Audi A8/S8 Lower Radiator Coolant Hose / Line 4H0121055AH

OEM Part #: 4H0-121-055-AH (4H0121055AH)

$25.99
Used
Donor Vehicle2013 Audi A8 · 4.0L
SKU: 609383 · 30-Day Returns
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4 Available — Select Your Part:
Lower Radiator Coolant Hose / Line 4H0121055AH — Used (SKU 609383)
Genuine OEM Used SKU: 609383 Donor Vehicle: 2013 Audi A8 · 4.0L 2 photos
$25.99
30-Day Returns
Lower Radiator Coolant Hose / Line 4H0121055AH — Used (SKU 577793)
Genuine OEM Used SKU: 577793 Donor Vehicle: 2014 Audi A8 · 4.0L 2 photos
$25.99
30-Day Returns
Lower Radiator Coolant Hose / Line 4H0121055AH — Used (SKU 665370)
Genuine OEM Used SKU: 665370 Donor Vehicle: 2015 Audi A8 · 4.0L 2 photos
$25.99
30-Day Returns
Lower Radiator Coolant Hose / Line 4H0121055AH — Used (SKU 674755)
Genuine OEM Used SKU: 674755 Donor Vehicle: 2015 Audi A8 · 4.0L 2 photos
$25.99
30-Day Returns
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An Audi 4H0121055AH lower radiator coolant hose/line — a used OEM part from a donor Audi. This coolant hose routes fluid between the radiator and engine on Audi A8 and S8 models fitted with the 4.0L V8 turbo. A failing hose often leaks coolant, leading to low coolant levels and potential overheating.

Specifications

Specifications for Lower Radiator Coolant Hose / Line 4H0121055AH
Fits Vehicle ModelA8, S8
Fits Vehicle MakeAudi
OEM Part No4H0-121-055-AH (4H0121055AH)
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 Lower Radiator Coolant Hose / Line 4H0121055AH
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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