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          Bosch AL0188N - Alternator

          MPN: AL0188N
          The Bosch AL0188N Alternator provides essential electrical power for Volkswagen vehicles, ensuring battery charge and system functionality. Engineered for reliable performance and easy installation.
          0.0
          Vehicle Specific
          Check if this part fits your vehicle.
          • $198.95
          In stock

          Product Overview

          The Bosch Alternator (90A) AL0188N is engineered to deliver reliable performance for your Volkswagen vehicle. As an essential component of your vehicle's electrical system, this alternator efficiently meets the electrical demands of your engine, ensuring your battery remains charged and your vehicle operates smoothly. Crafted with OE-level quality and precision, the Bosch AL0188N is designed for a perfect fit across a range of Volkswagen models. Choose Bosch AL0188N for dependable performance and peace of mind every time you service your vehicle.

          Cross Reference Numbers

          This Bosch AL0188N is equivalent to or replaces the following part numbers: 028903028D, 030903023J, 038903018P, 038903023A, 06A903026A.

          Vehicle Compatibility

          • Volkswagen Beetle 2.5L5 (2005–2007)
          • Volkswagen Golf 2.0L4 (2005–2006)
          • Volkswagen Jetta 1.8L4 (2001–2005)
          • Volkswagen Jetta 2.0L4 (2001–2005)
          • Volkswagen Golf GTI 1.8T (2005)
          • Volkswagen Jetta GLS TDI (2005)
          • Volkswagen Golf GL (2005)
          • Volkswagen Golf GLS (2005)
          • Volkswagen Jetta TDI (2005)
          • Volkswagen Beetle TDI (2006)

          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 AL0188N Alternator do?

          The alternator generates electrical power for your vehicle's systems, charges the battery, and ensures that electrical components function properly while the engine is running.

          How do I know if my Alternator needs replacement?

          Common symptoms of a failing alternator include dimming lights, electrical issues, a dead battery, and a battery warning light on the dashboard. If you notice any of these signs, it may be time to replace your alternator.

          Can I install the Bosch AL0188N myself?

          Yes, you can install the Bosch AL0188N yourself if you have some mechanical experience. However, ensure you follow safety precautions and refer to your vehicle's repair manual for specific instructions.

          What are the symptoms of a faulty Alternator?

