Audi A6/A7/A8/RS7/S6/S7/S8 Blower Motor / Fan Front 4H1820021B

OEM Part #: 4H1-820-021-B (4H1820021B)

This page covers one exact OEM part number. Every unit we stocked has sold.

We may be able to get another

Used OEM parts are one-of-a-kind. We sometimes get another when we dismantle a matching vehicle, but we can’t say when — browse what’s in stock now:

  • Genuine OEM — real photos
  • 30-day returns on eligible parts
  • eBay Top Rated · 100,000+ positive ratings
  • Ships from our own indoor warehouse

Replace your malfunctioning blower motor with this authentic OEM part, numbered 4H1820021B, specifically designed for front installation in various Audi models, including the 2018 Audi A6, A7, A8, S6, S7, S8, RS7, and their compatible 2016-2017 counterparts. This blower motor is crucial for maintaining optimal cabin airflow and climate control, ensuring a comfortable driving experience. Common issues include decreased airflow, unusual noises, and complete failure, often due to wear or damage. This part is also referred to as a fan & motor, and is compatible with various engine types, including 2.0L L4 and 4.0L V8 configurations. Trust in genuine OEM quality for reliable performance in your vehicle.

Specifications

Specifications for Blower Motor / Fan 4H1820021B
Fits Vehicle ModelA6, A7, A8, RS7, S6, S7, S8
Fits Vehicle MakeAudi
OEM Part No4H1-820-021-B (4H1820021B)
Compatible OEM Part No 4H1-820-021-A, 4H1-820-021
SideFront
CategoryHVAC / Climate Control

Compatible Vehicles

Fits 73 vehicle configurations across 1 make, 2011-2017.

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.

