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          Bosch AL0703N - Alternator

          MPN: AL0703N
          The Bosch AL0703N Alternator is designed for BMW vehicles, ensuring reliable power generation and battery charging. Built to OEM specifications for optimal performance.
          0.0
          Vehicle Specific
          Check if this part fits your vehicle.
          • $283.95
          In stock

          Product Overview

          The Bosch AL0703N Alternator is a vital component designed specifically for BMW vehicles, ensuring optimal performance and reliability. This alternator, with a 120A output, adheres to OE standards for precise fitment and functionality, making it an excellent choice for maintaining your vehicle's electrical system. It efficiently converts engine mechanical energy into electrical energy, charging your battery and powering essential components. Choose Bosch AL0703N for dependable performance and peace of mind every time you service your vehicle.

          Cross Reference Numbers

          This Bosch AL0703N is equivalent to or replaces the following part numbers: 12311432980, 12317501597, 12317501599.

          Vehicle Compatibility

          • BMW 325Ci 2.5 L6 (2001–2006)
          • BMW 325i 2.5 L6 (2001–2006)
          • BMW 325xi 2.5 L6 (2001–2006)
          • BMW 330Ci 3.0 L6 (2001–2006)
          • BMW 330i 3.0 L6 (2001–2006)
          • BMW 330xi 3.0 L6 (2001–2006)
          • BMW X5 3.0i (2001–2006)
          • BMW 525i 2.5 L6 (2001–2006)
          • BMW 530i 3.0 L6 (2001–2006)
          • BMW Z3 2.5 L6 & 3.0 L6 (2001–2002)

          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 AL0703N Alternator do?

          The Bosch AL0703N alternator is responsible for generating electrical power while the engine is running. It charges the battery and powers the vehicle's electrical systems, ensuring everything from lights to infotainment systems functions effectively.

          How do I know if my alternator needs replacement?

          Common signs that your alternator may need replacement include a battery warning light illuminated on the dashboard, dim or flickering headlights, malfunctioning electrical accessories, and difficulty starting the engine.

          Can I install the Bosch AL0703N myself?

          Yes, the Bosch AL0703N alternator can be installed by DIY enthusiasts with basic mechanical skills. However, it is recommended to follow a repair manual and take necessary precautions when working on your vehicle's electrical system.

          What are the symptoms of a faulty alternator?

          Symptoms of a faulty alternator include poor electrical performance, such as dimming lights, erratic power to accessories, and battery drain. If you see DTCs such as P0562 or P0620, it may indicate a failing alternator.

          Why should I choose Bosch for my alternator needs?

