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Number 6 marks the part’s position in this exploded view (SEAT Mii reference (2011-2019)).
Other diagrams in the gallery may use a different number for the same part.
Product overview
Genuine OEM Volkswagen Voltage Regulator, part number 04C903803B. This voltage regulator is a key component of the charging system, responsible for controlling the output voltage of the alternator to ensure the battery is properly charged and electrical systems receive stable power. It is integrated with the alternator assembly. Genuine OEM voltage regulators have precise calibration for optimal charging performance and longevity.
Catalogue entry: REGULATOR BOSCH.
Technical details
- Category
- Electrical & Wiring
- Country of origin
- Germany
- Customs (HS) code
- 85118000
- Manufacturer
- Volkswagen
- Product Type
- Genuine new auto parts
- Shipping size (L × W × H)
- 8.5 × 7 × 3.4 cm
- Shipping weight
- 0.1 kg
Specifications
As recorded in the manufacturer’s parts catalogue for this part number.
Equipment codes
- 7L6
PR codes identify the factory option a part belongs to; your vehicle’s are listed on the data sticker in the boot well or service booklet.
Why buy from WW Spares?
- ✓ Genuine OEM inventory sourced directly from factory networks
- ✓ Fitment support from workshop-seasoned parts specialists
- ✓ Global logistics with customs-ready documentation
Need help confirming compatibility? Talk to a specialist
