Details

• Brand:

  

• SKU:

  4E0-121-113

• Positions: Rear
• Other Names:

  Valve, Thermo Valve

• Description:

  Maintain your Audi’s precise engine temperature with the Genuine Audi Thermostat Check Valve, part number 4E0-121-113. This critical cooling system component is engineered for optimal flow control, helping to regulate engine temperature and ensure proper thermostat performance. Designed specifically for Audi A6, S6, A8, and S8 models from 2007 to 2018, this OEM check valve guarantees compatibility, durability, and performance.

  Crafted by Audi to exact factory specifications, this valve prevents coolant backflow and supports consistent engine cooling — essential for preventing overheating and maintaining fuel efficiency. Whether you're doing preventative maintenance or addressing a cooling system issue, this is the exact part your Audi needs.

  Compatible Vehicles

  • 2007–2018 Audi A6

  • 2007–2018 Audi S6

  • 2007–2018 Audi A8

  • 2007–2018 Audi S8
    Always verify fitment with VIN for exact compatibility.

  Features & Benefits

  • Genuine OEM Audi part – 4E0-121-113

  • Maintains cooling system pressure and flow

  • Prevents coolant backflow during thermostat cycles

  • Direct replacement for aging or failed check valves

  • Precision-fit with no modifications required

  • Built to Audi's factory standards

  • 1-Year Manufacturer Warranty

  What You Get

  • 1x Thermostat Check Valve (Audi Part #4E0-121-113)

• Notes: Included with connector hose. Included with thermostat unit. Included with water hose assembly.

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