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          Genuine BMW 63126912433 - Headlight Assembly (Front Left)

          MPN: 63126912433
          The Genuine BMW 63126912433 Headlight Assembly improves nighttime visibility and safety. Designed for easy installation on select BMW models from 2001-2003.
          0.0
          Vehicle Specific
          Check if this part fits your vehicle.
          • $1985.50
          Out of stock

          Product Overview

          Enhance your BMW's visibility and safety with the Genuine BMW Headlight Assembly for the front left position, designed specifically for models equipped with Xenon headlights. This premium-grade assembly, part number 63126912433, is engineered to meet or exceed OEM standards, ensuring a perfect fit and reliable performance for BMW vehicles. It includes everything you need for a seamless installation, allowing you to maintain the quality and integrity of your vehicle's lighting system. Choose Genuine BMW 63126912433 for dependable performance and peace of mind every time you service your vehicle.

          Cross Reference Numbers

          This Genuine BMW 63126912433 is equivalent to or replaces the following part numbers: 63 12 6 912 433, 63 12 8 362 551, 63 12 8 386 559, 63128362551, 63128386559.

          Vehicle Compatibility

          • BMW 525i 2.5 L6 (2001–2003)
          • BMW 530i 3.0 L6 (2001–2003)
          • BMW 540i 4.4 V8 (2001–2003)
          • BMW M5 5.0 V8 (2001–2003)

          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 63126912433 Headlight Assembly do?

          The headlight assembly provides illumination for safe driving during nighttime and low-visibility conditions. It houses the headlight bulb, lens, and housing, ensuring that the light is directed properly to enhance visibility on the road.

          How do I know if my Headlight Assembly needs replacement?

          Common signs that the headlight assembly may need replacement include dim or flickering lights, condensation inside the lens, physical damage to the assembly, and a pitted or hazy lens that affects visibility.

          Can I install the Genuine BMW 63126912433 myself?

          Yes, you can install the headlight assembly yourself with basic tools. However, ensure you follow the installation instructions carefully and take necessary precautions to avoid damaging the assembly or the vehicle's electrical system.

          What are the symptoms of a faulty Headlight Assembly?

          Symptoms of a faulty headlight assembly include dimming or flickering lights, condensation forming inside the lens, or visible damage to the assembly. If these symptoms occur, replacing the assembly is typically necessary to ensure safe driving conditions.

          Why should I choose Genuine BMW for my Headlight Assembly needs?

          Genuine BMW offers reliability and quality assurance for your vehicle's lighting system. Order Genuine BMW 63126912433 today for a factory-correct replacement that restores safety and performance.

          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.

            • eEuroparts SKU
              946308
            • Weight
              6.1 lbs
            • Dimensions (L x W x H)
              29.4073 x 11.452 x 15.632 in
            • Manufacturer Part #
              63126912433
          • Brand
            Genuine BMW
          • Manufacturer
            Genuine BMW
          • MPN
            63126912433
          • Part Type
            Headlight Assembly
          • Position
            Front Left
          • OE Part Numbers
            63 12 6 912 433, 63126912433, 63128362551, 63 12 8 362 551, 63 12 8 386 559, 63128386559
          • Fitment
            • Fitment Type
              Vehicle Specific
          YearMakeModelSubmodelNotes
          2001BMW525iBase (2.5 L6 GAS)Notes: 2001-03 W/XENON, yellow indicator lmp
          2001BMW530iBase (3.0 L6 GAS)Notes: 2001-03 W/XENON, yellow indicator lmp
          2001BMW540iBase (4.4 V8 GAS)Notes: 2001-03 W/XENON, yellow indicator lmp
          2001BMWM5Base (5.0 V8 GAS)Notes: 2001-03 W/XENON, yellow indicator lmp
          2002BMW525iBase (2.5 L6 GAS)Notes: 2001-03 W/XENON, yellow indicator lmp
          2002BMW530iBase (3.0 L6 GAS)Notes: 2001-03 W/XENON, yellow indicator lmp
          2002BMW540iBase (4.4 V8 GAS)Notes: 2001-03 W/XENON, yellow indicator lmp
          2002BMWM5Base (5.0 V8 GAS)Notes: 2001-03 W/XENON, yellow indicator lmp
          2003BMW525iBase (2.5 L6 GAS)Notes: 2001-03 W/XENON, yellow indicator lmp
          2003BMW530iBase (3.0 L6 GAS)Notes: 2001-03 W/XENON, yellow indicator lmp
          2003BMW540iBase (4.4 V8 GAS)Notes: 2001-03 W/XENON, yellow indicator lmp
          2003BMWM5Base (5.0 V8 GAS)Notes: 2001-03 W/XENON, yellow indicator lmp
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          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.

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