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Genuine OEM & performance parts — ships to United States

Target · Diagram

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Number 1 marks the part’s position in the exploded view (Audi Q8 (2018-2025)).

Product overview

Genuine OEM Audi Starter-Alternator (Water-Cooled), part number 4N1903028. Fits Audi A6 (2018-2025), Audi A7 Sportback (2018-2025), Audi Q8 (2018-2025), Audi A8 (2017-2025), Audi Q7 (2015-2025). Shown as position 1 in the electrics diagram 745903000. Equipment code: 0K4.

Catalogue entry: Alternator.

Fitted with: 4N0903028G Alternator, 4N0903028J Alternator, 4N0903028N Alternator, 4N0903028P Alternator, 4N0903028PX Alternator, 4N1903028X Alternator, 4N0903028R Alternator, 4N0903028RX Alternator, 4N0903028S Alternator, 4N0903028SX Alternator, 4N0903028F Alternator, 4N0903028H Alternator.

Technical details

Category
Electrical & Wiring
Country of origin
Hungary
Customs (HS) code
85115000
Diagram sheet
Audi 745903000, position 1
ETKA group
9 / 03 (903)
Manufacturer
Audi
Product Type
Genuine new auto parts
Shipping size (L × W × H)
30 × 35 × 28 cm
Shipping weight
13.52 kg

Specifications

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

Equipment codes

  • 0K4
  • T9I

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 road6 numbers since 2017
  1. 4N0903028ENot stocked
    Jul 2017
  2. 4N0903028GNot stocked
    Dec 2017
  3. 4N0903028JNot stocked
    May 2018
  4. 4N0903028NNot stocked
    Mar 2021
  5. 4N0903028PNot stocked
    Sep 2023
  6. 4N1903028This pageCurrent number