2015-2018 Audi A8/S8 Coolant / Water Hose Left, Rear 4H0121448S

OEM Part #: 4H0-121-448-S (4H0121448S)

$7.49
Side: Left, Rear Used
Donor2017 Audi A8 · 4.0L
SKU: 612297 · 30-Day Returns
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Coolant / Water Hose 4H0121448S — Used (SKU 612297)
Genuine OEM Used SKU: 612297 Donor Vehicle: 2017 Audi A8 · 4.0L 2 photos
$7.49
30-Day Returns
Coolant / Water Hose 4H0121448S — Used (SKU 639022)
Genuine OEM Used SKU: 639022 Donor Vehicle: 2017 Audi A8 · 4.0L 2 photos
$8.49
30-Day Returns
Coolant / Water Hose 4H0121448S — Used (SKU 674610)
Genuine OEM Used SKU: 674610 Donor Vehicle: 2015 Audi A8 · 4.0L 2 photos
$8.49
30-Day Returns
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Audi coolant/water hose, OEM part number 4H0121448S—a used genuine hose removed from a donor vehicle. This left-rear hose routes coolant for the 4.0L V8 turbocharged engine found in the A8 Quattro and S8. Over time, the rubber can weaken, leading to coolant leaks, engine overheating, or low-coolant warnings.

Specifications

Specifications for Coolant / Water Hose 4H0121448S
Fits Vehicle ModelA8, S8
Fits Vehicle MakeAudi
OEM Part No4H0-121-448-S (4H0121448S)
SideLeft, Rear
CategoryRadiator / Coolant

Compatible Vehicles

Fits 9 vehicle configurations across 1 make, 2015-2018.

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 2015-2018 · 5 variants 5 with notes
  • S8 2015-2018 · 4 variants 4 with notes
View all 9 vehicle configurations — 9 with fitment notes
Full vehicle fitment list for Coolant / Water Hose 4H0121448S
Year Make Model Trim Engine Note
2015 Audi A8 Quattro Sedan 4.0L V8 Turbo For Vehicles with Engine Code(s) CTFA, CTGA, CTGF, DDTA
2015 Audi A8 Quattro L Sedan 4.0L V8 Turbo For Vehicles with Engine Code(s) CTFA, CTGA, CTGF, DDTA
2016 Audi A8 Quattro L Sedan 4.0L V8 Turbo For Vehicles with Engine Code(s) CTFA, CTGA, CTGF, DDTA
2015 Audi S8 Sedan 4.0L V8 Turbo For Vehicles with Engine Code(s) CTFA, CTGA, CTGF, DDTA
2016 Audi S8 Sedan 4.0L V8 Turbo For Vehicles with Engine Code(s) CTFA, CTGA, CTGF, DDTA
2017 Audi S8 Sedan 4.0L V8 Turbo For Vehicles with Engine Code(s) CTFA, CTGA, CTGF, DDTA
2017 Audi A8 Quattro L Sedan 4.0L V8 Turbo For Vehicles with Engine Code(s) CTFA, CTGA, CTGF, DDTA
2018 Audi S8 Sedan 4.0L V8 Turbo For Vehicles with Engine Code(s) CTFA, CTGA, CTGF, DDTA
2018 Audi A8 Quattro L Sedan 4.0L V8 Turbo For Vehicles with Engine Code(s) CTFA, CTGA, CTGF, DDTA

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