          Bosch is a trusted name in automotive parts, known for high-quality and reliable products. Order Bosch AL0703N 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
              240462
            • Weight
              14.5395 lbs
            • Dimensions (L x W x H)
              9.6457 x 9.6457 x 0.2756 in
            • Barcode
              00028851125826
            • Manufacturer Part #
              AL0703N
          • Brand
            Bosch
          • Manufacturer
            Bosch
          • MPN
            AL0703N
          • Part Type
            Alternator
          • OE Part Numbers
            12311432980, 12317501599, 12317501597, 12311740629, 12317551253
          • Features
            Alternator Finish : Aluminum
            Alternator/Generator Rotation : Clockwise
            Amperage Rating : 120
            Brushless : No
            Case Material : Aluminum
            Fan Type : Internal
            New Or Remanufactured : New
            Outside Pulley Diameter : 50
            Plug Clock Rear View Main Mounting Ear at 6 O Clock : 2
            Product Length : 9.330709 in
            Prop 65 Warning Label Required? : No
            Pulley Groove Quantity : 6
            Pulley Included : Yes
            Pulley Type / Belt Type (Alternator) : 6S
            Regulator Type : Internal
            Voltage : 14
          • Fitment
            • Fitment Type
              Vehicle Specific
          YearMakeModelSubmodelNotes
          2000BMW323CiBase (2.5 L6 GAS)Notes: To 120 Amp Alternator
          2000BMW323iBase (2.5 L6 GAS)Notes: To 120 Amp Alternator
          2000BMW328CiBase (2.8 L6 GAS)Notes: To 120 Amp Alternator
          2000BMW328iBase (2.8 L6 GAS)Notes: To 120 Amp Alternator
          2000BMW528iBase (2.8 L6 GAS)Notes: To 120 Amp Alternator
          1999BMW323iBase (2.5 L6 GAS)Notes: To 120 Amp Alternator
          1999BMW328iBase (2.8 L6 GAS)Notes: To 120 Amp Alternator
          1999BMW528iBase (2.8 L6 GAS)Notes: To 120 Amp Alternator
          1998BMW528iBase (2.8 L6 GAS)Notes: To 120 Amp Alternator
          2006BMW330xiBase (3.0 L6 GAS)Notes: To 120 Amp Alternator
          2006BMW325CiBase (2.5 L6 GAS)Engine: M54, Notes: To 120 Amp Alternator, with Square Connector
          2006BMW330CiBase (3.0 L6 GAS)Notes: To 120 Amp Alternator
          2006BMWX53.0i (3.0 L6 GAS)Notes: To 120 Amp Alternator
          2001BMW325CiBase (2.5 L6 GAS)Notes: To 120 Amp Alternator, with Square Connector
          2001BMW325iBase (2.5 L6 GAS)Notes: To 120 Amp Alternator, with Square Connector
          2001BMW325xiBase (2.5 L6 GAS)Notes: To 120 Amp Alternator
          2001BMW330CiBase (3.0 L6 GAS)Notes: To 120 Amp Alternator
          2001BMW330iBase (3.0 L6 GAS)Notes: To 120 Amp Alternator
          2001BMW330xiBase (3.0 L6 GAS)Notes: To 120 Amp Alternator
          2001BMW525iBase (2.5 L6 GAS)Notes: To 120 Amp Alternator
          2001BMW530iBase (3.0 L6 GAS)Notes: To 120 Amp Alternator
          2001BMWX53.0i (3.0 L6 GAS)Notes: To 120 Amp Alternator
          2001BMWZ3Roadster (2.5 L6 GAS)Notes: To 120 Amp Alternator
          2001BMWZ3Coupe (3.0 L6 GAS)Notes: To 120 Amp Alternator
          2001BMWZ3Roadster (3.0 L6 GAS)Notes: To 120 Amp Alternator
          2002BMW325CiBase (2.5 L6 GAS)Notes: with Square Connector, To 120 Amp Alternator
          2002BMW325iBase (2.5 L6 GAS)Notes: To 120 Amp Alternator, with Square Connector
          2002BMW325xiBase (2.5 L6 GAS)Notes: To 120 Amp Alternator
          2002BMW330CiBase (3.0 L6 GAS)Notes: To 120 Amp Alternator
          2002BMW330iBase (3.0 L6 GAS)Notes: To 120 Amp Alternator
          2002BMW330xiBase (3.0 L6 GAS)Notes: To 120 Amp Alternator
          2002BMW525iBase (2.5 L6 GAS)Notes: To 120 Amp Alternator
          2002BMW530iBase (3.0 L6 GAS)Notes: To 120 Amp Alternator
          2002BMWX53.0i (3.0 L6 GAS)Notes: To 120 Amp Alternator
          2002BMWZ3Coupe (3.0 L6 GAS)Notes: To 120 Amp Alternator
          2002BMWZ3Roadster (3.0 L6 GAS)Notes: To 120 Amp Alternator
          2002BMWZ3Roadster (2.5 L6 GAS)Notes: To 120 Amp Alternator
          2003BMW325CiBase (2.5 L6 GAS)Engine: M54, Engine: M56, Notes: To 120 Amp Alternator, with Square Connector, Notes: To 120 Amp Alternator
          2003BMW325iBase (2.5 L6 GAS)Engine: M56, Engine: M54, Notes: To 120 Amp Alternator, Notes: with Square Connector, To 120 Amp Alternator, Notes: To 120 Amp Alternator, with Square Connector
          2003BMW325xiBase (2.5 L6 GAS)Notes: To 120 Amp Alternator
          2003BMW330CiBase (3.0 L6 GAS)Notes: To 120 Amp Alternator
          2003BMW330iBase (3.0 L6 GAS)Notes: To 120 Amp Alternator
          2003BMW330xiBase (3.0 L6 GAS)Notes: To 120 Amp Alternator
          2003BMW525iBase (2.5 L6 GAS)Notes: To 120 Amp Alternator
          2003BMW530iBase (3.0 L6 GAS)Notes: To 120 Amp Alternator
          2003BMWX53.0i (3.0 L6 GAS)Notes: To 120 Amp Alternator
          2004BMW325CiBase (2.5 L6 GAS)Engine: M54, Notes: with Square Connector, To 120 Amp Alternator
          2004BMW325iBase (2.5 L6 GAS)Engine: M56, Engine: M54, Notes: To 120 Amp Alternator, Notes: To 120 Amp Alternator, with Square Connector
          2004BMW325xiBase (2.5 L6 GAS)Notes: To 120 Amp Alternator
          2004BMW330CiBase (3.0 L6 GAS)Notes: To 120 Amp Alternator
          2004BMW330iBase (3.0 L6 GAS)Notes: To 120 Amp Alternator
          2004BMW330xiBase (3.0 L6 GAS)Notes: To 120 Amp Alternator
          2004BMWX53.0i (3.0 L6 GAS)Notes: To 120 Amp Alternator
          2005BMW325CiBase (2.5 L6 GAS)Engine: M54, Notes: with Square Connector, To 120 Amp Alternator
          2005BMW325iBase (2.5 L6 GAS)Engine: M54, Notes: To 120 Amp Alternator, with Square Connector
          2005BMW325xiBase (2.5 L6 GAS)Notes: To 120 Amp Alternator
          2005BMW330CiBase (3.0 L6 GAS)Notes: To 120 Amp Alternator
          2005BMW330iBase (3.0 L6 GAS)Notes: To 120 Amp Alternator
          2005BMW330xiBase (3.0 L6 GAS)Notes: To 120 Amp Alternator
          2005BMWX53.0i (3.0 L6 GAS)Notes: To 120 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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