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Hitachi ALR0573 - Voltage Regulator
Product Overview
The Hitachi Voltage Regulator ALR0573 is a crucial component for ensuring optimal performance in your Audi, Volkswagen, and Mercedes-Benz vehicles. This premium-grade voltage regulator is designed to maintain a steady voltage output from your vehicle's alternator, thereby safeguarding the electrical system and enhancing overall reliability. Crafted from high-quality materials, the ALR0573 is built to withstand harsh conditions, making it an ideal choice for those who demand durability and longevity. Its compact design allows for easy installation, ensuring that you can restore your vehicle's electrical system with confidence. Choose Hitachi ALR0573 for dependable performance and peace of mind every time you service your vehicle.
Cross Reference Numbers
This Hitachi ALR0573 is equivalent to or replaces the following part numbers:
ALR0573
Vehicle Compatibility
- Audi A3 (2011–2016)
- Audi A3 Quattro (2011–2016)
- Volkswagen Beetle (2012–2016)
- Volkswagen CC (2011–2016)
- Volkswagen Golf (2011–2016)
- Volkswagen Jetta (2011–2016)
- Volkswagen Passat (2011–2016)
- Volkswagen Tiguan (2011–2016)
- Volkswagen Eos (2007–2016)
- Mercedes-Benz SLK55 AMG (2005–2010)
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 Hitachi ALR0573 Voltage Regulator do?
The Hitachi Voltage Regulator regulates the voltage output from your vehicle's alternator, ensuring optimal performance of the electrical system. It helps to maintain a consistent voltage level, preventing electrical surges that can damage sensitive components.
How do I know if my Voltage Regulator needs replacement?
Signs that your voltage regulator may need replacement include dimming or flickering lights, battery warning lights on the dashboard, difficulty starting the vehicle, and electrical issues with components such as the radio and power windows.
Can I install the Hitachi ALR0573 myself?
Yes, the Hitachi ALR0573 can be installed as a DIY project. However, it is important to follow safety precautions and ensure that the vehicle's electrical system is properly handled during installation.
What are the symptoms of a faulty Voltage Regulator?
Common symptoms of a faulty voltage regulator include fluctuating or inconsistent electrical performance, dimming lights, and potential battery drain. If you experience electrical issues, common DTCs associated with voltage regulator malfunctions may include P0562 (System Voltage Low) and P0563 (System Voltage High).
Why should I choose Hitachi for my Voltage Regulator needs?
Choosing Hitachi means opting for quality and reliability backed by years of expertise in automotive components. Order Hitachi ALR0573 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.
- BrandHitachi
- ManufacturerHitachi
- MPNALR0573
- Part TypeVoltage Regulator
- Cross Reference Numbers130573, VR850
- FeaturesCalifornia Proposition 65 Image : prop65_cancer.jpg
California Proposition 65 Required : Y
California Proposition 65 Text : WARNING Cancer. ADVERTENCIA Cáncer. AVERTISSEMENT Cancer. www.P65Warnings.ca.gov
Manufacturer : Hitachi
- Fitment
- Fitment TypeVehicle Specific
| Year | Make | Model | Submodel | Notes |
|---|---|---|---|---|
| 2001 | Mercedes-Benz | C240 | Base (2.6 V6 GAS) | Engine: 112.912, Valves: 18, Chassis: 203.061, Notes: Availability: Available to Order, New Or Remanufactured: Remanufactured |
