connects seamlessly to the window, it effectively raises and lowers the glass. Over time, window regulators may deteriorate, resulting in issues such as knocking or grinding sounds, or the window falling into the door frame. Replacing your window regulator will restore functionality and enhance your driving experience. Choose Genuine BMW 51331977609 for dependable performance and peace of mind every time you service your vehicle.
Cross Reference Numbers
This Genuine BMW 51331977609 is equivalent to or replaces the following part numbers: 51 33 1 977 609, 51331977609.
Vehicle Compatibility
- BMW 318i 1.9 L4 (1996–1999)
- BMW 318ti 1.8 L4 (1995–1999)
- BMW 328i 2.5 L6 (1995–1998)
- BMW 325i 2.5 L6 (1994–1995)
- BMW M3 3.2 L6 (1997–1998)
This may also fit other applications. Please use the vehicle selector tool to verify fitment.
Why Shop at eEuroparts.com?
- Proven Expertise: Over 25 years of experience with European vehicles means we know your car inside and out.
- Exclusive Kits That Fit™ - complete repair solutions with no guesswork
- Fitment Confidence: Our accurate cataloging ensures you get the right part the first time.
- Fast, Reliable Shipping: Orders ship quickly from our U.S.-based warehouses.
- Transparent Pricing: Competitive prices with no hidden fees or surprise charges.
- Established Trust: Serving the European auto community since 2000.
Frequently Asked Questions
What does the Genuine BMW 51331977609 Window Regulator do?
The front left window regulator controls the movement of the window, allowing it to operate smoothly and securely within the door frame.
How do I know if my Window Regulator needs replacement?
Common signs that your window regulator may need replacement include unusual noises during operation, the window falling into the door frame, and difficulty in raising or lowering the window.
Can I install the Genuine BMW 51331977609 myself?
Yes, the installation of the window regulator can be a DIY task for those with mechanical skills, but caution is advised to ensure proper fitment and functionality.
What are the symptoms of a faulty Window Regulator?
Symptoms of a failing window regulator include the window making unusual noises, falling into the door frame, or becoming stuck in the up or down position, which can impact the convenience and safety of your vehicle.
Why should I choose Genuine BMW for my Window Regulator needs?
Genuine BMW parts, including the 51331977609, are designed to meet OE specifications, ensuring a factory-correct replacement that restores safety and performance. Order Genuine BMW 51331977609 today for a reliable solution.
Note: All information on this page and in the FAQ is for general reference only. Verify fitment and consult a professional as needed. eEuroparts.com is not responsible for incorrect part selection or installation.
- BrandGenuine BMW
- ManufacturerGenuine BMW
- MPN51331977609
- Part TypeWindow Regulator
- PositionFront Left
- OE Part Numbers51 33 1 977 609, 51331977609
- Fitment
- Fitment TypeVehicle Specific
| Year | Make | Model | Submodel | Notes |
|---|---|---|---|---|
| 1996 | BMW | 318i | Base (1.9 L4 GAS) | Notes: Power Operated |
| 1996 | BMW | 328i | Base (2.8 L6 GAS) | Notes: Power Operated |
| 1996 | BMW | 318ti | Base (1.9 L4 GAS) | Notes: Power Operated |
| 1992 | BMW | 325i | Base (2.5 L6 GAS) | Engine: M50, Notes: Power Operated |
| 1997 | BMW | 318ti | Base (1.9 L4 GAS) | Notes: Power Operated |
| 1997 | BMW | M3 | Base (3.2 L6 GAS) | Notes: Power Operated |
| 1997 | BMW | 318i | Base (1.9 L4 GAS) | Notes: Power Operated |
| 1997 | BMW | 328i | Base (2.8 L6 GAS) | Notes: Power Operated |
| 1998 | BMW | 318ti | Base (1.9 L4 GAS) | Notes: Power Operated |
| 1998 | BMW | 318i | Base (1.9 L4 GAS) | Notes: Power Operated |
| 1998 | BMW | M3 | Base (3.2 L6 GAS) | Notes: Power Operated |
| 1998 | BMW | 328i | Base (2.8 L6 GAS) | Notes: Power Operated |
| 1993 | BMW | 325i | Base (2.5 L6 GAS) | Engine: M50TU, Notes: Power Operated |
| 1993 | BMW | 318i | Base (1.8 L4 GAS) | Notes: Power Operated |
| 1995 | BMW | 325i | Base (2.5 L6 GAS) | Notes: Power Operated |
| 1995 | BMW | 318i | Base (1.8 L4 GAS) | Notes: Power Operated |
| 1995 | BMW | 318ti | Base (1.8 L4 GAS) | Notes: Power Operated |
| 1994 | BMW | 318i | Base (1.8 L4 GAS) | Notes: Power Operated |
| 1994 | BMW | 325i | Base (2.5 L6 GAS) | Notes: Power Operated |
| 1999 | BMW | 318ti | Base (1.9 L4 GAS) | Notes: Power Operated |
Warranty Overview
At eEuroparts, we stand behind the quality of the products we sell. Every part we offer is backed by a warranty designed to give you peace of mind and protect your investment.
