Genuine Audi OEM TDI 04L903803 OEM - Audi (04L-903-803)
- 4l903803
Genuine Audi OEM TDI 04L903803 OEM - Audi (04L-903-803)
- 4l903803
- Audi
- 04L-903-803
Details
- Brand:
- SKU:
04L-903-803
- Description:
The Genuine Audi Alternator Voltage Regulator 04L903803 is the factory-specified electrical control component that manages charging voltage output from the alternator to the vehicle battery and electrical system. This OEM regulator ensures stable charging performance, protects onboard electronics, and maintains the correct voltage range as engineered by Audi for reliable vehicle operation.
Features & Benefits
-
OEM Part Number: 04L 903 803
-
Genuine Audi alternator voltage regulator
-
Maintains correct alternator output and charging voltage
-
Helps protect battery and electrical modules from over- or under-charging
-
OEM-grade electronics and heat-resistant construction
-
Direct-fit replacement—designed to integrate with the specified alternator assembly
-
Supports long-term system reliability and electrical stability
Compatible Applications
-
Used in select Audi models equipped with alternators requiring part number 04L903803
-
VIN confirmation recommended to ensure correct alternator version and charging system configuration
Why Choose Genuine OEM?
Aftermarket voltage regulators may have incorrect calibration, lower-grade internal components, or unstable output, which can cause charging faults, warning messages, or electrical damage. The Genuine Audi 04L903803 Voltage Regulator ensures factory-correct charging behavior, proper system protection, and dependable long-term performance.
-
California Proposition 65
WARNING: Cancer and reproductive harm - www.P65Warnings.ca.gov - MSRP: $204.99
- Discount: $66.01 (32.2% off)
- Sale Price: $138.98
- Audi
- 04L-903-803
Details
- Brand:
- SKU:
04L-903-803
- Description:
The Genuine Audi Alternator Voltage Regulator 04L903803 is the factory-specified electrical control component that manages charging voltage output from the alternator to the vehicle battery and electrical system. This OEM regulator ensures stable charging performance, protects onboard electronics, and maintains the correct voltage range as engineered by Audi for reliable vehicle operation.
Features & Benefits
-
OEM Part Number: 04L 903 803
-
Genuine Audi alternator voltage regulator
-
Maintains correct alternator output and charging voltage
-
Helps protect battery and electrical modules from over- or under-charging
-
OEM-grade electronics and heat-resistant construction
-
Direct-fit replacement—designed to integrate with the specified alternator assembly
-
Supports long-term system reliability and electrical stability
Compatible Applications
-
Used in select Audi models equipped with alternators requiring part number 04L903803
-
VIN confirmation recommended to ensure correct alternator version and charging system configuration
Why Choose Genuine OEM?
Aftermarket voltage regulators may have incorrect calibration, lower-grade internal components, or unstable output, which can cause charging faults, warning messages, or electrical damage. The Genuine Audi 04L903803 Voltage Regulator ensures factory-correct charging behavior, proper system protection, and dependable long-term performance.
-
California Proposition 65
WARNING: Cancer and reproductive harm - www.P65Warnings.ca.gov Also Purchased
Vehicle Fitment
| Year | Make | Model | Body & Trim | Engine & Transmission |
|---|
AUDI HENDERSON
Welcome to Audi OEM Parts, your number one source for all things Audi. We're dedicated to providing you the very best parts and accessories, with an emphasis on OEM fitment.
You can order your Genuine Audi OEM TDI 04L903803 OEM (4l903803) right now and have it delivered to your home or work in just a matter of days. Guaranteed to fit your vehicle and we also offer a VIN verification system at checkout.
If you would like to browse your vehicle's specific OEM parts catalog, you can do so by first selecting what model you drive.
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Audi
AudiOEMParts.com is operated by Audi Henderson, an authorized Audi dealership and part of the Findlay Automotive Group in Henderson, NV. We stock genuine Audi OEM parts and accessories for every model — A3, A4, A5, A6, A7, A8, Q3, Q5, Q7, Q8, TT, R8, e-tron, and beyond.
Every part ships directly from factory inventory with full Audi manufacturer warranty. No aftermarket substitutes. No compatibility guessing. Exact fit, every time.
Order online and ship nationwide. Same parts Audi technicians use, at authorized dealer pricing, with the speed of online ordering. Questions? Call 888-448-6114 or email [email protected].