Audi / Porsche Blower Motor Resistor 8T0820521G
OEM Part #: 8T0-820-521-G (8T0820521G)
Porsche Part #: PAB820521
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The OEM blower motor resistor, part number 8T0820521G, is a critical component in the climate control system of various Audi and Porsche models. This genuine factory-original part maintains a consistent fan speed to ensure optimal cabin temperature and airflow. It's compatible with the Audi A4, A4 Quattro, A5, A5 Quattro, Q5, S4, S5, as well as the Porsche Macan from 2013 to 2018. Located near the blower motor, this part regulates voltage and helps prevent issues such as fluctuating fan speeds or complete fan failure. A worn or damaged resistor can lead to inadequate heating or cooling, impacting overall comfort. It’s imperative to use authentic OEM parts like the 8T0820521G for reliable performance and longevity.
Specifications
| Fits Vehicle Model | A4, A5, allroad, Macan, Q5, RS5, S4, S5, SQ5 |
| Fits Vehicle Make | Audi, Porsche |
| OEM Part No | 8T0-820-521-G (8T0820521G) |
| Porsche Part No | PAB820521 |
| Compatible OEM Part No | 8T0-820-521, 8T0-820-521-E, 8T0-820-521-A, 8T0-820-521-F, PAB820521 |
| Category | HVAC / Climate Control |
Compatible Vehicles
Fits 116 vehicle configurations across 2 makes, 2012-2026.
View all 116 vehicle configurations — 24 with fitment notes
| Year | Make | Model | Trim | Engine | Note |
|---|---|---|---|---|---|
| 2012 | Audi | A5 | Convertible | 2.0L l4 Turbo | |
| 2012 | Audi | A5 | Quattro Coupe | 2.0L l4 Turbo | |
| 2012 | Audi | A5 | Quattro Convertible | 2.0L l4 Turbo | |
| 2013 | Audi | A4 | Sedan | 2.0L l4 Turbo | For Vehicles With Production date Up To 01/14/13 |
| 2013 | Audi | A4 | Quattro Sedan | 2.0L l4 Turbo | For Vehicles With Production date Up To 01/14/13 |
| 2013 | Audi | A5 | Convertible | 2.0L l4 Turbo | For Vehicles With Production date Up To 01/14/13 |
| 2013 | Audi | A5 | Quattro Coupe | 2.0L l4 Turbo | For Vehicles With Production date Up To 01/14/13 |
| 2013 | Audi | A5 | Quattro Convertible | 2.0L l4 Turbo | For Vehicles With Production date Up To 01/14/13 |
| 2013 | Audi | allroad | Wagon | 2.0L l4 Turbo | |
| 2013 | Audi | Q5 | SUV | 2.0L l4 Turbo | For Vehicles With Production date Up To 01/14/13 |
| 2013 | Audi | Q5 | SUV | 3.0L V6 Supercharged | For Vehicles With Production date Up To 01/14/13 |
| 2013 | Audi | RS5 | Convertible | 4.2L V8 | For Vehicles With Production date Up To 01/14/13 |
| 2013 | Audi | RS5 | Coupe | 4.2L V8 | |
| 2013 | Audi | S4 | Sedan | 3.0L V6 Supercharged | For Vehicles With Production date Up To 01/14/13 |
| 2013 | Audi | S5 | Coupe | 3.0L V6 Supercharged | For Vehicles With Production date Up To 01/14/13 |
| 2013 | Audi | S5 | Convertible | 3.0L V6 Supercharged | For Vehicles With Production date Up To 01/14/13 |
| 2014 | Audi | A4 | Sedan | 2.0L l4 Turbo | For Vehicles With Production date Up To 01/14/13 |