| 2001 | Mercedes-Benz | C320 | Base (3.2 V6 GAS) | Engine: 112.947, Valves: 18, Chassis: 203.064, Notes: Availability: Available to Order, New Or Remanufactured: Remanufactured |
| 2001 | Audi | Allroad Quattro | Base (2.7 V6 GAS) | Notes: Availability: Available to Order, New Or Remanufactured: Remanufactured |
| 2001 | Volkswagen | Beetle | GL (2.0 L4 GAS) | Notes: Availability: Available to Order, New Or Remanufactured: Remanufactured |
| 2001 | Volkswagen | Beetle | GLS (2.0 L4 GAS) | Notes: Availability: Available to Order, New Or Remanufactured: Remanufactured |
| 2001 | Volkswagen | Beetle | Sport (2.0 L4 GAS) | Notes: Availability: Available to Order, New Or Remanufactured: Remanufactured |
| 2001 | Volkswagen | Beetle | GL (1.9 L4 DIESEL) | Notes: Availability: Available to Order, New Or Remanufactured: Remanufactured |
| 2001 | Volkswagen | Beetle | GLS (1.9 L4 DIESEL) | Notes: Availability: Available to Order, New Or Remanufactured: Remanufactured |
| 2001 | Volkswagen | Beetle | Sport (1.9 L4 DIESEL) | Notes: Availability: Available to Order, New Or Remanufactured: Remanufactured |
| 2001 | Volkswagen | Beetle | GL (1.8 L4 GAS) | Notes: Availability: Available to Order, New Or Remanufactured: Remanufactured |
| 2001 | Volkswagen | Beetle | GLS (1.8 L4 GAS) | Notes: Availability: Available to Order, New Or Remanufactured: Remanufactured |
| 2001 | Volkswagen | Beetle | GLX (1.8 L4 GAS) | Notes: Availability: Available to Order, New Or Remanufactured: Remanufactured |
| 2001 | Volkswagen | Beetle | Sport (1.8 L4 GAS) | Notes: Availability: Available to Order, New Or Remanufactured: Remanufactured |
| 2001 | Volkswagen | Golf | GTI GLX (2.8 V6 GAS) | Notes: Availability: Available to Order, New Or Remanufactured: Remanufactured |
| 2001 | Volkswagen | Golf | GL (2.0 L4 GAS) | Notes: Availability: Available to Order, New Or Remanufactured: Remanufactured |
| 2001 | Volkswagen | Golf | GLS (2.0 L4 GAS) | Notes: Availability: Available to Order, New Or Remanufactured: Remanufactured |
| 2001 | Volkswagen | Golf | GL (1.9 L4 DIESEL) | Notes: Availability: Available to Order, New Or Remanufactured: Remanufactured |
| 2001 | Volkswagen | Golf | GLS (1.9 L4 DIESEL) | Notes: Availability: Available to Order, New Or Remanufactured: Remanufactured |
| 2001 | Volkswagen | Golf | GLS (1.8 L4 GAS) | Notes: Availability: Available to Order, New Or Remanufactured: Remanufactured |
| 2001 | Volkswagen | Golf | GTI GLS (1.8 L4 GAS) | Notes: Availability: Available to Order, New Or Remanufactured: Remanufactured |
| 2001 | Volkswagen | Jetta | GLS (2.8 V6 GAS) | Notes: Availability: Available to Order, New Or Remanufactured: Remanufactured |
| 2001 | Volkswagen | Jetta | GLX (2.8 V6 GAS) | Notes: Availability: Available to Order, New Or Remanufactured: Remanufactured |
| 2001 | Volkswagen | Jetta | GL (2.0 L4 GAS) | Notes: Availability: Available to Order, New Or Remanufactured: Remanufactured |
| 2001 | Volkswagen | Jetta | GLS (2.0 L4 GAS) | Notes: Availability: Available to Order, New Or Remanufactured: Remanufactured |
| 2001 | Volkswagen | Jetta | TDI (1.9 L4 DIESEL) | Notes: Availability: Available to Order, New Or Remanufactured: Remanufactured |
| 2001 | Volkswagen | Jetta | GLS (1.8 L4 GAS) | Notes: Availability: Available to Order, New Or Remanufactured: Remanufactured |
