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Genuine OEM & performance parts — ships to United States

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Number 1 marks the part’s position in this exploded view (Volkswagen Tiguan 2.0 4Motion (2016-2024)).

Other diagrams in the gallery may use a different number for the same part.

Product overview

Genuine OEM Volkswagen Alternator, part number 04L903021L. This component generates electrical power for the vehicle's systems, charging the battery and supplying current to lights, ignition, and accessories. It is typically mounted to the engine block. This unit weighs 7.61 kg. Genuine OEM alternators ensure precise voltage regulation and long-term reliability, crucial for the vehicle's electrical health.

Catalogue entry: ALTERNATOR VALEO.

Fitted with: 04E903021M ALTERNATOR, 04E903021MX ALTERNATOR, 04E903021N ALTERNATOR, 04E903021NX ALTERNATOR, 04E903015 ALTERNATOR, 04E903015X ALTERNATOR, 04E903015A ALTERNATOR, 04E903015AX ALTERNATOR, 03L903023J ALTERNATOR, 03L903023JX ALTERNATOR, 03L903023K ALTERNATOR, 03L903023KX ALTERNATOR.

Technical details

Category
Electrical & Wiring
Customs (HS) code
85115000
Manufacturer
Volkswagen
Product Type
Genuine new auto parts
Shipping size (L × W × H)
19.2 × 16.5 × 16 cm
Shipping weight
7.61 kg

Specifications

As recorded in the manufacturer’s parts catalogue for this part number.

Equipment codes

  • 7MM
  • 7MW
  • TR1

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

Replaces older part numbers

This is the current manufacturer number. Older numbers on this road are no longer supplied.

Supersession roadoldest to newest
  1. 04L903021LXSuperseded
    Jul 2025
  2. 04L903021LThis pageCurrent number