| 2014 | Audi | A4 | Quattro Sedan | 2.0L l4 Turbo | For Vehicles With Production date Up To 01/14/13 |
| 2014 | Audi | A5 | Convertible | 2.0L l4 Turbo | For Vehicles With Production date Up To 01/14/13 |
| 2014 | Audi | A5 | Quattro Convertible | 2.0L l4 Turbo | For Vehicles With Production date Up To 01/14/13 |
| 2014 | Audi | A5 | Quattro Coupe | 2.0L l4 Turbo | For Vehicles With Production date Up To 01/14/13 |
| 2014 | Audi | allroad | Wagon | 2.0L l4 Turbo | |
| 2014 | Audi | Q5 | SUV | 2.0L l4 Turbo | For Vehicles With Production date Up To 01/14/13 |
| 2014 | Audi | Q5 | SUV | 3.0L V6 Supercharged | For Vehicles With Production date Up To 01/14/13 |
| 2014 | Audi | Q5 | SUV | 3.0L V6 Diesel Turbo | For Vehicles With Production date Up To 01/14/13 |
| 2014 | Audi | RS5 | Coupe | 4.2L V8 | |
| 2014 | Audi | RS5 | Convertible | 4.2L V8 | For Vehicles With Production date Up To 01/14/13 |
| 2014 | Audi | S4 | Sedan | 3.0L V6 Supercharged | For Vehicles With Production date Up To 01/14/13 |
| 2014 | Audi | S5 | Convertible | 3.0L V6 Supercharged | For Vehicles With Production date Up To 01/14/13 |
| 2014 | Audi | S5 | Coupe | 3.0L V6 Supercharged | For Vehicles With Production date Up To 01/14/13 |
| 2014 | Audi | SQ5 | SUV | 3.0L V6 Supercharged | For Vehicles With Production date Up To 01/14/13 |
| 2015 | Audi | A4 | Sedan | 2.0L l4 Turbo | |
| 2015 | Audi | A4 | Quattro Sedan | 2.0L l4 Turbo | |
| 2015 | Audi | A5 | Quattro Convertible | 2.0L l4 Turbo | |
| 2015 | Audi | A5 | Quattro Coupe | 2.0L l4 Turbo | |
| 2015 | Audi | allroad | Wagon | 2.0L l4 Turbo | |
| 2015 | Audi | Q5 | SUV | 2.0L l4 Turbo | |
| 2015 | Audi | Q5 | SUV | 3.0L V6 Supercharged | |
| 2015 | Audi | Q5 | SUV | 3.0L V6 Diesel Turbo | |
| 2015 | Audi | RS5 | Coupe | 4.2L V8 | |
| 2015 | Audi | RS5 | Convertible | 4.2L V8 | |
| 2015 | Audi | S4 | Sedan | 3.0L V6 Supercharged | |
| 2015 | Audi | S5 | Convertible | 3.0L V6 Supercharged | |
| 2015 | Audi | S5 | Coupe | 3.0L V6 Supercharged | |
| 2015 | Audi | SQ5 | SUV | 3.0L V6 Supercharged | |
| 2016 | Audi | A4 | Sedan | 2.0L l4 Turbo | |
| 2016 | Audi | A4 | Quattro Sedan | 2.0L l4 Turbo | |
| 2016 | Audi | A5 | Quattro Convertible | 2.0L l4 Turbo | |
| 2016 | Audi | A5 | Quattro Coupe | 2.0L l4 Turbo | |
| 2016 | Audi | allroad | Wagon | 2.0L l4 Turbo | |
| 2016 | Audi | Q5 | SUV | 2.0L l4 Turbo | |
| 2016 | Audi | Q5 | SUV | 3.0L V6 Supercharged | |
| 2016 | Audi | Q5 | SUV | 3.0L V6 Diesel Turbo | |
| 2016 | Audi | S4 | Sedan | 3.0L V6 Supercharged | |
| 2016 | Audi | S5 | Convertible | 3.0L V6 Supercharged | |
| 2016 | Audi | S5 | Coupe | 3.0L V6 Supercharged | |
| 2016 | Audi | SQ5 | SUV | 3.0L V6 Supercharged | |
| 2017 | Audi | A5 | Quattro Convertible | 2.0L l4 Turbo | |
| 2017 | Audi | A5 | Quattro Coupe | 2.0L l4 Turbo | |
| 2017 | Audi | Q5 | SUV | 2.0L l4 Turbo | |
| 2017 | Audi | Q5 | SUV | 3.0L V6 Supercharged | |
| 2017 | Audi | S5 | Convertible | 3.0L V6 Supercharged | |