| 2001 | Volkswagen | Jetta | Wolfsburg Edition (1.8 L4 GAS) | Notes: Availability: Available to Order, New Or Remanufactured: Remanufactured |
| 2002 | Mercedes-Benz | C240 | Base (2.6 V6 GAS) | Engine: 112.912, Valves: 18, Chassis: 203.061, Notes: Availability: Available to Order, New Or Remanufactured: Remanufactured |
| 2002 | Mercedes-Benz | C320 | Base (3.2 V6 GAS) | Engine: 112.946, Valves: 18, Chassis: 203.264, Chassis: 203.064, Notes: Availability: Available to Order, New Or Remanufactured: Remanufactured |
| 2002 | Audi | A4 | Base (3.0 V6 GAS) | Notes: Availability: Available to Order, New Or Remanufactured: Remanufactured, From vin 8E-2-000 001 |
| 2002 | Audi | A4 | Base (1.8 L4 GAS) | Notes: Availability: Available to Order, New Or Remanufactured: Remanufactured, From vin 8E-2-000 001 |
| 2002 | Audi | A4 Quattro | Avant (3.0 V6 GAS) | Notes: Availability: Available to Order, New Or Remanufactured: Remanufactured, From vin 8E-2-000 001 |
| 2002 | Audi | A4 Quattro | Base (3.0 V6 GAS) | Notes: Availability: Available to Order, New Or Remanufactured: Remanufactured, From vin 8E-2-000 001 |
| 2002 | Audi | A4 Quattro | Avant (1.8 L4 GAS) | Notes: Availability: Available to Order, New Or Remanufactured: Remanufactured, From vin 8E-2-000 001 |
| 2002 | Audi | A4 Quattro | Base (1.8 L4 GAS) | Notes: Availability: Available to Order, New Or Remanufactured: Remanufactured, From vin 8E-2-000 001 |
| 2002 | Audi | A6 | Base (3.0 V6 GAS) | Notes: Availability: Available to Order, New Or Remanufactured: Remanufactured |
| 2002 | Audi | A6 Quattro | Avant (3.0 V6 GAS) | Notes: Availability: Available to Order, New Or Remanufactured: Remanufactured |
| 2002 | Audi | A6 Quattro | Base (3.0 V6 GAS) | Notes: Availability: Available to Order, New Or Remanufactured: Remanufactured |
| 2002 | Audi | Allroad Quattro | Base (2.7 V6 GAS) | Notes: Availability: Available to Order, New Or Remanufactured: Remanufactured |
| 2002 | Volkswagen | Beetle | GL (2.0 L4 GAS) | Notes: Availability: Available to Order, New Or Remanufactured: Remanufactured |
| 2002 | Volkswagen | Beetle | GLS (2.0 L4 GAS) | Notes: Availability: Available to Order, New Or Remanufactured: Remanufactured |
| 2002 | Volkswagen | Beetle | Sport (2.0 L4 GAS) | Notes: Availability: Available to Order, New Or Remanufactured: Remanufactured |
| 2002 | Volkswagen | Beetle | GL (1.9 L4 DIESEL) | Notes: Availability: Available to Order, New Or Remanufactured: Remanufactured |
| 2002 | Volkswagen | Beetle | GLS (1.9 L4 DIESEL) | Notes: Availability: Available to Order, New Or Remanufactured: Remanufactured |
| 2002 | Volkswagen | Beetle | Sport (1.9 L4 DIESEL) | Notes: Availability: Available to Order, New Or Remanufactured: Remanufactured |
| 2002 | Volkswagen | Beetle | GL (1.8 L4 GAS) | Notes: Availability: Available to Order, New Or Remanufactured: Remanufactured |
| 2002 | Volkswagen | Beetle | GLS (1.8 L4 GAS) | Notes: Availability: Available to Order, New Or Remanufactured: Remanufactured |
| 2002 | Volkswagen | Beetle | GLX (1.8 L4 GAS) | Notes: Availability: Available to Order, New Or Remanufactured: Remanufactured |
| 2002 | Volkswagen | Beetle | Sport (1.8 L4 GAS) | Notes: Availability: Available to Order, New Or Remanufactured: Remanufactured |
| 2002 | Volkswagen | Beetle | Turbo S (1.8 L4 GAS) | Notes: Availability: Available to Order, New Or Remanufactured: Remanufactured |
| 2002 | Volkswagen | Jetta | GLI (2.8 V6 GAS) | Notes: Availability: Available to Order, New Or Remanufactured: Remanufactured |
