2004-2008 Audi Allroad/S4 Crankshaft / Crank Shaft 079105101AC
OEM Part #: 079-105-101-AC (079105101AC)
Actual photo
The exact part you’ll receive — not a stock photo.
$78.99
Used
Donor2006 Audi S4 · 4.2L
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Genuine OEM Used
SKU: 149925
Donor Vehicle: 2006 Audi S4 · 4.2L
2 photos
$78.99
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Genuine OEM Used
SKU: 186241
Donor Vehicle: 2005 Audi S4 · 4.2L
2 photos
$78.99
30-Day Returns
Genuine OEM Used
SKU: 652615
Donor Vehicle: 2008 Audi S4 · 4.2L
5 photos
$79.49
30-Day Returns
- Genuine OEM — real photos
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Audi crankshaft / crank shaft (OEM 079105101AC) – a used genuine part from a salvaged donor. This forged steel crank spins the 4.2L V8 (4163cc or 4172cc) in models like the S4 and Allroad. A bad crankshaft can cause knocking, vibration, or a no-start condition if the main bearings are worn or the reluctor ring is damaged. It converts piston reciprocation into rotational force for the drivetrain.
Specifications
| Fits Vehicle Model | Allroad, S4 |
| Fits Vehicle Make | Audi |
| OEM Part No | 079-105-101-AC (079105101AC) |
| Category | Rotating Assembly |
Compatible Vehicles
Fits 15 vehicle configurations across 1 make, 2004-2008.
Check your specific vehicle before ordering.
This list shows year, make, and model. Some years have multiple trims or
engines that use different parts, and individual listings may have
additional fitment notes (e.g. “with sunroof only”). Review
the full variant list below, or
message us with your VIN
and we’ll confirm the match.
View all 15 vehicle configurations
| Year | Make | Model | Trim | Engine | Note |
|---|---|---|---|---|---|
| 2008 | Audi | S4 | Sedan | 4.2L V8 | |
| 2004 | Audi | S4 | Wagon | 4.2L V8 | |
| 2004 | Audi | S4 | Sedan | 4.2L V8 | |
| 2004 | Audi | Allroad | Quattro Wagon | 4.2L V8 | |
| 2005 | Audi | S4 | Wagon | 4.2L V8 | |
| 2007 | Audi | S4 | Sedan | 4.2L V8 | |
| 2008 | Audi | S4 | Wagon | 4.2L V8 | |
| 2006 | Audi | S4 | Wagon | 4.2L V8 | |
| 2005 | Audi | S4 | Convertible | 4.2L V8 | |
| 2005 | Audi | Allroad | Quattro Wagon | 4.2L V8 | |
| 2006 | Audi | S4 | Convertible | 4.2L V8 | |
| 2006 | Audi | S4 | Sedan | 4.2L V8 | |
| 2004 | Audi | S4 | Convertible | 4.2L V8 | |
| 2005 | Audi | S4 | Sedan | 4.2L V8 | |
| 2007 | Audi | S4 | Wagon | 4.2L V8 |