2020-2026 Audi RS Q8/SQ8 Coolant / Water Hose 4M0121056AQ

OEM Part #: 4M0-121-056-AQ (4M0121056AQ)

$69.99
Used
Donor2021 Audi SQ8 · 4.0L · 47k miles
SKU: 701491 · 30-Day Returns
✓ Free Same Day Shipping on orders by noon CT
Only 1 in stock — no guaranteed restock
Coolant / Water Hose 4M0121056AQ — Used (SKU 701491)
Genuine OEM Used SKU: 701491 Donor Vehicle: 2021 Audi SQ8 · 4.0L · 47k miles 2 photos
$69.99
30-Day Returns
  • Genuine OEM — real photos
  • 30-day returns on eligible parts
  • eBay Top Rated · 100,000+ positive ratings
  • Ships from our own indoor warehouse

Audi Coolant / Water Hose, OEM part number 4M0121056AQ, is a used genuine pipe from a donor vehicle. Also known as a coolant hose or water hose, this component circulates coolant through the 4.0L V8 MHEV twin-turbo engine found in the RS Q8 and SQ8. A cracked or degraded hose can lead to coolant leaks and engine overheating.

Specifications

Specifications for Coolant / Water Hose 4M0121056AQ
Fits Vehicle ModelRS Q8, SQ8
Fits Vehicle MakeAudi
OEM Part No4M0-121-056-AQ (4M0121056AQ)
CategoryRadiator / Coolant

Compatible Vehicles

Fits 14 vehicle configurations across 1 make, 2020-2026.

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

  • RS Q8 2020-2026 · 7 variants 5 with notes
  • SQ8 2020-2026 · 7 variants
View all 14 vehicle configurations 5 with fitment notes
Full vehicle fitment list for Coolant / Water Hose 4M0121056AQ
Year Make Model Trim Engine Note
2026 Audi RS Q8 SUV 4.0L V8 Turbo For Vehicles with Production Date After 08/05/24
2026 Audi SQ8 SUV 4.0L V8 Turbo
2025 Audi RS Q8 SUV 4.0L V8 Turbo
2022 Audi SQ8 SUV 4.0L V8 Turbo
2020 Audi SQ8 SUV 4.0L V8 Turbo
2021 Audi SQ8 SUV 4.0L V8 Turbo
2023 Audi SQ8 SUV 4.0L V8 Turbo
2024 Audi SQ8 SUV 4.0L V8 Turbo
2025 Audi SQ8 SUV 4.0L V8 Turbo
2021 Audi RS Q8 SUV 4.0L V8 Turbo For Vehicles With Production date Up To 08/05/24
2020 Audi RS Q8 SUV 4.0L V8 Turbo For Vehicles With Production date Up To 08/05/24
2023 Audi RS Q8 SUV 4.0L V8 Turbo For Vehicles With Production date Up To 08/05/24
2024 Audi RS Q8 SUV 4.0L V8 Turbo
2022 Audi RS Q8 SUV 4.0L V8 Turbo For Vehicles With Production date Up To 08/05/24

Ask a parts specialist

Asking about: Coolant / Water Hose 4M0121056AQ · OEM #4M0121056AQ