          Common symptoms include flickering lights, loss of power to electrical components, and a dead battery. 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 quality and reliability. Order Bosch AL0188N 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
              240453
            • Weight
              13.4085 lbs
            • Dimensions (L x W x H)
              9.8425 x 9.6063 x 0.2756 in
            • Barcode
              00028851125802
            • Manufacturer Part #
              AL0188N
          • Brand
            Bosch
          • Manufacturer
            Bosch
          • MPN
            AL0188N
          • Part Type
            Alternator
          • OE Part Numbers
            038903018A, 038903023A, 030903023J, 06A903026, 028903028D, 038903018P, 06A903026A
          • Features
            Alternator Finish : Aluminum
            Alternator/Generator Rotation : Clockwise
            Amperage Rating : 90
            Brushless : No
            Case Material : Aluminum
            Fan Type : Internal
            New Or Remanufactured : New
            Outside Pulley Diameter : 56
            Plug Clock Rear View Main Mounting Ear at 6 O Clock : 1
            Product Length : 7.362205 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
          2004VolkswagenJettaGLI (2.8 V6 GAS)Notes: with Bosch Unit, To 90 Amp Alternator
          2004VolkswagenJettaGL (2.0 L4 GAS)Notes: To 90 Amp Alternator, with Bosch Unit, with Valeo Unit
          2004VolkswagenJettaGLS (2.0 L4 GAS)Notes: To 90 Amp Alternator, with Bosch Unit, with Valeo Unit
          2004VolkswagenJettaGL (1.8 L4 GAS)Notes: with Bosch Unit, To 90 Amp Alternator, with Valeo Unit
          2004VolkswagenJettaGLI (1.8 L4 GAS)Notes: with Bosch Unit, To 90 Amp Alternator, with Valeo Unit
          2004VolkswagenJettaGLS (1.8 L4 GAS)Notes: with Bosch Unit, To 90 Amp Alternator, with Valeo Unit
          2004VolkswagenR32Base (3.2 V6 GAS)Notes: To 90 Amp Alternator, with Bosch Unit, with Valeo Unit
          2004VolkswagenGolfGL TDI (1.9 L4 DIESEL)Engine: ALH, Notes: with Bosch Unit, To 90 Amp Alternator, with Valeo Unit
          2004VolkswagenGolfGLS TDI (1.9 L4 DIESEL)Engine: ALH, Notes: with Bosch Unit, To 90 Amp Alternator, with Valeo Unit
          2004VolkswagenGolfGL (2.0 L4 GAS)Notes: To 90 Amp Alternator
          2004VolkswagenGolfGLS (2.0 L4 GAS)Notes: To 90 Amp Alternator
          2004VolkswagenGolfGTI 1.8T (1.8 L4 GAS)Notes: To 90 Amp Alternator
          2004VolkswagenBeetleGL (2.0 L4 GAS)Notes: To 90 Amp Alternator, with Bosch Unit, with Valeo Unit
          2004VolkswagenBeetleGLS (2.0 L4 GAS)Notes: To 90 Amp Alternator, with Bosch Unit, with Valeo Unit
          2004VolkswagenBeetleGL (1.9 L4 DIESEL)Notes: To 90 Amp Alternator
          2004VolkswagenBeetleGLS (1.9 L4 DIESEL)Notes: To 90 Amp Alternator
          2004VolkswagenBeetleGLS (1.8 L4 GAS)Notes: with Bosch Unit, To 90 Amp Alternator, with Valeo Unit
          2004VolkswagenBeetleGLX (1.8 L4 GAS)Notes: with Bosch Unit, To 90 Amp Alternator, with Valeo Unit
          2004VolkswagenBeetleTurbo S (1.8 L4 GAS)Notes: with Bosch Unit, To 90 Amp Alternator, with Valeo Unit
          2007VolkswagenBeetle2.5 (2.5 L5 GAS)Notes: To 90 Amp Alternator
          2006VolkswagenBeetleTDI (1.9 L4 DIESEL)Notes: To 90 Amp Alternator
          2006VolkswagenBeetle2.5 (2.5 L5 GAS)Notes: To 90 Amp Alternator
          2006VolkswagenGolfGL (2.0 L4 GAS)Notes: To 90 Amp Alternator
          2006VolkswagenGolfGLS (2.0 L4 GAS)Notes: To 90 Amp Alternator
          2005VolkswagenJettaGL (2.0 L4 GAS)Notes: with Bosch Unit, To 90 Amp Alternator, Notes: To 90 Amp Alternator, with Valeo Unit, Engine: BEV
          2005VolkswagenJettaGLS (2.0 L4 GAS)Notes: with Bosch Unit, To 90 Amp Alternator, Notes: To 90 Amp Alternator, with Valeo Unit, Engine: BEV
          2005VolkswagenJettaGL (1.8 L4 GAS)Notes: Standard, To 90 Amp Alternator
          2005VolkswagenJettaGLI (1.8 L4 GAS)Notes: Standard, To 90 Amp Alternator
          2005VolkswagenJettaGLS (1.8 L4 GAS)Notes: Standard, To 90 Amp Alternator
          2005VolkswagenBeetleGL (2.0 L4 GAS)Notes: To 90 Amp Alternator, with Bosch Unit, with Valeo Unit