| 2002 | Volkswagen | Jetta | GLS (2.8 V6 GAS) | Notes: Availability: Available to Order, New Or Remanufactured: Remanufactured |
| 2002 | Volkswagen | Jetta | GLX (2.8 V6 GAS) | |
| 2003 | Mercedes-Benz | C240 | 4Matic (2.6 V6 GAS) | Engine: 112.916, Valves: 18, Chassis: 203.281, Chassis: 203.081, Notes: Availability: Available to Order, New Or Remanufactured: Remanufactured |
| 2003 | Mercedes-Benz | C240 | Base (2.6 V6 GAS) | Engine: 112.912, Valves: 18, Chassis: 203.261, Chassis: 203.061, Notes: Availability: Available to Order, New Or Remanufactured: Remanufactured |
| 2003 | Mercedes-Benz | C320 | 4Matic (3.2 V6 GAS) | Engine: 112.953, Valves: 18, Chassis: 203.284, Chassis: 203.084, Notes: Availability: Available to Order, New Or Remanufactured: Remanufactured |
| 2003 | Mercedes-Benz | C320 | Base (3.2 V6 GAS) | Engine: 112.946, Valves: 18, Chassis: 203.764, Chassis: 203.264, Chassis: 203.064, Notes: Availability: Available to Order, New Or Remanufactured: Remanufactured |
| 2003 | Mercedes-Benz | CLK320 | Base (3.2 V6 GAS) | Engine: 112.955, Engine: 112.940, Valves: 18, Chassis: 209.365, Notes: Availability: Available to Order, New Or Remanufactured: Remanufactured |
| 1998 | Volkswagen | Beetle | Base (2.0 L4 GAS) | Notes: Availability: Available to Order, New Or Remanufactured: Remanufactured |
| 1998 | Volkswagen | Beetle | TDI (1.9 L4 DIESEL) | Notes: Availability: Available to Order, New Or Remanufactured: Remanufactured |
| 1999 | Volkswagen | Beetle | GL (2.0 L4 GAS) | Notes: Availability: Available to Order, New Or Remanufactured: Remanufactured |
| 1999 | Volkswagen | Beetle | GLS (2.0 L4 GAS) | Notes: Availability: Available to Order, New Or Remanufactured: Remanufactured |
| 1999 | Volkswagen | Beetle | GL (1.9 L4 DIESEL) | Notes: Availability: Available to Order, New Or Remanufactured: Remanufactured |
| 1999 | Volkswagen | Beetle | GLS (1.9 L4 DIESEL) | Notes: Availability: Available to Order, New Or Remanufactured: Remanufactured |
| 1999 | Volkswagen | Beetle | GL (1.8 L4 GAS) | Notes: Availability: Available to Order, New Or Remanufactured: Remanufactured |
| 1999 | Volkswagen | Beetle | GLS (1.8 L4 GAS) | Notes: Availability: Available to Order, New Or Remanufactured: Remanufactured |
| 1999 | Volkswagen | Beetle | GLX (1.8 L4 GAS) | Notes: Availability: Available to Order, New Or Remanufactured: Remanufactured |
| 1999 | Volkswagen | Golf | GTI (2.8 V6 GAS) | Notes: Availability: Available to Order, New Or Remanufactured: Remanufactured |
| 1999 | Volkswagen | Golf | GL (2.0 L4 GAS) | Notes: Availability: Available to Order, New Or Remanufactured: Remanufactured |
| 1999 | Volkswagen | Golf | GLS (2.0 L4 GAS) | Notes: Availability: Available to Order, New Or Remanufactured: Remanufactured |
| 1999 | Volkswagen | Golf | GTI (2.0 L4 GAS) | Notes: Availability: Available to Order, New Or Remanufactured: Remanufactured |
| 1999 | Volkswagen | Golf | Wolfsburg Edition (2.0 L4 GAS) | Notes: Availability: Available to Order, New Or Remanufactured: Remanufactured |
| 1999 | Volkswagen | Golf | GL (1.9 L4 DIESEL) | Notes: Availability: Available to Order, New Or Remanufactured: Remanufactured |
| 1999 | Volkswagen | Golf | TDI (1.9 L4 DIESEL) | Notes: Availability: Available to Order, New Or Remanufactured: Remanufactured |
| 1999 | Volkswagen | Jetta | GLS (2.8 V6 GAS) | Notes: Availability: Available to Order, New Or Remanufactured: Remanufactured |
