This thermostat housing assembly fits these models:

  • 1999-2006 S80 6 Cylinder Non-Turbo
  • 1999-2001 S80 6 Cylinder Turbo up to engine serial number 2476206

Basically, if your pre-2002 S80 Turbo 6 cylinder does not have the extra small pipe off the side of the housing then this is the one you want.