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          Genuine BMW 12317603775 - Voltage Regulator

          MPN: 12317603775
          The Genuine BMW 12317603775 Voltage Regulator ensures stable voltage output, safeguarding your vehicle’s battery and electronics. Designed for easy installation and optimal compatibility.
          0.0
          Vehicle Specific
          Check if this part fits your vehicle.
          • $173.32
          In stock

          Product Overview

          The Genuine BMW Voltage Regulator, part number 12317603775, is an essential component designed to ensure the smooth functioning of your BMW's electrical system. Manufactured to meet OEM specifications, this premium-grade voltage regulator guarantees a perfect fit and reliable performance for your vehicle. Engineered with precision, the voltage regulator provides a stable output voltage, protecting your car's electrical system from voltage spikes and surges. It plays a crucial role in preventing battery overcharging, which can lead to premature battery failure. With this high-quality voltage regulator, you can safeguard your car's sensitive electronics, ensuring a long service life for both your battery and alternator. Choose Genuine BMW 12317603775 for dependable performance and peace of mind every time you service your vehicle.

          Cross Reference Numbers

          This Genuine BMW 12317603775 is equivalent to or replaces the following part numbers: 12 31 7 603 775, 12317603775

          Vehicle Compatibility

          • BMW X5 xDrive35d 3.0L6 Diesel (2010–2013)
          • BMW X5 xDrive48i 4.8V8 Gas (2010)
          • BMW X6 xDrive35i 3.0L6 Gas (2008–2010)
          • BMW X5 4.8i 4.8V8 Gas (2007–2009)

          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 12317603775 Voltage Regulator do?

          The Genuine BMW Voltage Regulator is responsible for maintaining a stable voltage output for your vehicle's electrical system. It protects the battery and sensitive electronics from voltage fluctuations, ensuring that your car operates efficiently.

          How do I know if my Voltage Regulator needs replacement?

          Common indicators of a failing voltage regulator include dimming headlights, flickering dashboard lights, and battery warning lights. If you experience these symptoms, consider replacing the voltage regulator to avoid further electrical issues.

          Can I install the Genuine BMW 12317603775 myself?

          Yes, installation of the Genuine BMW Voltage Regulator is straightforward, making it suitable for both professional mechanics and DIY enthusiasts. However, ensure that you follow proper precautions during installation.

          What are the symptoms of a faulty Voltage Regulator?

          Symptoms of a faulty voltage regulator include dimming headlights and flickering dashboard lights. Addressing these issues promptly can help prevent more significant electrical problems.

          Why should I choose Genuine BMW for my Voltage Regulator needs?

          Genuine BMW parts are manufactured to the highest standards, ensuring optimal performance and reliability. Order Genuine BMW 12317603775 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
              947653
            • Weight
              0.38 lbs
            • Dimensions (L x W x H)
              4.9125 x 2.8125 x 3.955 in
            • Manufacturer Part #
              12317603775
          • Brand
            Genuine BMW
          • Manufacturer
            Genuine BMW
          • MPN
            12317603775
          • Part Type
            Voltage Regulator
          • OE Part Numbers
            12 31 7 603 775, 12317603775
          • Fitment
            • Fitment Type
              Vehicle Specific
          YearMakeModelSubmodelNotes
          2011BMWX5xDrive35d (3.0 L6 DIESEL)Notes: 220 Amp.Alternator
          2007BMWX54.8i (4.8 V8 GAS)Notes: 220 Amp.Alternator
          2009BMWX6xDrive35i (3.0 L6 GAS)
          2009BMWX5xDrive48i (4.8 V8 GAS)Notes: 220 Amp.Alternator
          2010BMWX6xDrive35i (3.0 L6 GAS)
          2010BMWX5xDrive48i (4.8 V8 GAS)Notes: 220 Amp.Alternator
          2008BMWX6xDrive35i (3.0 L6 GAS)
          2008BMWX54.8i (4.8 V8 GAS)Notes: 220 Amp.Alternator
          2013BMWX5xDrive35d (3.0 L6 DIESEL)Notes: 220 Amp.Alternator
          2012BMWX5xDrive35d (3.0 L6 DIESEL)Notes: 220 Amp.Alternator
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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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