          2005VolkswagenBeetleGLS (2.0 L4 GAS)Notes: To 90 Amp Alternator, with Bosch Unit, with Valeo Unit
          2005VolkswagenBeetleGLS TDI (1.9 L4 DIESEL)Notes: To 90 Amp Alternator
          2005VolkswagenBeetleGLS (1.8 L4 GAS)Notes: To 90 Amp Alternator
          2005VolkswagenGolfGTI 1.8T (1.8 L4 GAS)Notes: To 90 Amp Alternator
          2005VolkswagenGolfGL (2.0 L4 GAS)Notes: To 90 Amp Alternator
          2005VolkswagenGolfGLS (2.0 L4 GAS)Notes: To 90 Amp Alternator
          2003VolkswagenJettaGL (1.8 L4 GAS)Notes: To 90 Amp Alternator, with Bosch Unit, with Valeo Unit
          2003VolkswagenJettaGLS (1.8 L4 GAS)Notes: To 90 Amp Alternator, with Bosch Unit, with Valeo Unit
          2003VolkswagenJettaWolfsburg Edition (1.8 L4 GAS)Notes: To 90 Amp Alternator, with Bosch Unit, with Valeo Unit
          2003VolkswagenJettaGL (2.0 L4 GAS)Notes: with Valeo Unit, To 90 Amp Alternator, with Bosch Unit
          2003VolkswagenJettaGLS (2.0 L4 GAS)Notes: with Valeo Unit, To 90 Amp Alternator, with Bosch Unit
          2003VolkswagenGolfGL (1.9 L4 DIESEL)Notes: with Bosch Unit, To 90 Amp Alternator, with Valeo Unit
          2003VolkswagenGolfGLS (1.9 L4 DIESEL)Notes: with Bosch Unit, To 90 Amp Alternator, with Valeo Unit
          2003VolkswagenGolfGL (2.0 L4 GAS)Notes: To 90 Amp Alternator
          2003VolkswagenGolfGLS (2.0 L4 GAS)Notes: To 90 Amp Alternator
          2003VolkswagenGolfGTI 1.8T (1.8 L4 GAS)Notes: To 90 Amp Alternator
          2003VolkswagenGolfGTI 20th Anniversary (1.8 L4 GAS)Notes: To 90 Amp Alternator
          2003VolkswagenBeetleGL (1.8 L4 GAS)Notes: To 90 Amp Alternator, with Bosch Unit, with Valeo Unit
          2003VolkswagenBeetleGLS (1.8 L4 GAS)Notes: To 90 Amp Alternator, with Bosch Unit, with Valeo Unit
          2003VolkswagenBeetleGLX (1.8 L4 GAS)Notes: To 90 Amp Alternator, with Bosch Unit, with Valeo Unit
          2003VolkswagenBeetleTurbo S (1.8 L4 GAS)Notes: To 90 Amp Alternator, with Bosch Unit, with Valeo Unit
          2003VolkswagenBeetleGL (2.0 L4 GAS)Notes: with Bosch Unit, To 90 Amp Alternator, with Valeo Unit
          2003VolkswagenBeetleGLS (2.0 L4 GAS)Notes: with Bosch Unit, To 90 Amp Alternator, with Valeo Unit
          2002VolkswagenJettaGLS (1.8 L4 GAS)Notes: with Bosch Unit, To 90 Amp Alternator, with Valeo Unit
          2002VolkswagenJettaGL (2.0 L4 GAS)Notes: To 90 Amp Alternator, with Hitachi Unit, with Bosch Unit, with Valeo Unit
          2002VolkswagenJettaGLS (2.0 L4 GAS)Notes: To 90 Amp Alternator, with Hitachi Unit, with Bosch Unit, with Valeo Unit
          2002VolkswagenJettaGLI (2.8 V6 GAS)Engine: AFP, Notes: To 90 Amp Alternator
          2002VolkswagenJettaGLS (2.8 V6 GAS)Engine: AFP, Notes: To 90 Amp Alternator
          2002VolkswagenJettaGLX (2.8 V6 GAS)Engine: AFP, Notes: To 90 Amp Alternator
          2002VolkswagenGolfGL (1.9 L4 DIESEL)Notes: with Bosch Unit, To 90 Amp Alternator, with Valeo Unit
          2002VolkswagenGolfGLS (1.9 L4 DIESEL)Notes: with Bosch Unit, To 90 Amp Alternator, with Valeo Unit
          2002VolkswagenGolfGL (2.0 L4 GAS)Notes: To 90 Amp Alternator
          2002VolkswagenGolfGLS (2.0 L4 GAS)Notes: To 90 Amp Alternator
          2002VolkswagenGolfGTI VR6 (2.8 V6 GAS)Engine: AFP, Notes: To 90 Amp Alternator
          2002VolkswagenGolfGTI 1.8T (1.8 L4 GAS)
          2002VolkswagenBeetleGL (1.8 L4 GAS)Notes: with Bosch Unit, To 90 Amp Alternator, with Valeo Unit
          2002VolkswagenBeetleGLS (1.8 L4 GAS)Notes: with Bosch Unit, To 90 Amp Alternator, with Valeo Unit
          2002VolkswagenBeetleGLX (1.8 L4 GAS)Notes: with Bosch Unit, To 90 Amp Alternator, with Valeo Unit
          2002VolkswagenBeetleSport (1.8 L4 GAS)Notes: with Bosch Unit, To 90 Amp Alternator, with Valeo Unit
          2002VolkswagenBeetleTurbo S (1.8 L4 GAS)Notes: with Bosch Unit, To 90 Amp Alternator, with Valeo Unit
          2002VolkswagenBeetleGL (2.0 L4 GAS)Notes: with Valeo Unit, To 90 Amp Alternator, with Bosch Unit
          2002VolkswagenBeetleGLS (2.0 L4 GAS)Notes: with Valeo Unit, To 90 Amp Alternator, with Bosch Unit
          2002VolkswagenBeetleSport (2.0 L4 GAS)Notes: with Valeo Unit, To 90 Amp Alternator, with Bosch Unit
