HomeBelts and Cooling > Thermostat and HousingFour Seasons 85934 Engine Coolant Thermostat Housing
Part #: 85934

Four Seasons 85934 Engine Coolant Thermostat Housing

Water Outlet
⚙️ 27 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
📦Water Outlet
🚗Fitment: Chevrolet, GMC, Saab, and Buick, Trailblazer, Envoy, 9-7x, Rainier, Trailblazer EXT, Envoy XL, and Envoy XUV
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Reliable Engine Coolant Thermostat Housing for Select GM Vehicles

The Four Seasons Water Outlet Engine Coolant Thermostat Housing 85934 is designed to maintain optimal engine temperature in Buick, Chevrolet, GMC, and Saab models. This thermostat housing includes a thermostat and gasket, ensuring a complete solution for your cooling system needs.

  • Constructed from durable aluminum for long-lasting performance
  • Includes thermostat and gasket for easy installation
  • Maximum height of 8.000 inches with precise bolt hole spacing of 3.109 inches
  • Inlet diameter of 1.375 inches and mounting flange width of 0.700 inches
  • Meets or exceeds OEM specifications for reliable fit and function
  • Compatible with Buick 9-7x, Chevrolet Trailblazer, GMC Envoy series, Saab 9-7x, and related models

About the Four Seasons Water Outlet Product Line

The Water Outlet line by Four Seasons focuses on engine coolant components designed to provide dependable cooling system performance. This product line includes thermostat housings engineered to meet OEM standards, ensuring proper fitment and function in a range of GM vehicles. The 85934 thermostat housing integrates seamlessly with your vehicle’s cooling system to help regulate engine temperature effectively.

Product Details and Specifications

This engine coolant thermostat housing is made from aluminum, offering corrosion resistance and durability under high-temperature conditions. The included thermostat and gasket simplify replacement, reducing installation time. With a maximum height of 8.000 inches and a bolt hole center-to-center distance of 3.109 inches, this housing fits securely in the cooling system. The inlet diameter of 1.375 inches and mounting flange width of 0.700 inches are designed to match OEM dimensions, ensuring compatibility with Buick 9-7x, Chevrolet Trailblazer, GMC Envoy, and Saab 9-7x models.

Common Applications and Issues Addressed

  • Replacement of cracked or leaking thermostat housing
  • Resolving engine overheating due to faulty thermostat components
  • Fixing coolant leaks around the thermostat outlet
  • Maintaining proper coolant flow and engine temperature regulation
  • Upgrading worn or corroded cooling system parts

Installation Notes and Tips

Before installation, ensure the engine is cool and the cooling system is depressurized. Remove the old thermostat housing carefully to avoid damaging surrounding components. Clean the mounting surface thoroughly to ensure a proper seal with the included gasket. Torque bolts to manufacturer specifications to prevent leaks. Verify coolant levels and check for leaks after installation.

Quality Assurance and Warranty

The Four Seasons 85934 thermostat housing meets or exceeds OEM standards, providing reliable performance and fitment. It is manufactured with quality materials and includes all necessary components for installation. While specific warranty details may vary, Four Seasons products typically come with a limited warranty against defects in material and workmanship.

BrandFour Seasons
Part Number85934
PositionWater Outlet
Bolt Hole Center To Bolt Hole Center3.109
DescriptionEngine Coolant Components
Gasket Or Seal IncludedIncluded
Inlet Dia. IN1.375
MaterialAluminum
Maximum Height8.000
Meets / Exceeds OEM?Yes
Mnt Flange Width IN0.700
Stylew/ Thermostat
Thermostat Included?Included
TypeOutlet

