HomeBelts and Cooling > Thermostat and HousingFour Seasons 86035 Engine Coolant Thermostat Housing - Lower
Part #: 86035

Four Seasons 86035 Engine Coolant Thermostat Housing - Lower

Thermostat Housing, Lower
⚙️ 3 vehicles fit this part
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Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
📦Thermostat Housing, Lower
🚗Fitment: Toyota, Sienna
🔄Easy Returns — Return within 60 days for a full refund
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Overview of Four Seasons Thermostat Housing 86035

The Four Seasons Thermostat Housing 86035 is designed specifically for Toyota Sienna models, providing a reliable engine coolant thermostat housing solution. Crafted from durable aluminum, this housing ensures efficient heat dissipation and long-lasting performance without the thermostat included.

  • Constructed from high-quality aluminum for durability
  • Compatible with Toyota Sienna vehicles
  • Part number 86035 for precise identification
  • Flange thickness of 0.23 inches for secure mounting
  • Inlet port diameter of 0.98 inches for proper coolant flow
  • Bolt hole center-to-center distance of 2.62 inches
  • Overall height of 4.1 inches
  • Meets or exceeds OEM specifications
  • Thermostat not included; designed as housing only

Detailed Product Description

This Four Seasons Thermostat Housing 86035 is engineered to meet or exceed OEM standards, ensuring compatibility and reliable performance in Toyota Sienna vehicles. The aluminum construction offers excellent resistance to corrosion and heat, which is critical for maintaining engine temperature regulation. With a flange thickness of 0.23 inches and a bolt hole center-to-center measurement of 2.62 inches, this housing provides a secure and precise fit. The inlet port diameter of 0.98 inches supports optimal coolant flow, while the overall height of 4.1 inches accommodates the engine layout without interference.

The housing is supplied without a thermostat or gasket, allowing for flexibility in installation and maintenance. It is part of the Four Seasons Thermostat Housing product line, which focuses on delivering reliable engine coolant components designed to maintain proper engine temperature and prevent overheating.

Common Applications and Issues Addressed

  • Replacement of cracked or damaged thermostat housing in Toyota Sienna
  • Resolving coolant leaks caused by worn or corroded housings
  • Preventing engine overheating due to faulty housing fitment
  • Supporting proper coolant flow and temperature regulation
  • Maintaining engine cooling system integrity during repairs

Installation Notes and Tips

  • Ensure the mating surfaces are clean and free of old gasket material before installation
  • Use a compatible gasket or sealant as the housing does not include a gasket
  • Tighten bolts evenly to the manufacturer’s torque specifications to avoid warping
  • Verify inlet port alignment for proper coolant hose connection
  • Inspect the thermostat separately as it is not included with this housing

Quality Assurance and Warranty

The Four Seasons Thermostat Housing 86035 is manufactured to meet or exceed OEM quality standards, ensuring dependable performance in Toyota Sienna vehicles. While the product does not include a thermostat or gasket, it is built to provide a precise fit and long service life. Warranty coverage details should be confirmed with the point of purchase or manufacturer documentation.

BrandFour Seasons
Part Number86035
PositionThermostat Housing, Lower
Bolt Hole Center To Bolt Hole Center2.62
DescriptionEngine Coolant Components
Flange Thickness0.23
Gasket Or Seal IncludedNot Included
Inlet Port Diameter0.98
MaterialAluminum
Meets / Exceeds OEM?Yes
Overall Height IN4.1
Stylew/o Thermostat
Thermostat Included?Not Included
TypeThermostat Housing

This part fits 3 vehicles. Search below:

YearMakeModelPositionNotes
2006ToyotaSiennaLowerThermostat Housing
2005ToyotaSiennaLowerThermostat Housing
2004ToyotaSiennaLowerThermostat 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:

163230A020163230A021163232002060541361815855860359025860CH7035W98565

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