| 2017 | Audi | S5 | Coupe | 3.0L V6 Supercharged | |
| 2017 | Audi | SQ5 | SUV | 3.0L V6 Supercharged | |
| 2015 | Porsche | Macan | S SUV | 3.0L V6 Turbo | |
| 2015 | Porsche | Macan | Turbo SUV | 3.6L V6 Turbo | |
| 2016 | Porsche | Macan | S SUV | 3.0L V6 Turbo | |
| 2016 | Porsche | Macan | Turbo SUV | 3.6L V6 Turbo | |
| 2017 | Porsche | Macan | SUV | 2.0L l4 Turbo | |
| 2017 | Porsche | Macan | GTS SUV | 3.0L V6 Turbo | |
| 2017 | Porsche | Macan | S SUV | 3.0L V6 Turbo | |
| 2017 | Porsche | Macan | Turbo SUV | 3.6L V6 Turbo | |
| 2018 | Porsche | Macan | SUV | 2.0L l4 Turbo | |
| 2018 | Porsche | Macan | GTS SUV | 3.0L V6 Turbo | |
| 2018 | Porsche | Macan | S SUV | 3.0L V6 Turbo | |
| 2018 | Porsche | Macan | Turbo SUV | 3.6L V6 Turbo | |
| 2019 | Porsche | Macan | SUV | 2.0L l4 Turbo | |
| 2019 | Porsche | Macan | S SUV | 3.0L V6 Turbo | |
| 2020 | Porsche | Macan | SUV | 2.0L l4 Turbo | |
| 2020 | Porsche | Macan | GTS SUV | 2.9L V6 Turbo | |
| 2020 | Porsche | Macan | S SUV | 3.0L V6 Turbo | |
| 2020 | Porsche | Macan | Turbo SUV | 2.9L V6 Turbo | |
| 2021 | Porsche | Macan | SUV | 2.0L l4 Turbo | |
| 2021 | Porsche | Macan | GTS SUV | 2.9L V6 Turbo | |
| 2021 | Porsche | Macan | S SUV | 3.0L V6 Turbo | |
| 2021 | Porsche | Macan | Turbo SUV | 2.9L V6 Turbo | |
| 2022 | Porsche | Macan | SUV | 2.0L l4 Turbo | |
| 2022 | Porsche | Macan | GTS SUV | 2.9L V6 Turbo | |
| 2022 | Porsche | Macan | S SUV | 2.9L V6 Turbo | |
| 2023 | Porsche | Macan | SUV | 2.0L l4 Turbo | |
| 2023 | Porsche | Macan | GTS SUV | 2.9L V6 Turbo | |
| 2023 | Porsche | Macan | S SUV | 2.9L V6 Turbo | |
| 2023 | Porsche | Macan | T SUV | 2.0L l4 Turbo | |
| 2024 | Porsche | Macan | 4 SUV | Electric Vehicle | |
| 2024 | Porsche | Macan | SUV | 2.0L l4 Turbo | |
| 2024 | Porsche | Macan | GTS SUV | 2.9L V6 Turbo | |
| 2024 | Porsche | Macan | S SUV | 2.9L V6 Turbo | |
| 2024 | Porsche | Macan | T SUV | 2.0L l4 Turbo | |
| 2024 | Porsche | Macan | Turbo SUV | Electric Vehicle | |
| 2025 | Porsche | Macan | 4 SUV | Electric Vehicle | |
| 2025 | Porsche | Macan | 4S SUV | Electric Vehicle | |
| 2025 | Porsche | Macan | SUV | 2.0L l4 Turbo | |
| 2025 | Porsche | Macan | SUV | Electric Vehicle | |
| 2025 | Porsche | Macan | GTS SUV | 2.9L V6 Turbo | |
| 2025 | Porsche | Macan | S SUV | 2.9L V6 Turbo | |
| 2025 | Porsche | Macan | T SUV | 2.0L l4 Turbo | |
| 2025 | Porsche | Macan | Turbo SUV | Electric Vehicle | |
| 2026 | Porsche | Macan | 4 SUV | Electric Vehicle | |
| 2026 | Porsche | Macan | 4S SUV | Electric Vehicle | |
| 2026 | Porsche | Macan | SUV | 2.0L l4 Turbo | |
| 2026 | Porsche | Macan | SUV | Electric Vehicle | |
| 2026 | Porsche | Macan | GTS SUV | Electric Vehicle | |
| 2026 | Porsche | Macan | GTS SUV | 2.9L V6 Turbo | |
| 2026 | Porsche | Macan | S SUV | 2.9L V6 Turbo | |
| 2026 | Porsche | Macan | T SUV | 2.0L l4 Turbo | |
| 2026 | Porsche | Macan | Turbo SUV | Electric Vehicle |