HomeBelts and Cooling > Thermostat and HousingFour Seasons 86212 Engine Coolant Thermostat Housing
Part #: 86212

Four Seasons 86212 Engine Coolant Thermostat Housing

Thermostat Housing
⚙️ 14 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
📦Thermostat Housing
🚗Fitment: Audi and Volkswagen, TTS Quattro, TT Quattro, Golf, Golf R, and GTI
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Overview of Four Seasons Thermostat Housing 86212

The Four Seasons Thermostat Housing 86212 is designed for reliable engine cooling system performance in select Audi and Volkswagen models. This integrated thermostat housing includes a thermostat and gasket, ensuring a complete solution for maintaining optimal engine temperature.

  • Constructed from durable black plastic material
  • Includes thermostat and gasket for easy installation
  • Two mounting holes with 2.75-inch bolt hole center spacing
  • Inlet port diameter of 1.276 inches for precise coolant flow
  • Flange thickness of 0.395 inches for secure sealing
  • Overall height of 7.0 inches
  • Compatible with Audi Golf, Golf R, GTI, TT Quattro, and TTS Quattro models
  • Meets or exceeds OEM specifications

About the Four Seasons Thermostat Housing Product Line

The Four Seasons Thermostat Housing product line focuses on integrated thermostat housings designed to provide reliable engine coolant management. This line includes components that combine the thermostat and housing into a single unit, simplifying replacement and ensuring proper fitment. The 86212 part number is part of this line, offering a plastic housing with included thermostat and gasket to meet the cooling system requirements of specific Audi and Volkswagen vehicles.

Detailed Product Description

This engine coolant thermostat housing is engineered from black plastic, providing corrosion resistance and durability under typical engine operating conditions. The integrated thermostat housing design includes the thermostat and gasket, reducing the need for multiple parts during installation. With two mounting holes spaced 2.75 inches apart, the housing ensures a secure fit. The inlet port diameter of 1.276 inches allows for proper coolant flow, while the flange thickness of 0.395 inches supports a tight seal to prevent leaks. The overall height of 7 inches accommodates the specific engine layout of compatible vehicles.

Common Applications and Issues Addressed

  • Replacement for cracked or leaking thermostat housings
  • Resolving engine overheating due to thermostat failure
  • Fixing coolant leaks caused by worn gaskets or seals
  • Restoring proper coolant flow in Audi Golf, Golf R, GTI, TT Quattro, and TTS Quattro models
  • Maintaining engine temperature regulation for optimal performance

Installation Notes and Tips

  • Ensure engine is cool before beginning installation
  • Use the included gasket to prevent coolant leaks
  • Verify bolt hole alignment with 2.75-inch center spacing
  • Check inlet port connections for secure fit
  • Follow vehicle manufacturer torque specifications for mounting bolts

Quality Assurance and Warranty

The Four Seasons Thermostat Housing 86212 meets or exceeds OEM standards for fit, form, and function. Each unit includes a thermostat and gasket to ensure a complete replacement. While specific warranty details may vary, Four Seasons products typically come with a limited warranty covering defects in materials and workmanship.

BrandFour Seasons
Part Number86212
PositionThermostat Housing
Bolt Hole Center To Bolt Hole Center2.75
ColorBlack
DescriptionEngine Coolant Components
Flange Thickness0.395
Gasket Or Seal IncludedIncluded
Inlet Port Diameter1.276
MaterialPlastic
Meets / Exceeds OEM?Yes
Mounting Hole Quantity2
Overall Height IN7.000
Stylew/ Thermostat
Thermostat Included?Included
TypeIntegrated Thermostat Housing

This part fits 14 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2015AudiTTS QuattroN/AThermostat included in Engine Coolant Thermostat/Water Outlet Assembly Kit.; Thermostat Housing
2014AudiTTS QuattroN/AThermostat included in Engine Coolant Thermostat/Water Outlet Assembly Kit.; Thermostat Housing
2013AudiTT QuattroN/AThermostat included in Engine Coolant Thermostat/Water Outlet Assembly Kit.; Thermostat Housing
2013AudiTTS QuattroN/AThermostat included in Engine Coolant Thermostat/Water Outlet Assembly Kit.; Thermostat Housing
2013VolkswagenGolf2.0LL4N/AThermostat included in Engine Coolant Thermostat/Water Outlet Assembly Kit.; Thermostat Housing
2013VolkswagenGolf RN/AThermostat included in Engine Coolant Thermostat/Water Outlet Assembly Kit.; Thermostat Housing
2013VolkswagenGTIN/AThermostat included in Engine Coolant Thermostat/Water Outlet Assembly Kit.; Thermostat Housing
2012AudiTT QuattroN/AThermostat included in Engine Coolant Thermostat/Water Outlet Assembly Kit.; Thermostat Housing
2012AudiTTS QuattroN/AThermostat included in Engine Coolant Thermostat/Water Outlet Assembly Kit.; Thermostat Housing
2012VolkswagenGolf RN/AThermostat included in Engine Coolant Thermostat/Water Outlet Assembly Kit.; Thermostat Housing
2012VolkswagenGTIN/AThermostat included in Engine Coolant Thermostat/Water Outlet Assembly Kit.; Thermostat Housing
2011AudiTTS QuattroN/AThermostat included in Engine Coolant Thermostat/Water Outlet Assembly Kit.; Thermostat Housing
2010AudiTTS QuattroN/AThermostat included in Engine Coolant Thermostat/Water Outlet Assembly Kit.; Thermostat Housing
2009AudiTTS QuattroN/AThermostat included in Engine Coolant Thermostat/Water Outlet Assembly Kit.; Thermostat Housing

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

06F121111H580176817042862129025870TI680W98742

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.