03L903803F, Voltage Regulator Manufacturer: VAG OEM part number: 03L903803F MSRP: $156.00 Price: $62.67 Availability: Available in 1 shop. See more part details Add to cart	Please help our community — upload your photos of 03L903803F.

About this 03L903803F voltage regulator

This part is a voltage regulator for Volkswagen Group cars. It fits for Volkswagen Group vehicles which were sold in the U.S., Europe, Mexico, China and other markets. It's a genuine VAG part with an OEM part number 03L903803F, part of alternator regulators.

This voltage regulator has a standard 1 year or 12,000 miles (whichever occurs first) VAG warranty on new and factory-remanufactured replacement parts and accessories.

In spite of higher price of genuine parts buying VAG (VW) genuine voltage regulator will be a smart decision, because you will be absolutely sure that VAG (VW) genuine voltage regulator will serve you longer and will provide maximum safety and performance.

Spare Part Information

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Last update: Dec 23, 2025.

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