OEM Workshop Diagram — Alternator For vehicles without start-stop operation For vehicles with recuperation (energy recycling)
Original installation position for OE 03L903803A. The red ring marks where this part installs on the vehicle.
Position 7 on Passat Passat Variant/Santana B7 (Typ 3C) (2012–2015) — Alternator For vehicles without start-stop operation For vehicles with recuperation (energy recycling)
OEM workshop diagram — sourced from manufacturer parts catalogue.
Fits these vehicles
OE 03L903803A is compatible with the following make/model combinations:
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Related cross-references
Cross-reference numbers associated with 03L903803A — including both OEM part numbers and aftermarket alternatives. Each entry links to its own compatibility and pricing page.
OE 03L903803A fits vehicles from VW and other compatible models listed below.
What part type is 03L903803A?
OE 03L903803A is an original equipment reference for a Alternator Regulator. It identifies the exact part specification used by the vehicle manufacturer.
How much does Alternator Regulator 03L903803A cost?
Replacement parts for OE 03L903803A cost between £25.99 and £44.99, depending on brand and specification.
Which brands make Alternator Regulator 03L903803A?
AS-PL, BOSCH all offer compatible replacements for OE 03L903803A.
Is 03L903803A original equipment or aftermarket?
OE 03L903803A is an original equipment reference assigned by the vehicle manufacturer. The parts listed below are quality-matched aftermarket and OEM-equivalent replacements that meet the same specification.
What is OE number 03L903803A?
OE (Original Equipment) number 03L903803A is a manufacturer's reference code for Alternator Regulator used to identify the exact specification of a part fitted during vehicle production. By cross-referencing this OE number, you can find 2 compatible aftermarket brands that match the same specification — often at a lower price than the original. All parts listed above are verified to match OE 03L903803A.
