Coolant / Heater Bypass Solenoid Valve 4H0121670A for Audi, Porsche OEM Part #: 4H0-121-670-A This item ships free!

Coolant / Heater Bypass Solenoid Valve 4H0121670A for Audi, Porsche

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Current Parts In Stock:
Genuine OEM | Used
$27.74
This part comes as shown in the picture(s).
Genuine OEM | Used
$27.74
This part comes as shown in the picture(s).
Genuine OEM | Used
$27.74
This part comes as shown in the picture(s).
Genuine OEM | Used
$27.74
This part comes as shown in the picture(s).
Genuine OEM | Used
$27.74
This part comes as shown in the picture(s).
The OEM Coolant / Heater Bypass Solenoid Valve, part number 4H0121670A, is an essential component for efficient HVAC functionality in select Audi and Porsche models. This genuine factory-original valve is designed to regulate coolant flow, vital for maintaining optimal engine temperature and cabin heating. It's compatible with various models, including the 2018-2023 Audi Q7, A8 Quattro (2011-2021), and TT RS Quattro (2012-2023). Common issues resolved by this solenoid valve include poor heating performance and incorrect coolant flow due to wear or malfunction. Alternate terms for this component include water valve and HVAC heater control valve, ensuring clarity in service and replacement needs.

More Information about Coolant / Heater Bypass Solenoid Valve 4H0121670A

Fits Vehicle Model:

A8 Quattro, Cayenne, Q7, RS Q8, RS3, S8, TT RS Quattro

Fits Vehicle Make:

Audi, Porsche

OEM Part No:

4H0121670A (4H0-121-670-A)

Compatible OEM Part No:

4H0121670 (4H0-121-670), 4H0121671 (4H0-121-671)