| 1999 | Volkswagen | Jetta | GLX (2.8 V6 GAS) | Notes: Availability: Available to Order, New Or Remanufactured: Remanufactured |
| 1999 | Volkswagen | Jetta | GL (2.0 L4 GAS) | Notes: Availability: Available to Order, New Or Remanufactured: Remanufactured |
| 1999 | Volkswagen | Jetta | GLS (2.0 L4 GAS) | Notes: Availability: Available to Order, New Or Remanufactured: Remanufactured |
| 1999 | Volkswagen | Jetta | Wolfsburg Edition (2.0 L4 GAS) | Notes: Availability: Available to Order, New Or Remanufactured: Remanufactured |
| 1999 | Volkswagen | Jetta | TDI (1.9 L4 DIESEL) | Notes: Availability: Available to Order, New Or Remanufactured: Remanufactured |
| 2000 | Volkswagen | Beetle | GL (2.0 L4 GAS) | Notes: Availability: Available to Order, New Or Remanufactured: Remanufactured |
| 2000 | Volkswagen | Beetle | GLS (2.0 L4 GAS) | Notes: Availability: Available to Order, New Or Remanufactured: Remanufactured |
| 2000 | Volkswagen | Beetle | GL (1.9 L4 DIESEL) | Notes: Availability: Available to Order, New Or Remanufactured: Remanufactured |
| 2000 | Volkswagen | Beetle | GLS (1.9 L4 DIESEL) | Notes: Availability: Available to Order, New Or Remanufactured: Remanufactured |
| 2000 | Volkswagen | Beetle | GL (1.8 L4 GAS) | Notes: Availability: Available to Order, New Or Remanufactured: Remanufactured |
| 2000 | Volkswagen | Beetle | GLS (1.8 L4 GAS) | Notes: Availability: Available to Order, New Or Remanufactured: Remanufactured |
| 2000 | Volkswagen | Beetle | GLX (1.8 L4 GAS) | Notes: Availability: Available to Order, New Or Remanufactured: Remanufactured |
| 2000 | Volkswagen | Golf | GTI GLX (2.8 V6 GAS) | Notes: Availability: Available to Order, New Or Remanufactured: Remanufactured |
| 2000 | Volkswagen | Golf | GL (2.0 L4 GAS) | Notes: Availability: Available to Order, New Or Remanufactured: Remanufactured |
| 2000 | Volkswagen | Golf | GLS (2.0 L4 GAS) | Notes: Availability: Available to Order, New Or Remanufactured: Remanufactured |
| 2000 | Volkswagen | Golf | GTI GLS (2.0 L4 GAS) | Notes: Availability: Available to Order, New Or Remanufactured: Remanufactured |
| 2000 | Volkswagen | Golf | GL (1.9 L4 DIESEL) | Notes: Availability: Available to Order, New Or Remanufactured: Remanufactured |
| 2000 | Volkswagen | Golf | GLS (1.9 L4 DIESEL) | Notes: Availability: Available to Order, New Or Remanufactured: Remanufactured |
| 2000 | Volkswagen | Golf | GLS (1.8 L4 GAS) | Notes: Availability: Available to Order, New Or Remanufactured: Remanufactured |
| 2000 | Volkswagen | Golf | GTI GLS (1.8 L4 GAS) | Notes: Availability: Available to Order, New Or Remanufactured: Remanufactured |
| 2000 | Volkswagen | Jetta | GLS (2.8 V6 GAS) | Notes: Availability: Available to Order, New Or Remanufactured: Remanufactured |
| 2000 | Volkswagen | Jetta | GLX (2.8 V6 GAS) | Notes: Availability: Available to Order, New Or Remanufactured: Remanufactured |
| 2000 | Volkswagen | Jetta | GL (2.0 L4 GAS) | Notes: Availability: Available to Order, New Or Remanufactured: Remanufactured |
| 2000 | Volkswagen | Jetta | GLS (2.0 L4 GAS) | Notes: Availability: Available to Order, New Or Remanufactured: Remanufactured |
| 2000 | Volkswagen | Jetta | TDI (1.9 L4 DIESEL) | Notes: Availability: Available to Order, New Or Remanufactured: Remanufactured |
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.
















