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Genuine OEM & performance parts — ships to United States

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Number 13 marks the part’s position in this exploded view (Audi RS6 Avant (2019-)).

Other diagrams in the gallery may use a different number for the same part.

Product overview

Genuine OEM Audi Engine Coolant Hose, part number 4K2121081H. This flexible hose is a vital component of the engine cooling system, responsible for carrying coolant to or from the expansion tank. It ensures proper circulation and pressure regulation within the system. Weighing 0.028 kg and measuring 0.285 m in length, this hose is designed for specific routing and temperature resistance. Using a genuine OEM coolant hose guarantees the correct material composition, diameter, and flexibility to withstand engine heat and pressure, preventing leaks and maintaining cooling efficiency.

Catalogue entry: LINE.

Technical details

Category
Engine Cooling
Customs (HS) code
40093100
Manufacturer
Audi
Product Type
Genuine new auto parts
Shipping size (L × W × H)
28.5 × 12 × 5 cm
Shipping weight
0.03 kg

Why buy from WW Spares?

  • ✓ Genuine OEM inventory sourced directly from factory networks
  • ✓ Fitment support from workshop-seasoned parts specialists
  • ✓ Global logistics with customs-ready documentation

Need help confirming compatibility? Talk to a specialist

Replaces older part numbers

This is the current manufacturer number. Older numbers on this road are no longer supplied.

Supersession roadoldest to newest
  1. 4K2121081ENot stocked
    Jun 2019
  2. 4K2121081HThis pageCurrent number