Compatible Vehicles for Coolant / Heater Bypass Solenoid Valve 4H0121670A

Year: 2024
Make: Porsche
Model: Cayenne
Trim: Turbo SUV
Engine: 4.0L V8 Turbo
Restrictions:
Year: 2023
Make: Audi
Model: Q7
Trim: SUV
Engine: 2.0L l4 Turbo
Restrictions: For Vehicles with Production Date After 11/21/16
Year: 2023
Make: Porsche
Model: Cayenne
Trim: Turbo GT Coupe SUV
Engine: 4.0L V8 Turbo
Restrictions:
Year: 2022
Make: Audi
Model: S8
Trim: Sedan
Engine: 4.0L V8 Turbo
Restrictions:
Year: 2023
Make: Porsche
Model: Cayenne
Trim: Turbo S SUV
Engine: 4.0L V8 Turbo
Restrictions:
Year: 2023
Make: Porsche
Model: Cayenne
Trim: S SUV
Engine: 2.9L V6 Turbo
Restrictions:
Year: 2022
Make: Audi
Model: TT RS
Trim: Quattro Coupe
Engine: 2.5L l5 Turbo
Restrictions:
Year: 2023
Make: Porsche
Model: Cayenne
Trim: SUV
Engine: 3.0L V6 Turbo
Restrictions:
Year: 2023
Make: Porsche
Model: Cayenne
Trim: Turbo SUV
Engine: 4.0L V8 Turbo
Restrictions:
Year: 2023
Make: Porsche
Model: Cayenne
Trim: GTS Coupe SUV
Engine: 4.0L V8 Turbo
Restrictions:
Year: 2023
Make: Porsche
Model: Cayenne
Trim: GTS SUV
Engine: 4.0L V8 Turbo
Restrictions:
Year: 2022
Make: Porsche
Model: Cayenne
Trim: GTS Coupe SUV
Engine: 4.0L V8 Turbo
Restrictions:
Year: 2023
Make: Porsche
Model: Cayenne
Trim: Turbo S Coupe SUV
Engine: 4.0L V8 Turbo
Restrictions:
Year: 2022
Make: Porsche
Model: Cayenne
Trim: Turbo GT Coupe SUV
Engine: 4.0L V8 Turbo
Restrictions:
Year: 2023
Make: Audi
Model: RS3
Trim: Sedan
Engine: 2.5L l5 Turbo
Restrictions:
Year: 2015
Make: Audi
Model: A8
Trim: Quattro L Sedan
Engine: 4.0L V8 Turbo
Restrictions: For Vehicles with Engine Code(s) CTGA, CTGF
Year: 2017
Make: Audi
Model: Q7
Trim: SUV
Engine: 2.0L l4 Turbo
Restrictions:
Year: 2018
Make: Audi
Model: S8
Trim: Sedan
Engine: 4.0L V8 Turbo
Restrictions: For Vehicles with Engine Code(s) CTGA, CTGF
Year: 2019
Make: Audi
Model: TT RS
Trim: Quattro Coupe
Engine: 2.5L l5 Turbo
Restrictions:
Year: 2016
Make: Audi
Model: S8
Trim: Sedan
Engine: 4.0L V8 Turbo
Restrictions: For Vehicles with Engine Code(s) CTGA, CTGF
Year: 2023
Make: Porsche
Model: Cayenne
Trim: S Coupe SUV
Engine: 2.9L V6 Turbo
Restrictions:
Year: 2011
Make: Audi
Model: A8
Trim: Quattro Sedan
Engine: 4.2L V8
Restrictions: For Vehicles with Engine Code(s) CDRA
Year: 2023
Make: Audi
Model: RS Q8
Trim: SUV
Engine: 4.0L V8 Turbo
Restrictions: For Vehicles With Production date Up To 08/05/24
Year: 2023
Make: Porsche
Model: Cayenne
Trim: Turbo Coupe SUV
Engine: 4.0L V8 Turbo
Restrictions:
Year: 2020
Make: Porsche
Model: Cayenne
Trim: Turbo S SUV
Engine: 4.0L V8 Turbo
Restrictions:
Year: 2020
Make: Porsche
Model: Cayenne
Trim: Turbo S Coupe SUV
Engine: 4.0L V8 Turbo
Restrictions:
Year: 2020
Make: Audi
Model: RS3
Trim: Sedan
Engine: 2.5L l5 Turbo
Restrictions:
Year: 2019
Make: Audi
Model: A8
Trim: Quattro L Sedan
Engine: 4.0L V8 Turbo
Restrictions:
Year: 2022
Make: Porsche
Model: Cayenne
Trim: Turbo Coupe SUV
Engine: 4.0L V8 Turbo
Restrictions:
Year: 2022
Make: Porsche
Model: Cayenne
Trim: Turbo SUV
Engine: 4.0L V8 Turbo
Restrictions:
Year: 2022
Make: Porsche
Model: Cayenne
Trim: GTS SUV
Engine: 4.0L V8 Turbo
Restrictions:
Year: 2022
Make: Audi