          2001VolkswagenJettaGL (2.0 L4 GAS)Engine: AZG, Engine: AVH, Engine: AEG, Notes: with Hitachi Unit, with Bosch Unit, To 90 Amp Alternator, Notes: To 90 Amp Alternator, with Hitachi Unit, with Bosch Unit, Notes: To 90 Amp Alternator, with Bosch Unit, with Valeo Unit
          2001VolkswagenJettaGLS (2.0 L4 GAS)Engine: AZG, Engine: AVH, Engine: AEG, Notes: with Hitachi Unit, with Bosch Unit, To 90 Amp Alternator, Notes: To 90 Amp Alternator, with Hitachi Unit, with Bosch Unit, Notes: To 90 Amp Alternator, with Bosch Unit, with Valeo Unit
          2001VolkswagenJettaGLS (1.8 L4 GAS)Notes: with Bosch Unit, To 90 Amp Alternator, with Valeo Unit
          2001VolkswagenJettaWolfsburg Edition (1.8 L4 GAS)Notes: with Bosch Unit, To 90 Amp Alternator, with Valeo Unit
          2001VolkswagenGolfGL (2.0 L4 GAS)Engine: AEG, Engine: AZG, Engine: AVH, Notes: Standard, Notes: To 90 Amp Alternator, Notes: with Bosch Unit, To 90 Amp Alternator, with Valeo Unit
          2001VolkswagenGolfGLS (2.0 L4 GAS)Engine: AEG, Engine: AZG, Engine: AVH, Notes: Standard, Notes: To 90 Amp Alternator, Notes: with Bosch Unit, To 90 Amp Alternator, with Valeo Unit
          2001VolkswagenGolfGLS (1.8 L4 GAS)Notes: To 90 Amp Alternator, with Bosch Unit, with Valeo Unit
          2001VolkswagenGolfGTI GLS (1.8 L4 GAS)Notes: To 90 Amp Alternator, with Bosch Unit, with Valeo Unit
          2001VolkswagenBeetleGL (1.8 L4 GAS)Engine: AWV, Engine: APH, Notes: To 90 Amp Alternator, with Valeo Unit, with Bosch Unit, Notes: To 90 Amp Alternator, with Valeo Unit, with Marking # 047 903 018 AX
          2001VolkswagenBeetleGLS (1.8 L4 GAS)Engine: AWV, Engine: APH, Notes: To 90 Amp Alternator, with Valeo Unit, with Bosch Unit, Notes: To 90 Amp Alternator, with Valeo Unit, with Marking # 047 903 018 AX
          2001VolkswagenBeetleGLX (1.8 L4 GAS)Engine: AWV, Engine: APH, Notes: To 90 Amp Alternator, with Valeo Unit, with Bosch Unit, Notes: To 90 Amp Alternator, with Valeo Unit, with Marking # 047 903 018 AX
          2001VolkswagenBeetleSport (1.8 L4 GAS)Engine: AWV, Engine: APH, Notes: To 90 Amp Alternator, with Valeo Unit, with Bosch Unit, Notes: To 90 Amp Alternator, with Valeo Unit, with Marking # 047 903 018 AX
          2000VolkswagenJettaGLS (1.8 L4 GAS)Notes: with Valeo Unit, To 90 Amp Alternator, with Bosch Unit
          2000VolkswagenJettaGL (2.0 L4 GAS)Notes: with Bosch Unit, To 90 Amp Alternator, with Valeo Unit
          2000VolkswagenJettaGLS (2.0 L4 GAS)Notes: with Bosch Unit, To 90 Amp Alternator, with Valeo Unit
          2000VolkswagenGolfGL (2.0 L4 GAS)Notes: with Valeo Unit, To 90 Amp Alternator, with Bosch Unit
          2000VolkswagenGolfGLS (2.0 L4 GAS)Notes: with Valeo Unit, To 90 Amp Alternator, with Bosch Unit
          2000VolkswagenGolfGTI GLS (2.0 L4 GAS)Notes: with Valeo Unit, To 90 Amp Alternator, with Bosch Unit
          2000VolkswagenGolfGLS (1.8 L4 GAS)Notes: To 90 Amp Alternator, with Bosch Unit, with Valeo Unit
          2000VolkswagenGolfGTI GLS (1.8 L4 GAS)Notes: To 90 Amp Alternator, with Bosch Unit, with Valeo Unit
          1999VolkswagenJettaGL (2.0 L4 GAS)Engine: AEG, Notes: To 90 Amp Alternator, with Bosch Unit, with Valeo Unit
          1999VolkswagenJettaGLS (2.0 L4 GAS)Engine: AEG, Notes: To 90 Amp Alternator, with Bosch Unit, with Valeo Unit
          1999VolkswagenJettaWolfsburg Edition (2.0 L4 GAS)Engine: AEG, Notes: To 90 Amp Alternator, with Bosch Unit, with Valeo Unit
          1999VolkswagenGolfGL (2.0 L4 GAS)Notes: To 90 Amp Alternator, with Bosch Unit, with Valeo Unit
          1999VolkswagenGolfGLS (2.0 L4 GAS)Notes: To 90 Amp Alternator, with Bosch Unit, with Valeo Unit
          1999VolkswagenGolfGTI (2.0 L4 GAS)Notes: To 90 Amp Alternator, with Bosch Unit, with Valeo Unit
          1999VolkswagenGolfWolfsburg Edition (2.0 L4 GAS)Notes: To 90 Amp Alternator, with Bosch Unit, with Valeo Unit
          There are more vehicles this part is compatible with. Check if it fits your vehicle.
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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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