2013-2018 Audi A8/S8 Coolant Hose / Line 4H0121057L

OEM Part #: 4H0-121-057-L (4H0121057L)

$13.71
Used
Donor2014 Audi A8 · 4.0L
SKU: 544578 · 30-Day Returns
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Coolant Hose / Line 4H0121057L — Used (SKU 544578)
Genuine OEM Used SKU: 544578 Donor Vehicle: 2014 Audi A8 · 4.0L 2 photos
$13.71
30-Day Returns
Coolant Hose / Line 4H0121057L — Used (SKU 540929)
Genuine OEM Used SKU: 540929 Donor Vehicle: 2014 Audi A8 · 4.0L 2 photos
$13.71
30-Day Returns
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This used OEM Audi coolant hose, OEM part number 4H0121057L, is also known as a coolant line. It was removed from a 4.0L V8 turbocharged engine (found in the Audi A8 Quattro and S8). A failing coolant hose can develop cracks or leaks, leading to coolant loss, overheating, and potential engine damage. Ensure the hose O-rings and connections are inspected at installation.

Specifications

Specifications for Coolant Hose / Line 4H0121057L
Fits Vehicle ModelA8, S8
Fits Vehicle MakeAudi
OEM Part No4H0-121-057-L (4H0121057L)
CategoryRadiator / Coolant

Compatible Vehicles

Fits 15 vehicle configurations across 1 make, 2013-2018.

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

  • A8 2013-2018 · 9 variants 9 with notes
  • S8 2013-2018 · 6 variants 6 with notes
View all 15 vehicle configurations — 15 with fitment notes
Full vehicle fitment list for Coolant Hose / Line 4H0121057L
Year Make Model Trim Engine Note
2017 Audi A8 Quattro L Sedan 4.0L V8 Turbo For Vehicles with Engine Code(s) CTGA, CTGF
2016 Audi S8 Sedan 4.0L V8 Turbo For Vehicles with Engine Code(s) CTGA, CTGF
2018 Audi A8 Quattro L Sedan 4.0L V8 Turbo For Vehicles with Engine Code(s) CTGA, CTGF
2018 Audi S8 Sedan 4.0L V8 Turbo For Vehicles with Engine Code(s) CTGA, CTGF
2017 Audi S8 Sedan 4.0L V8 Turbo For Vehicles with Engine Code(s) CTGA, CTGF
2015 Audi S8 Sedan 4.0L V8 Turbo For Vehicles with Engine Code(s) CTGA, CTGF
2016 Audi A8 Quattro L Sedan 4.0L V8 Turbo For Vehicles with Engine Code(s) CTGA, CTGF
2015 Audi A8 Quattro L Sedan 4.0L V8 Turbo For Vehicles with Engine Code(s) CTGA, CTGF
2015 Audi A8 Quattro Sedan 4.0L V8 Turbo For Vehicles with Engine Code(s) CTGA, CTGF
2013 Audi A8 Quattro Sedan 4.0L V8 Turbo For Vehicles with Engine Code(s) CEUA
2014 Audi A8 Quattro Sedan 4.0L V8 Turbo For Vehicles with Engine Code(s) CEUA
2013 Audi A8 Quattro L Sedan 4.0L V8 Turbo For Vehicles with Engine Code(s) CEUA
2014 Audi A8 Quattro L Sedan 4.0L V8 Turbo For Vehicles with Engine Code(s) CEUA
2014 Audi S8 Sedan 4.0L V8 Turbo For Vehicles with Engine Code(s) CEUA
2013 Audi S8 Sedan 4.0L V8 Turbo For Vehicles with Engine Code(s) CEUA

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