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Four Seasons 85934 Engine Coolant Thermostat Housing
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.
| Brand | Four Seasons |
| Part Number | 85934 |
| Position | Water Outlet |
| Bolt Hole Center To Bolt Hole Center | 3.109 |
| Description | Engine Coolant Components |
| Gasket Or Seal Included | Included |
| Inlet Dia. IN | 1.375 |
| Material | Aluminum |
| Maximum Height | 8.000 |
| Meets / Exceeds OEM? | Yes |
| Mnt Flange Width IN | 0.700 |
| Style | w/ Thermostat |
| Thermostat Included? | Included |
| Type | Outlet |
This part fits 27 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2009 | Chevrolet | Trailblazer | 4.2L | L6 | N/A | Thermostat included in Engine Coolant Thermostat/Water Outlet Assembly Kit.; Water Outlet |
| 2009 | GMC | Envoy | 4.2L | L6 | N/A | Thermostat included in Engine Coolant Thermostat/Water Outlet Assembly Kit.; Water Outlet |
| 2009 | Saab | 9-7x | 4.2L | L6 | N/A | Thermostat included in Engine Coolant Thermostat/Water Outlet Assembly Kit.; Water Outlet |
| 2008 | Chevrolet | Trailblazer | N/A | Thermostat included in Engine Coolant Thermostat/Water Outlet Assembly Kit.; Water Outlet | ||
| 2008 | GMC | Envoy | N/A | Thermostat included in Engine Coolant Thermostat/Water Outlet Assembly Kit.; Water Outlet | ||
| 2008 | Saab | 9-7x | 4.2L | L6 | N/A | Thermostat included in Engine Coolant Thermostat/Water Outlet Assembly Kit.; Water Outlet |
| 2007 | Buick | Rainier | 4.2L | L6 | N/A | Thermostat included in Engine Coolant Thermostat/Water Outlet Assembly Kit.; Water Outlet |
| 2007 | Chevrolet | Trailblazer | 6.0L | V8 | N/A | Thermostat included in Engine Coolant Thermostat/Water Outlet Assembly Kit.; Water Outlet |
| 2007 | Chevrolet | Trailblazer | 4.2L | L6 | N/A | Thermostat included in Engine Coolant Thermostat/Water Outlet Assembly Kit.; Water Outlet |
| 2007 | GMC | Envoy | 4.2L | L6 | N/A | Thermostat included in Engine Coolant Thermostat/Water Outlet Assembly Kit.; Water Outlet |
| 2007 | Saab | 9-7x | 4.2L | L6 | N/A | Thermostat included in Engine Coolant Thermostat/Water Outlet Assembly Kit.; Water Outlet |
| 2006 | Buick | Rainier | 4.2L | L6 | N/A | Thermostat included in Engine Coolant Thermostat/Water Outlet Assembly Kit.; Water Outlet |
| 2006 | Chevrolet | Trailblazer | 6.0L | V8 | N/A | Thermostat included in Engine Coolant Thermostat/Water Outlet Assembly Kit.; Water Outlet |
| 2006 | Chevrolet | Trailblazer | 4.2L | L6 | N/A | Thermostat included in Engine Coolant Thermostat/Water Outlet Assembly Kit.; Water Outlet |
| 2006 | Chevrolet | Trailblazer EXT | 4.2L | L6 | N/A | Thermostat included in Engine Coolant Thermostat/Water Outlet Assembly Kit.; Water Outlet |
| 2006 | GMC | Envoy | 4.2L | L6 | N/A | Thermostat included in Engine Coolant Thermostat/Water Outlet Assembly Kit.; Water Outlet |
| 2006 | GMC | Envoy XL | 4.2L | L6 | N/A | Thermostat included in Engine Coolant Thermostat/Water Outlet Assembly Kit.; Water Outlet |
| 2006 | Saab | 9-7x | 4.2L | L6 | N/A | Thermostat included in Engine Coolant Thermostat/Water Outlet Assembly Kit.; Water Outlet |
| 2005 | Buick | Rainier | 4.2L | L6 | N/A | Thermostat included in Engine Coolant Thermostat/Water Outlet Assembly Kit.; Water Outlet |
| 2005 | Chevrolet | Trailblazer | N/A | Thermostat included in Engine Coolant Thermostat/Water Outlet Assembly Kit.; Water Outlet | ||
| 2005 | Chevrolet | Trailblazer EXT | 4.2L | L6 | N/A | Thermostat included in Engine Coolant Thermostat/Water Outlet Assembly Kit.; Water Outlet |
| 2005 | GMC | Envoy | 4.2L | L6 | N/A | Thermostat included in Engine Coolant Thermostat/Water Outlet Assembly Kit.; Water Outlet |
| 2005 | GMC | Envoy XL | 4.2L | L6 | N/A | Thermostat included in Engine Coolant Thermostat/Water Outlet Assembly Kit.; Water Outlet |
| 2005 | GMC | Envoy XUV | 4.2L | L6 | N/A | Thermostat included in Engine Coolant Thermostat/Water Outlet Assembly Kit.; Water Outlet |
| 2004 | Buick | Rainier | 4.2L | L6 | N/A | Thermostat included in Engine Coolant Thermostat/Water Outlet Assembly Kit.; Water Outlet |
| 2004 | Chevrolet | Trailblazer | N/A | Thermostat included in Engine Coolant Thermostat/Water Outlet Assembly Kit.; Water Outlet | ||
| 2004 | Chevrolet | Trailblazer EXT | 4.2L | L6 | N/A | Thermostat 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:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.