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Alternator WAI 23831N
Power generator WAI 23831N. Fits 8 car models (AUDI), 2007–2019. Replaces 6 OE numbers.

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Specification. From the manufacturer's data.
- Brand
- WAI
- Category
- Power generator
- Voltage [V]
- 12 V
- Alternator Charging Current [A]
- 140 A
- Manufacturer Restriction
- Valeo
- Length [cm]
- 26.01 cm
- Width [cm]
- 22.5 cm
- Height [cm]
- 19.99 cm
- Weight [kg]
- 6.94 kg
- MPN
- 23831N
- SKU
- 4627-23831N
- GTIN / EAN
- 0193641281300
- What's included
- 1x Power generator
OE numbers. The originals this part replaces.
Numbers the vehicle makers and other brands use for this part. Only a confirmed OE number links to its own page; other brands' equivalents are under “Equivalent products”.
- VAG03G903016B
- VAG03G903016BX
- VAG03G903016E
- VAG03G903016EX
- VAG03G903016G
- VAG03G903016GX
Where this part fits
Original-fit position for OE 03G903016EX. The red ring marks where this part installs on the vehicle.

Equivalent products. They fit in the same place.
2 available · 11 numbers In stock from £173.99 to £314.99.
Only 4 left!
All 11 cross-reference numbers
Numbers other makers give for this part. They are aftermarket numbers, not the vehicle maker's OE numbers; a linked number is one we sell.
- APEC AAL2561
- AS-PL A3299
- AUTOELECTRO AEK3185
- BOSCH 1986A00896
- BV PSH 305.944.140.004
- ELSTOCK 28-5797
- HELLA 8EL012 241-121
- LUCAS LRA03185
- NAPA NAL2561
- VALEO 439642
- VALEO TG14C020
Compatible cars. AUDI, 8 models.
Matched from the manufacturer's data. Production years 2007–2019.
| Model | Engines | Years |
|---|---|---|
| AUDI8 models | ||
| AUDI A4 Allroad B8 (8KH) | 2.0 TDI quattro | 2009–2017 |
| AUDI A4 B8 (8K2) | 2.0 TDI, 2.0 TDI quattro | 2007–2017 |
| AUDI A4 B8 Avant (8K5) | 2.0 TDI, 2.0 TDI quattro | 2007–2017 |
| AUDI A5 (8T3) | 2.0 TDI, 2.0 TDI quattro | 2007–2017 |
| AUDI A5 Convertible (8F7) | 2.0 TDI | 2009–2017 |
| AUDI A5 Sportback (8TA) | 2.0 TDI, 2.0 TDI quattro | 2007–2017 |
AUDI2 more models
| Model | Engines | Years |
|---|---|---|
| AUDI Q5 (8RB) | 2.0 TDI, 2.0 TDI quattro | 2008–2019 |
| AUDI Q5 Van (8RB) | 2.0 TDI, 2.0 TDI quattro | 2008–2017 |
Always verify compatibility with your vehicle before ordering.
More about this part. Related categories and similar parts.
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Common OE numbers for this part
Common original equipment numbers linked to replacement-part pages.
Related Guides
Delivery and returns. No small print.
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2-year warranty against manufacturing defects on all parts, counted from delivery. 14-day money-back guarantee if the part doesn't fit your vehicle. Delivery terms
We ship from the EU to 201 countries. Deliveries within the EU carry no customs charges; outside the UK and the EU, the destination country may charge import duties and taxes, paid on delivery. Delivery times and prices by country
Delivery times to EU countries (working days)
Austria 4–7, Belgium 4–7, Bulgaria 5–9, Croatia 5–9, Cyprus 4–19, Czechia 4–7, Denmark 4–8, Estonia 3–4, Finland 6–10, France 5–8, Germany 3–5, Greece 6–10, Hungary 4–7, Ireland 5–9, Italy 5–9, Latvia 2–3, Lithuania 2–3, Luxembourg 4–7, Malta 4–9, Netherlands 4–7, Poland 3–6, Portugal 6–10, Romania 4–8, Slovakia 4–7, Slovenia 4–8, Spain 6–9, Sweden 5–10
