1998-2005 Audi A6/Allroad/RS6/S6 Blower Motor / Fan 4B1820021B
OEM Part #: 4B1-820-021-B (4B1820021B)
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The exact part you’ll receive — not a stock photo.
$22.11
Used
Donor2001 Audi ALLROAD · 2.7L
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Genuine OEM Used
SKU: 688283
Donor Vehicle: 2001 Audi ALLROAD · 2.7L
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$22.11
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Used Audi Blower Motor / Fan, OEM part number 4B1820021B, also supersedes 4B1820021C. This genuine component moves air through the HVAC system to regulate cabin temperature and airflow. When the blower motor fails, you may notice weak or no air from the vents, unusual noises, or intermittent fan operation. It was removed from a donor Audi A6, S6, RS6, Allroad, or A6 Quattro with 2.7L-4.2L V6 or V8 engines.
Specifications
| Fits Vehicle Model | A6, Allroad, RS6, S6 |
| Fits Vehicle Make | Audi |
| OEM Part No | 4B1-820-021-B (4B1820021B) |
| Compatible OEM Part No | 4B1-820-021-C |
| Category | HVAC / Climate Control |
Compatible Vehicles
Fits 40 vehicle configurations across 1 make, 1998-2005.
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 40 vehicle configurations — 3 with fitment notes
| Year | Make | Model | Trim | Engine | Note |
|---|---|---|---|---|---|
| 1998 | Audi | A6 | Quattro Sedan | 2.8L V6 | |
| 1998 | Audi | A6 | Sedan | 2.8L V6 | |
| 2002 | Audi | A6 | Quattro Wagon | 3.0L V6 | |
| 2003 | Audi | A6 | Quattro Sedan | 3.0L V6 | |
| 2003 | Audi | A6 | Quattro Wagon | 3.0L V6 | |
| 2002 | Audi | A6 | Sedan | 3.0L V6 | |
| 2004 | Audi | A6 | Sedan | 3.0L V6 | |
| 2004 | Audi | A6 | Quattro Wagon | 3.0L V6 | |
| 2003 | Audi | A6 | Sedan | 3.0L V6 | |
| 2004 | Audi | A6 | Quattro Sedan | 3.0L V6 | |
| 2005 | Audi | Allroad | Quattro Wagon | 2.7L V6 Turbo | |
| 2002 | Audi | A6 | Quattro Sedan | 3.0L V6 | |
| 2003 | Audi | S6 | Wagon | 4.2L V8 | |
| 2002 | Audi | Allroad | Quattro Wagon | 2.7L V6 Turbo | |
| 2003 | Audi | RS6 | Sedan | 4.2L V8 Turbo | |
| 2000 | Audi | A6 | Sedan | 2.8L V6 | |
| 2001 | Audi | A6 | Quattro Sedan | 4.2L V8 | |
| 2001 | Audi | Allroad | Quattro Wagon | 2.7L V6 Turbo | |
| 2003 | Audi | A6 | Quattro Sedan | 2.7L V6 Turbo | |
| 2000 | Audi | A6 | Quattro Sedan | 4.2L V8 | |
| 2003 | Audi | Allroad | Quattro Wagon | 2.7L V6 Turbo | |
| 2002 | Audi | S6 | Wagon | 4.2L V8 | |
| 2002 | Audi | A6 | Quattro Sedan | 2.7L V6 Turbo | |
| 2004 | Audi | A6 | Quattro Sedan | 2.7L V6 Turbo | |
| 2002 | Audi | A6 | Quattro Sedan | 4.2L V8 | |
| 2004 | Audi | Allroad | Quattro Wagon | 2.7L V6 Turbo | |
| 2004 | Audi | A6 | Quattro Sedan | 4.2L V8 | |
| 2005 | Audi | Allroad | Quattro Wagon | 4.2L V8 | |
| 2000 | Audi | A6 | Quattro Wagon | 2.8L V6 | |
| 2003 | Audi | A6 | Quattro Sedan | 4.2L V8 | |
| 1999 | Audi | A6 | Sedan | 2.8L V6 | For Vehicles Where Last 6 Digits of VIN Number are Greater Than 025001 |
| 1999 | Audi | A6 | Quattro Wagon | 2.8L V6 | For Vehicles Where Last 6 Digits of VIN Number are Greater Than 025001 |
| 2001 | Audi | A6 | Quattro Wagon | 2.8L V6 | |
| 2000 | Audi | A6 | Quattro Sedan | 2.8L V6 | |
| 2001 | Audi | A6 | Quattro Sedan | 2.8L V6 | |
| 2004 | Audi | Allroad | Quattro Wagon | 4.2L V8 | |
| 1999 | Audi | A6 | Quattro Sedan | 2.8L V6 | For Vehicles Where Last 6 Digits of VIN Number are Greater Than 025001 |
| 2001 | Audi | A6 | Sedan | 2.8L V6 | |
| 2001 | Audi | A6 | Quattro Sedan | 2.7L V6 Turbo | |
| 2000 | Audi | A6 | Quattro Sedan | 2.7L V6 Turbo |