2000-2007 Audi A6/A8/RS6, Volkswagen Phaeton/Touareg Thermostat 077121113D

OEM Part #: 077-121-113-D (077121113D)

$12.49
Used
Donor2004 Audi A8 · 4.2L
SKU: 368686 · 30-Day Returns
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Thermostat 077121113D — Used (SKU 368686)
Genuine OEM Used SKU: 368686 Donor Vehicle: 2004 Audi A8 · 4.2L 2 photos
$12.49
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This is a used OEM Audi thermostat, part number 077121113D, also superseding 077121113B and 077121113C. It controls engine coolant flow to maintain operating temperature on 4.2L V8 gas engines, including the naturally aspirated and turbocharged variants found in Audi A6, A8, RS6, Volkswagen Phaeton, and Touareg. When a thermostat fails, it typically sticks open, causing slow warm-up and poor heater output, or sticks closed, leading to rapid overheating.

Specifications

Specifications for Thermostat 077121113D
Fits Vehicle ModelA6, A8, Phaeton, RS6, Touareg
Fits Vehicle MakeAudi, Volkswagen
OEM Part No077-121-113-D (077121113D)
Compatible OEM Part No 077-121-113-B, 077-121-113-C
CategoryRadiator / Coolant

Compatible Vehicles

Fits 17 vehicle configurations across 2 makes, 2000-2007.

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

  • A6 2000-2001 · 2 variants
  • A8 2004-2007 · 7 variants 7 with notes
  • RS6 2003

Volkswagen

  • Phaeton 2004-2006 · 3 variants
  • Touareg 2004-2007 · 4 variants 2 with notes
View all 17 vehicle configurations — 9 with fitment notes
Full vehicle fitment list for Thermostat 077121113D
Year Make Model Trim Engine Note
2000 Audi A6 Quattro Sedan 4.2L V8
2001 Audi A6 Quattro Sedan 4.2L V8
2003 Audi RS6 Sedan 4.2L V8 Turbo
2004 Audi A8 Quattro L Sedan 4.2L V8 For Vehicles with Engine Code(s) BFM, BGK
2005 Audi A8 Quattro Sedan 4.2L V8 For Vehicles with Engine Code(s) BFM, BGK
2005 Audi A8 Quattro L Sedan 4.2L V8 For Vehicles with Engine Code(s) BFM, BGK
2006 Audi A8 Quattro Sedan 4.2L V8 For Vehicles with Engine Code(s) BFM, BGK
2006 Audi A8 Quattro L Sedan 4.2L V8 For Vehicles with Engine Code(s) BFM, BGK
2007 Audi A8 Quattro Sedan 4.2L V8 For Vehicles with Engine Code(s) BFM, BGK
2007 Audi A8 Quattro L Sedan 4.2L V8 For Vehicles with Engine Code(s) BFM, BGK
2004 Volkswagen Phaeton Sedan 4.2L V8
2004 Volkswagen Touareg SUV 4.2L V8
2005 Volkswagen Phaeton Sedan 4.2L V8
2005 Volkswagen Touareg SUV 4.2L V8
2006 Volkswagen Phaeton Sedan 4.2L V8
2006 Volkswagen Touareg SUV 4.2L V8 For Vehicles with Engine Code(s) AXQ
2007 Volkswagen Touareg SUV 4.2L V8 For Vehicles with Engine Code(s) AXQ

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Asking about: Thermostat 077121113D · OEM #077121113D