Model: RS3
Trim: Sedan
Engine: 2.5L l5 Turbo
Restrictions:
Year: 2021
Make: Audi
Model: A8
Trim: Quattro L Sedan
Engine: 4.0L V8 Turbo
Restrictions:
Year: 2020
Make: Audi
Model: RS Q8
Trim: SUV
Engine: 4.0L V8 Turbo
Restrictions: For Vehicles With Production date Up To 08/05/24
Year: 2020
Make: Audi
Model: S8
Trim: Sedan
Engine: 4.0L V8 Turbo
Restrictions:
Year: 2020
Make: Audi
Model: A8
Trim: Quattro L Sedan
Engine: 4.0L V8 Turbo
Restrictions:
Year: 2021
Make: Porsche
Model: Cayenne
Trim: Turbo S Coupe SUV
Engine: 4.0L V8 Turbo
Restrictions:
Year: 2021
Make: Audi
Model: S8
Trim: Sedan
Engine: 4.0L V8 Turbo
Restrictions:
Year: 2022
Make: Audi
Model: RS Q8
Trim: SUV
Engine: 4.0L V8 Turbo
Restrictions: For Vehicles With Production date Up To 08/05/24
Year: 2021
Make: Audi
Model: RS Q8
Trim: SUV
Engine: 4.0L V8 Turbo
Restrictions: For Vehicles With Production date Up To 08/05/24
Year: 2022
Make: Porsche
Model: Cayenne
Trim: Turbo S Coupe SUV
Engine: 4.0L V8 Turbo
Restrictions:
Year: 2022
Make: Porsche
Model: Cayenne
Trim: Turbo S SUV
Engine: 4.0L V8 Turbo
Restrictions:
Year: 2023
Make: Audi
Model: S8
Trim: Sedan
Engine: 4.0L V8 Turbo
Restrictions:
Year: 2023
Make: Porsche
Model: Cayenne
Trim: Coupe SUV
Engine: 3.0L V6 Turbo
Restrictions:
Year: 2016
Make: Audi
Model: A8
Trim: Quattro L Sedan
Engine: 4.0L V8 Turbo
Restrictions: For Vehicles with Engine Code(s) CTGA, CTGF
Year: 2013
Make: Audi
Model: A8
Trim: Quattro L Sedan
Engine: 4.0L V8 Turbo
Restrictions: For Vehicles with Engine Code(s) CEUA
Year: 2021
Make: Porsche
Model: Cayenne
Trim: Turbo Coupe SUV
Engine: 4.0L V8 Turbo
Restrictions:
Year: 2019
Make: Audi
Model: Q7
Trim: SUV
Engine: 2.0L l4 Turbo
Restrictions:
Year: 2020
Make: Audi
Model: TT RS
Trim: Quattro Coupe
Engine: 2.5L l5 Turbo
Restrictions:
Year: 2021
Make: Porsche
Model: Cayenne
Trim: GTS SUV
Engine: 4.0L V8 Turbo
Restrictions:
Year: 2022
Make: Audi
Model: Q7
Trim: SUV
Engine: 2.0L l4 Turbo
Restrictions: For Vehicles with Production Date After 11/21/16
Year: 2021
Make: Porsche
Model: Cayenne
Trim: GTS Coupe SUV
Engine: 4.0L V8 Turbo
Restrictions:
Year: 2020
Make: Audi
Model: Q7
Trim: SUV
Engine: 2.0L l4 Turbo
Restrictions:
Year: 2021
Make: Audi
Model: Q7
Trim: SUV
Engine: 2.0L l4 Turbo
Restrictions: For Vehicles with Production Date After 11/21/16
Year: 2024
Make: Audi
Model: RS3
Trim: Sedan
Engine: 2.5L l5 Turbo
Restrictions:
Year: 2024
Make: Porsche
Model: Cayenne
Trim: S Coupe SUV
Engine: 3.0L V6 Turbo
Restrictions:
Year: 2024
Make: Porsche
Model: Cayenne
Trim: S Coupe SUV
Engine: 4.0L V8 Turbo
Restrictions:
Year: 2024
Make: Porsche
Model: Cayenne
Trim: Turbo GT Coupe SUV
Engine: 4.0L V8 Turbo
Restrictions:
Year: 2024
Make: Porsche
Model: Cayenne
Trim: SUV
Engine: 3.0L V6 Turbo
Restrictions:
Year: 2024
Make: Porsche
Model: Cayenne
Trim: S SUV
Engine: 3.0L V6 Turbo
Restrictions:
Year: 2024
Make: Audi
Model: Q7
Trim: SUV
Engine: 2.0L l4 Turbo
Restrictions: For Vehicles with Production Date After 11/21/16
Year: 2024
Make: Audi
Model: RS Q8
Trim: SUV
Engine: 4.0L V8 Turbo
Restrictions: For Vehicles With Production date Up To 08/05/24
Year: 2024
Make: Audi
Model: S8
Trim: Sedan
