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          Bosch AL9357X - Alternator (Remanufactured)

          MPN: AL9357X
          The Bosch AL9357X Alternator is essential for charging your BMW's battery and powering electrical systems. Designed for reliable performance and easy installation.
          0.0
          Vehicle Specific
          Check if this part fits your vehicle.
          • $274.95 +$75.00 Core Charge
            Core Charge

            A core is some portion of a part that can be recycled or reused by the manufacturer. This helps to reduce product cost and is good for our environment. For this reason a product with a core has an additional charge associated with it. If the old part is returned in reusable condition, the core charge will be refunded.

          In stock

          Product Overview

          The Bosch AL9357X Alternator is a premium-grade component specifically designed for BMW vehicles, ensuring reliable performance and OE-level quality. This alternator is essential for charging your vehicle's battery and powering electrical systems, delivering consistent voltage to keep your car running smoothly. When your engine is running, the alternator generates alternating current, which is converted to direct current to recharge the battery and supply power to electrical components. If your electrical system isn't performing as expected, it may signal a failing alternator, often indicated by a drop in voltage or a dashboard warning light. Choose Bosch AL9357X for dependable performance and peace of mind every time you service your vehicle.

          Cross Reference Numbers

          This Bosch AL9357X is equivalent to or replaces the following part numbers: 12317537959, 12317540990, 12317540992, 12317540994, 12317542935.

          Vehicle Compatibility

          • BMW 550i 4.8 V8 (2006–2010)
          • BMW 650i 4.8 V8 (2006–2010)
          • BMW 750i 4.8 V8 (2006–2008)
          • BMW 750Li 4.8 V8 (2006–2008)
          • BMW Alpina B7 4.4 V8 (2007–2008)
          • BMW 545i 4.4 V8 (2004–2005)
          • BMW 645Ci 4.4 V8 (2004–2005)
          • BMW 745i 4.4 V8 (2004–2005)
          • BMW 745Li 4.4 V8 (2004–2005)
          • BMW X5 4.4i (2004–2005)

          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 Fitâ„¢ - 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 Bosch AL9357X Alternator do?

          The alternator is a crucial component of your vehicle's electrical system. It converts mechanical energy from the engine into electrical energy, maintaining the charge of the battery and powering the vehicle's electrical systems when the engine is running.

          How do I know if my alternator needs replacement?

          Common symptoms of a failing alternator include dimming headlights, electrical issues, a dead battery, strange noises from the alternator area, and dashboard warning lights indicating a charging problem.

          Can I install the Bosch AL9357X myself?

          Yes, the Bosch AL9357X can be installed by DIY enthusiasts with automotive knowledge. Ensure to follow proper safety precautions and consult a repair manual for guidance.

          What are the symptoms of a faulty alternator?

          Symptoms of a failing alternator include poor charging of the battery, dimming lights, and electrical malfunctions. If you see DTCs such as P0562 (System Voltage Low) and P0620 (Generator Control Circuit), it may indicate a failing alternator.

          Why should I choose Bosch for my alternator needs?

          Bosch is known for its high-quality automotive parts, and the AL9357X is no exception. It is designed to meet or exceed OEM specifications, ensuring reliability and performance. Order Bosch AL9357X 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
              242238
            • Weight
              18.9487 lbs
            • Dimensions (L x W x H)
              11.2992 x 9.1339 x 8.4252 in
            • Barcode
              00028851411219
            • Manufacturer Part #
              AL9357X
          • Brand
            Bosch
          • Manufacturer
            Bosch
          • MPN
            AL9357X
          • Part Type
            Alternator
          • OE Part Numbers
            12317537959, 12317540992, 12317542935, 12317540994, 12317540990
          • Features
            Alternator Finish : Aluminum
            Alternator/Generator Rotation : Clockwise
            Amperage Rating : 180
            Brushless : No
            Case Material : Aluminum
            External Fan Included : Yes
            External Regulator Included : Yes
            Fan Type : Internal
            New Or Remanufactured : Remanufactured
            One Wire Capable : No
            Plug Clock Rear View Main Mounting Ear at 6 O Clock : 12
            Plug Type : 430
            Prop 65 Warning Label Required? : No
            Pulley Included : Yes
            Pulley Type / Belt Type (Alternator) : 6S
            Regulator Type : Internal
            Voltage : 12
          • Fitment
            • Fitment Type
              Vehicle Specific
          YearMakeModelSubmodelNotes
          2004BMWX54.8is (4.8 V8 GAS)
          2004BMWX54.4i (4.4 V8 GAS)
          2004BMW745LiBase (4.4 V8 GAS)Notes: Air Cooled
          2004BMW745iBase (4.4 V8 GAS)Notes: From 11/2003
          2004BMW545iBase (4.4 V8 GAS)
          2004BMW645CiBase (4.4 V8 GAS)
          2002BMW745iBase (4.4 V8 GAS)
          2003BMW745iBase (4.4 V8 GAS)Notes: Air Cooled
          2005BMW745iBase (4.4 V8 GAS)
          2005BMW745LiBase (4.4 V8 GAS)
          2005BMW545iBase (4.4 V8 GAS)
          2005BMW645CiBase (4.4 V8 GAS)
          2005BMWX54.4i (4.4 V8 GAS)
          2005BMWX54.8is (4.8 V8 GAS)
          2007BMWAlpina B7Base (4.4 V8 GAS)
          2007BMW550iBase (4.8 V8 GAS)
          2007BMW650iBase (4.8 V8 GAS)
          2007BMW750iBase (4.8 V8 GAS)
          2007BMW750LiBase (4.8 V8 GAS)
          2008BMWAlpina B7Base (4.4 V8 GAS)
          2008BMW550iBase (4.8 V8 GAS)
          2008BMW650iBase (4.8 V8 GAS)
          2008BMW750iBase (4.8 V8 GAS)
          2008BMW750LiBase (4.8 V8 GAS)
          2006BMWX54.8is (4.8 V8 GAS)
          2006BMWX54.4i (4.4 V8 GAS)
          2006BMW750LiBase (4.8 V8 GAS)
          2006BMW750iBase (4.8 V8 GAS)
          2006BMW550iBase (4.8 V8 GAS)
          2006BMW650iBase (4.8 V8 GAS)
          2009BMW550iBase (4.8 V8 GAS)
          2009BMW650iBase (4.8 V8 GAS)
          2010BMW550iBase (4.8 V8 GAS)
          2010BMW650iBase (4.8 V8 GAS)
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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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