VAG Voltage Regulator 03L903803B

This voltage regulator, part number 03L903803B from VAG, is a critical component of your vehicle's charging system. It plays a vital role in maintaining the correct voltage output from the alternator, preventing overcharging or undercharging of the battery. A properly functioning voltage regulator is essential for the longevity of your battery and the overall health of your vehicle's electrical system. Symptoms of a failing regulator can include dimming headlights, a battery warning light on the dashboard, or electrical components malfunctioning. Crafted to meet VAG's stringent quality standards, this regulator offers a direct fit and reliable performance. Trust in genuine VAG parts to keep your vehicle running smoothly and efficiently.

• Genuine VAG part for guaranteed compatibility and quality.
• Part Number: 03L903803B
• Regulates alternator output to protect battery and electrical system.
• Ensures consistent and stable voltage supply.
• Durable construction for long service life.
• Direct replacement for OE part.