Engine: 4.0L V8 Turbo
Restrictions:
Year: 2024
Make: Porsche
Model: Cayenne
Trim: S SUV
Engine: 4.0L V8 Turbo
Restrictions:
Year: 2024
Make: Porsche
Model: Cayenne
Trim: Coupe SUV
Engine: 3.0L V6 Turbo
Restrictions:
Year: 2024
Make: Porsche
Model: Cayenne
Trim: Turbo Coupe SUV
Engine: 4.0L V8 Turbo
Restrictions:
Year: 2021
Make: Audi
Model: TT RS
Trim: Quattro Coupe
Engine: 2.5L l5 Turbo
Restrictions:
Year: 2018
Make: Audi
Model: TT RS
Trim: Quattro Coupe
Engine: 2.5L l5 Turbo
Restrictions:
Year: 2013
Make: Audi
Model: TT RS
Trim: Quattro Coupe
Engine: 2.5L l5 Turbo
Restrictions:
Year: 2012
Make: Audi
Model: TT RS
Trim: Quattro Coupe
Engine: 2.5L l5 Turbo
Restrictions:
Year: 2011
Make: Audi
Model: A8
Trim: Quattro L Sedan
Engine: 4.2L V8
Restrictions: For Vehicles with Engine Code(s) CDRA
Year: 2015
Make: Audi
Model: A8
Trim: Quattro Sedan
Engine: 4.0L V8 Turbo
Restrictions: For Vehicles with Engine Code(s) CTGA, CTGF
Year: 2017
Make: Audi
Model: A8
Trim: Quattro L Sedan
Engine: 4.0L V8 Turbo
Restrictions: For Vehicles with Engine Code(s) CTGA, CTGF
Year: 2017
Make: Audi
Model: RS3
Trim: Sedan
Engine: 2.5L l5 Turbo
Restrictions:
Year: 2020
Make: Porsche
Model: Cayenne
Trim: Turbo SUV
Engine: 4.0L V8 Turbo
Restrictions:
Year: 2020
Make: Porsche
Model: Cayenne
Trim: Turbo Coupe SUV
Engine: 4.0L V8 Turbo
Restrictions:
Year: 2015
Make: Audi
Model: S8
Trim: Sedan
Engine: 4.0L V8 Turbo
Restrictions: For Vehicles with Engine Code(s) CTGA, CTGF
Year: 2018
Make: Audi
Model: Q7
Trim: SUV
Engine: 2.0L l4 Turbo
Restrictions:
Year: 2018
Make: Audi
Model: RS3
Trim: Sedan
Engine: 2.5L l5 Turbo
Restrictions:
Year: 2019
Make: Porsche
Model: Cayenne
Trim: Turbo SUV
Engine: 4.0L V8 Turbo
Restrictions:
Year: 2012
Make: Audi
Model: A8
Trim: Quattro Sedan
Engine: 4.2L V8
Restrictions: For Vehicles with Engine Code(s) CDRA
Year: 2013
Make: Audi
Model: S8
Trim: Sedan
Engine: 4.0L V8 Turbo
Restrictions: For Vehicles with Engine Code(s) CEUA
Year: 2013
Make: Audi
Model: A8
Trim: Quattro Sedan
Engine: 4.0L V8 Turbo
Restrictions: For Vehicles with Engine Code(s) CEUA
Year: 2014
Make: Audi
Model: A8
Trim: Quattro Sedan
Engine: 4.0L V8 Turbo
Restrictions: For Vehicles with Engine Code(s) CEUA
Year: 2014
Make: Audi
Model: A8
Trim: Quattro L Sedan
Engine: 4.0L V8 Turbo
Restrictions: For Vehicles with Engine Code(s) CEUA
Year: 2014
Make: Audi
Model: S8
Trim: Sedan
Engine: 4.0L V8 Turbo
Restrictions: For Vehicles with Engine Code(s) CEUA
Year: 2017
Make: Audi
Model: S8
Trim: Sedan
Engine: 4.0L V8 Turbo
Restrictions: For Vehicles with Engine Code(s) CTGA, CTGF
Year: 2018
Make: Audi
Model: A8
Trim: Quattro L Sedan
Engine: 4.0L V8 Turbo
Restrictions: For Vehicles with Engine Code(s) CTGA, CTGF
Year: 2019
Make: Audi
Model: RS3
Trim: Sedan
Engine: 2.5L l5 Turbo
Restrictions:
Year: 2021
Make: Porsche
Model: Cayenne
Trim: Turbo SUV
Engine: 4.0L V8 Turbo
Restrictions:
Year: 2012
Make: Audi
Model: A8
Trim: Quattro L Sedan
Engine: 4.2L V8
Restrictions: For Vehicles with Engine Code(s) CDRA
Year: 2021
Make: Porsche
Model: Cayenne
Trim: Turbo S SUV
Engine: 4.0L V8 Turbo
Restrictions:
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