Audi

  • A6 2012-2017 · 20 variants 7 with notes
  • A7 2012-2017 · 7 variants 3 with notes
  • A8 2011-2017 · 28 variants 12 with notes
  • RS7 2014-2017 · 4 variants 4 with notes
  • S6 2013-2017 · 5 variants 2 with notes
  • S7 2013-2017 · 4 variants 2 with notes
  • S8 2013-2017 · 5 variants 3 with notes
View all 73 vehicle configurations 33 with fitment notes
Full vehicle fitment list for Blower Motor / Fan 4H1820021B
Year Make Model Trim Engine Note
2011 Audi A8 Quattro Sedan 4.2L V8
2011 Audi A8 Quattro L Sedan 4.2L V8
2012 Audi A6 Sedan 2.0L l4 Turbo
2012 Audi A6 Quattro Sedan 3.0L V6 Supercharged
2012 Audi A7 Quattro Hatchback 3.0L V6 Supercharged
2012 Audi A8 Quattro Sedan 4.2L V8
2012 Audi A8 Quattro L Sedan 4.2L V8
2012 Audi A8 Quattro L Sedan 6.3L W12
2013 Audi A6 Sedan 2.0L l4 Turbo
2013 Audi A6 Quattro Sedan 2.0L l4 Turbo
2013 Audi A6 Quattro Sedan 3.0L V6 Supercharged
2013 Audi A7 Quattro Hatchback 3.0L V6 Supercharged
2013 Audi A8 Quattro Sedan 3.0L V6 Supercharged
2013 Audi A8 Quattro Sedan 4.0L V8 Turbo
2013 Audi A8 Quattro L Sedan 3.0L V6 Supercharged
2013 Audi A8 Quattro L Sedan 4.0L V8 Turbo
2013 Audi A8 Quattro L Sedan 6.3L W12
2013 Audi S6 Sedan 4.0L V8 Turbo
2013 Audi S7 Hatchback 4.0L V8 Turbo
2013 Audi S8 Sedan 4.0L V8 Turbo
2014 Audi A6 Sedan 2.0L l4 Turbo
2014 Audi A6 Quattro Sedan 2.0L l4 Turbo
2014 Audi A6 Quattro Sedan 3.0L V6 Supercharged
2014 Audi A6 Quattro Sedan 3.0L V6 Diesel Turbo
2014 Audi A7 Quattro Hatchback 3.0L V6 Supercharged
2014 Audi A7 Quattro Hatchback 3.0L V6 Diesel Turbo
2014 Audi A8 Quattro Sedan 3.0L V6 Supercharged
2014 Audi A8 Quattro Sedan 4.0L V8 Turbo
2014 Audi A8 Quattro L Sedan 3.0L V6 Supercharged
2014 Audi A8 Quattro L Sedan 4.0L V8 Turbo
2014 Audi A8 Quattro L Sedan 3.0L V6 Diesel Turbo
2014 Audi A8 Quattro L Sedan 6.3L W12
2014 Audi RS7 Hatchback 4.0L V8 Turbo For Vehicles With Production date Up To 07/25/16
2014 Audi S6 Sedan 4.0L V8 Turbo
2014 Audi S7 Hatchback 4.0L V8 Turbo
2014 Audi S8 Sedan 4.0L V8 Turbo
2015 Audi A6 Sedan 2.0L l4 Turbo
2015 Audi A6 Quattro Sedan 2.0L l4 Turbo
2015 Audi A6 Quattro Sedan 3.0L V6 Supercharged
2015 Audi A6 Quattro Sedan 3.0L V6 Diesel Turbo
2015 Audi A8 Quattro Sedan 3.0L V6 Supercharged For Vehicles With Production date Up To 07/25/16
2015 Audi A8 Quattro Sedan 4.0L V8 Turbo For Vehicles With Production date Up To 07/25/16
2015 Audi A8 Quattro L Sedan 3.0L V6 Supercharged For Vehicles With Production date Up To 07/25/16
2015 Audi A8 Quattro L Sedan 4.0L V8 Turbo For Vehicles With Production date Up To 07/25/16
2015 Audi A8 Quattro L Sedan 3.0L V6 Diesel Turbo For Vehicles With Production date Up To 07/25/16
2015 Audi A8 Quattro L Sedan 6.3L W12 For Vehicles With Production date Up To 07/25/16
2015 Audi RS7 Hatchback 4.0L V8 Turbo For Vehicles With Production date Up To 07/25/16
2015 Audi S6 Sedan 4.0L V8 Turbo
2015 Audi S8 Sedan 4.0L V8 Turbo For Vehicles With Production date Up To 07/25/16
2016 Audi A6 Sedan 2.0L l4 Turbo For Vehicles With Production date Up To 07/25/16
2016 Audi A6 Quattro Sedan 2.0L l4 Turbo For Vehicles With Production date Up To 07/25/16
2016 Audi A6 Quattro Sedan 3.0L V6 Supercharged For Vehicles With Production date Up To 07/25/16
2016 Audi A6 Quattro Sedan 3.0L V6 Diesel Turbo For Vehicles With Production date Up To 07/25/16
2016 Audi A7 Quattro Hatchback 3.0L V6 Supercharged For Vehicles With Production date Up To 07/25/16
2016 Audi A7 Quattro Hatchback 3.0L V6 Diesel Turbo For Vehicles With Production date Up To 07/25/16
2016 Audi A8 Quattro L Sedan 3.0L V6 Supercharged For Vehicles With Production date Up To 07/25/16
2016 Audi A8 Quattro L Sedan 4.0L V8 Turbo For Vehicles With Production date Up To 07/25/16
2016 Audi A8 Quattro L Sedan 3.0L V6 Diesel Turbo For Vehicles With Production date Up To 07/25/16
2016 Audi A8 Quattro L Sedan 6.3L W12 For Vehicles With Production date Up To 07/25/16
2016 Audi RS7 Hatchback 4.0L V8 Turbo For Vehicles With Production date Up To 07/25/16
2016 Audi S6 Sedan 4.0L V8 Turbo For Vehicles With Production date Up To 07/25/16
2016 Audi S7 Hatchback 4.0L V8 Turbo For Vehicles With Production date Up To 07/25/16
2016 Audi S8 Sedan 4.0L V8 Turbo For Vehicles With Production date Up To 07/25/16
2017 Audi A6 Sedan 2.0L l4 Turbo For Vehicles With Production date Up To 07/25/16
2017 Audi A6 Quattro Sedan 3.0L V6 Supercharged For Vehicles With Production date Up To 07/25/16
2017 Audi A6 Quattro Sedan 2.0L l4 Turbo For Vehicles With Production date Up To 07/25/16
2017 Audi A7 Quattro Hatchback 3.0L V6 Supercharged For Vehicles With Production date Up To 07/25/16
2017 Audi A8 Quattro L Sedan 3.0L V6 Supercharged For Vehicles With Production date Up To 07/25/16
2017 Audi A8 Quattro L Sedan 4.0L V8 Turbo For Vehicles With Production date Up To 07/25/16
2017 Audi RS7 Hatchback 4.0L V8 Turbo For Vehicles With Production date Up To 07/25/16
2017 Audi S6 Sedan 4.0L V8 Turbo For Vehicles With Production date Up To 07/25/16
2017 Audi S7 Hatchback 4.0L V8 Turbo For Vehicles With Production date Up To 07/25/16
2017 Audi S8 Sedan 4.0L V8 Turbo For Vehicles With Production date Up To 07/25/16

Ask a parts specialist

Asking about: Blower Motor / Fan 4H1820021B · OEM #4H1820021B