This part fits 27 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2009ChevroletTrailblazer4.2LL6N/AThermostat included in Engine Coolant Thermostat/Water Outlet Assembly Kit.; Water Outlet
2009GMCEnvoy4.2LL6N/AThermostat included in Engine Coolant Thermostat/Water Outlet Assembly Kit.; Water Outlet
2009Saab9-7x4.2LL6N/AThermostat included in Engine Coolant Thermostat/Water Outlet Assembly Kit.; Water Outlet
2008ChevroletTrailblazerN/AThermostat included in Engine Coolant Thermostat/Water Outlet Assembly Kit.; Water Outlet
2008GMCEnvoyN/AThermostat included in Engine Coolant Thermostat/Water Outlet Assembly Kit.; Water Outlet
2008Saab9-7x4.2LL6N/AThermostat included in Engine Coolant Thermostat/Water Outlet Assembly Kit.; Water Outlet
2007BuickRainier4.2LL6N/AThermostat included in Engine Coolant Thermostat/Water Outlet Assembly Kit.; Water Outlet
2007ChevroletTrailblazer6.0LV8N/AThermostat included in Engine Coolant Thermostat/Water Outlet Assembly Kit.; Water Outlet
2007ChevroletTrailblazer4.2LL6N/AThermostat included in Engine Coolant Thermostat/Water Outlet Assembly Kit.; Water Outlet
2007GMCEnvoy4.2LL6N/AThermostat included in Engine Coolant Thermostat/Water Outlet Assembly Kit.; Water Outlet
2007Saab9-7x4.2LL6N/AThermostat included in Engine Coolant Thermostat/Water Outlet Assembly Kit.; Water Outlet
2006BuickRainier4.2LL6N/AThermostat included in Engine Coolant Thermostat/Water Outlet Assembly Kit.; Water Outlet
2006ChevroletTrailblazer6.0LV8N/AThermostat included in Engine Coolant Thermostat/Water Outlet Assembly Kit.; Water Outlet
2006ChevroletTrailblazer4.2LL6N/AThermostat included in Engine Coolant Thermostat/Water Outlet Assembly Kit.; Water Outlet
2006ChevroletTrailblazer EXT4.2LL6N/AThermostat included in Engine Coolant Thermostat/Water Outlet Assembly Kit.; Water Outlet
2006GMCEnvoy4.2LL6N/AThermostat included in Engine Coolant Thermostat/Water Outlet Assembly Kit.; Water Outlet
2006GMCEnvoy XL4.2LL6N/AThermostat included in Engine Coolant Thermostat/Water Outlet Assembly Kit.; Water Outlet
2006Saab9-7x4.2LL6N/AThermostat included in Engine Coolant Thermostat/Water Outlet Assembly Kit.; Water Outlet
2005BuickRainier4.2LL6N/AThermostat included in Engine Coolant Thermostat/Water Outlet Assembly Kit.; Water Outlet
2005ChevroletTrailblazerN/AThermostat included in Engine Coolant Thermostat/Water Outlet Assembly Kit.; Water Outlet
2005ChevroletTrailblazer EXT4.2LL6N/AThermostat included in Engine Coolant Thermostat/Water Outlet Assembly Kit.; Water Outlet
2005GMCEnvoy4.2LL6N/AThermostat included in Engine Coolant Thermostat/Water Outlet Assembly Kit.; Water Outlet
2005GMCEnvoy XL4.2LL6N/AThermostat included in Engine Coolant Thermostat/Water Outlet Assembly Kit.; Water Outlet
2005GMCEnvoy XUV4.2LL6N/AThermostat included in Engine Coolant Thermostat/Water Outlet Assembly Kit.; Water Outlet
2004BuickRainier4.2LL6N/AThermostat included in Engine Coolant Thermostat/Water Outlet Assembly Kit.; Water Outlet
2004ChevroletTrailblazerN/AThermostat included in Engine Coolant Thermostat/Water Outlet Assembly Kit.; Water Outlet
2004ChevroletTrailblazer EXT4.2LL6N/AThermostat included in Engine Coolant Thermostat/Water Outlet Assembly Kit.; Water Outlet

* 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:

1256775012572988126029131262011214659151100624576961339394131604131804131926052056605254560540321605420918157528593490221319022800902800KGT413192TW98464

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