Standard Warranty – Most Parts
Coverage: 2 years or 24,000 miles (whichever comes first) from purchase date.
Protection: Defects in materials or workmanship under normal personal use.
Eligibility: Applies only to the original purchaser and the vehicle where the part was first installed.
Exclusions:
Wear-and-tear items (brake pads, filters, bulbs, wipers, etc.)
Commercial, fleet, rideshare, off-road, or racing use
Improper installation, misuse, accidents, or modifications
Not Covered: Labor, shipping, towing, or incidental costs.
Bison Performance Warranty – Our House Brand
Coverage: Limited Lifetime Warranty for as long as you own your vehicle.
Applies To: All products sold under the Bison Performance label.
Premium Protection: Goes beyond our standard warranty — if it’s a Bison product, the 2-year/24k mile limit is replaced with lifetime coverage.
Exclusions: Same as the standard warranty (normal wear, commercial use, improper installation, etc.).
What’s Included: Replacement of the defective product (labor and shipping excluded).
Warranty Claim Requirements
To keep claims fast and fair, we require:
Proof of purchase (invoice or order confirmation).
Photos or videos showing the defective part, order number, date, VIN, and odometer reading.
Diagnostic reports or part returns for non-visible issues may be requested.
Claims must be truthful, properly documented, and reflect normal consumer use.
Buy With Confidence: We back our products because we believe in their quality, with a transparent, customer-first warranty process you can trust. And with Bison Performance products, you’ll enjoy Limited Lifetime protection—an assurance few brands can match.
For full details and exclusions, please see our complete Warranty Terms & Conditions.
This summary is for convenience only. For full warranty coverage details, exclusions, and requirements, see our official Warranty Terms & Conditions. In case of conflict, the full policy governs.
Return Policy Overview
Most parts can be returned within 30 days of delivery if unused, uninstalled, and in original packaging.
To start a return, contact customer support via Chat or Contact Us.
Restocking fee: Up to 20% may apply for certain orders (buyer’s remorse, order errors, or special-order items)
Refunds: Issued to your original payment method within 3–5 business days after inspection
Exchanges: Not automatic — please return and reorder
Replacements: May be approved for incorrect or defective items reported within 7 days
Not returnable:
Used or installed parts
Electrical components
Opened filter kits, gaskets, or contaminated items
Final sale or custom orders
Important Notes:
Return shipping is your responsibility unless we made a verified error
Fitment is the customer’s responsibility (we can assist, but do not guarantee)
Country of origin may vary and is not grounds for return
For complete details, please see our full Return Policy.
This Returns summary is provided for convenience only. All returns, refunds, and exchanges are subject to the complete Returns Policy. In the event of any conflict, the full policy governs.
Fast, Reliable Shipping — Straight to Your Door
We ship most orders the same day when placed before 2 PM CST (Monday–Friday). Our main warehouse is just east of Nashville, TN, and we also ship from multiple locations nationwide to get your order to you as quickly as possible.
We use trusted carriers like UPS, FedEx, and USPS.
Tracking info is emailed to you as soon as your order ships.
Delivery estimates at checkout are based on carrier data, but not guaranteed.
Need help with a shipment?
If your order is missing, damaged, or incorrect, just let us know within 5 days of delivery. We’ll walk you through the quick claim process — including a few photos to help us make things right.
For complete details, please see our full Shipping Policy.
This Shipping summary is provided for convenience only. Delivery times, carrier terms, fees, restrictions, risk of loss, and other details are governed by our complete Shipping Policy. In the event of any conflict, the full policy governs.




