EAIAftermarket

57091 - Alternator (VAG OE 078903016AB) AUDI A6 C5 Avant (4B5, 4B6) S6 quattro

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Part number

57091

EAI 57091 Alternator

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Also searched as 078903016AB, 078903016AC, 078903018AX, 4Z7903015.

Confirmed fit for 19 vehicles — check your vehicle or browse cross-reference numbers.

57091 Description

The EAI 57091 is a aftermarket Alternator (VAG OE 078903016AB) AUDI A6 C5 Avant (4B5, 4B6) S6 quattro for passenger cars. It's available to order online through Sparein, Dubai's auto parts marketplace, with fast dispatch across the UAE and support for international shipping.

Commonly searched under OE and aftermarket numbers including 078903016AB, 078903016AC, 078903018AX, 4Z7903015, this part is confirmed to fit AUDI A6 C5 Avant, AUDI A6 C5, AUDI A4 B6, AUDI A4 B6 Avant, AUDI A4 B6 Convertible and other vehicle applications. Review the specifications, cross-reference numbers, and fitment tables on this page before you buy.

57091 Specifications

Alternator Charging Current [A]145 A
Supplementary Article/Supplementary Infowith integrated regulator
Pulleyswith belt pulley
Connector/Clampwithout connection for speed sensor
Voltage [V]12 V
Rotation DirectionClockwise rotation
Number of ribs6
Technical Information NumberC72

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Vehicle Fitments

Make sure this part fits your vehicle.

ModelYearsEnginePowerFuelDrive
A6 C5 AvantEstate
S6 quattro
1999–20054.2L ANK, AQJ, BBD340 hp (250 kW)PetrolAWD
A6 C5Saloon
2.5 TDI
2000–20052.5L AKE, BAU, BDH180 hp (132 kW)DieselFWD
A6 C5Saloon
2.5 TDI quattro
2000–20052.5L AKE, BAU, BDH180 hp (132 kW)DieselAWD
A6 C5 AvantEstate
2.5 TDI
2000–20052.5L AKE, BAU, BDH180 hp (132 kW)DieselFWD
A6 C5 AvantEstate
2.5 TDI quattro
2000–20052.5L AKE, BAU, BDH180 hp (132 kW)DieselAWD
A4 B6Saloon
2.5 TDI quattro
2000–20042.5L180 hp (132 kW)DieselAWD
A6 C5Saloon
2.5 TDI
2001–20052.5L AYM155 hp (114 kW)DieselFWD
A6 C5 AvantEstate
2.5 TDI
2001–20052.5L AYM155 hp (114 kW)DieselFWD
A4 B6Saloon
2.5 TDI
2001–20022.5L AYM155 hp (114 kW)DieselFWD
A4 B6 AvantEstate
2.5 TDI quattro
2001–20042.5L AKE, BAU, BDH180 hp (132 kW)DieselAWD
A4 B6 AvantEstate
2.5 TDI
2001–20022.5L AYM155 hp (114 kW)DieselFWD
A4 B6Saloon
2.5 TDI
2002–20042.5L BDG, BFC, BCZ163 hp (120 kW)DieselFWD
A4 B6 AvantEstate
2.5 TDI
2002–20042.5L BDG, BFC, BCZ163 hp (120 kW)DieselFWD
A4 B6 ConvertibleConvertible
2.5 TDI
2002–20052.5L BFC, BCZ, BDG163 hp (120 kW)DieselFWD
A6 C5Saloon
2.5 TDI
2002–20052.5L BFC, BDG, BCZ163 hp (120 kW)DieselFWD
A6 C5 AvantEstate
2.5 TDI
2002–20052.5L BCZ, BFC, BDG163 hp (120 kW)DieselFWD
A4 B6Saloon
3.0
2001–20043.0L BBJ218 hp (160 kW)PetrolFWD
A4 B7Saloon
2.5 TDI
2004–20062.5L BDG163 hp (120 kW)DieselFWD
A4 B7 AvantEstate
2.5 TDI
2004–20062.5L BDG163 hp (120 kW)DieselFWD

Fitment data is a guide — always confirm the part number printed on your existing part before ordering.

Cross-Reference Numbers

Every number below identifies this same part — the code the vehicle maker stamped on it, and the equivalent codes other brands sell it under. Match any of them against your old part to confirm it's the right one.

55 numbers · 28 brands

OE Numbers

VAG
078903016AB078903016AC078903018AX4Z7903015

Aftermarket Cross-References

EAI
57091
BOSCH
01245250870986044470012452500801245255200986048120
EUROTEC
12044470EU12044470
VALEO
2000302542497A2542587437359439392439460746093SG14B01325424972542587B437418442032746893SG14B012
DRI
2111931402
ELSTOCK
283876
CEVAM
4645C4645
RE-EX
50102005
HELLA
8EL0117107118EL738115001
FRIESEN
9044470
EDR
934156
HOLGER CRISTIANSEN
CA1746IR

Alternatives for 57091

Other genuine and aftermarket parts that fit the same application.

Frequently Asked Questions

What is 57091 - Alternator (VAG OE 078903016AB) AUDI A6 C5 Avant (4B5, 4B6) S6 quattro?

57091 is a part number from EAI (aftermarket), listed on Sparein as Alternator (VAG OE 078903016AB) AUDI A6 C5 Avant (4B5, 4B6) S6 quattro.

How much does 57091 cost?

57091 is priced on request. Message us on WhatsApp for a live quote.

Where can I buy 57091 in Dubai or the UAE?

You can order 57091 directly on Sparein, with dispatch dispatch in 20 business days and delivery across Dubai and the wider UAE.

Do you ship 57091 internationally?

Yes — Sparein ships genuine and aftermarket parts, including 57091, outside the UAE. Message us on WhatsApp to confirm shipping cost and delivery time to your country.

How do I compare prices for 57091 across brands?

See the Cross-Reference Numbers section on this page — the same part is listed under OE and aftermarket numbers from other brands, so you can compare listings and prices for an equivalent part.

Are there alternatives to 57091?

Yes — see the Alternatives section on this page for other parts that fit the same application.

57091

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