HomeBelts and Cooling > Thermostat and HousingFour Seasons 85964 Engine Coolant Thermostat Housing
Part #: 85964

Four Seasons 85964 Engine Coolant Thermostat Housing

Thermostat Housing
⚙️ 8 vehicles fit this part
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Select your vehicle to confirm fitment
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✅ In Stock · Ready To Ship Most orders ship same-day if ordered before 1pm CST.
OE Direct Replacement — Bolt-on fit, no modifications needed
📦Thermostat Housing
🚗Fitment: Dodge and Freightliner, Sprinter 2500 and Sprinter 3500
🔄Easy Returns — Return within 60 days for a full refund
🚚Fast Shipping — Most orders ship same business day before 1pm CST

Overview of Four Seasons Thermostat Housing 85964

The Four Seasons Thermostat Housing 85964 is designed specifically for Dodge Sprinter 2500 and Sprinter 3500 models. This integrated thermostat housing combines durable aluminum construction with a pre-installed thermostat and gasket, ensuring reliable engine coolant management.

  • Constructed from high-quality aluminum for durability and heat resistance
  • Includes integrated thermostat and gasket for a complete cooling system solution
  • Designed with three mounting holes and precise bolt hole spacing of 2.788 inches
  • Features inlet port diameter of 1.267 inches and outlet port diameter of 41.000 mm
  • Flange thickness of 0.476 inches and overall height of 3.053 inches
  • Meets or exceeds OEM specifications for Dodge Sprinter 2500 and 3500

Detailed Product Description

The Four Seasons Thermostat Housing 85964 is an engine coolant thermostat housing engineered to maintain optimal engine temperature in Dodge Sprinter 2500 and Sprinter 3500 vehicles. Made from aluminum, this housing offers excellent thermal conductivity and corrosion resistance. The integrated thermostat housing style includes a pre-installed thermostat and gasket, simplifying installation and reducing the risk of leaks. The housing features three mounting holes with a bolt hole center-to-center distance of 2.788 inches, ensuring a secure fit. The inlet and outlet port diameters are precisely sized at 1.267 inches and 41.000 mm respectively, facilitating proper coolant flow. With a flange thickness of 0.476 inches and an overall height of 3.053 inches, this part is designed to meet the exacting standards required for engine coolant components.

About the Four Seasons Thermostat Housing Product Line

The Four Seasons Thermostat Housing product line focuses on integrated thermostat housings that combine the thermostat and housing into a single unit. This design improves reliability and simplifies replacement procedures. The 85964 model is part of this line, providing a direct replacement for Dodge Sprinter 2500 and 3500 models with components that meet or exceed OEM standards.

Common Applications and Issues Addressed

  • Replacement of worn or damaged thermostat housings in Dodge Sprinter 2500 and 3500
  • Resolving engine overheating caused by faulty thermostat or housing leaks
  • Preventing coolant leaks due to gasket failure or housing cracks
  • Maintaining proper coolant flow and engine temperature regulation
  • Addressing corrosion or wear in original aluminum thermostat housings

Installation Notes and Tips

When installing the Four Seasons Thermostat Housing 85964, ensure the mounting surface is clean and free of old gasket material. Use the included gasket to prevent leaks and tighten mounting bolts evenly to the manufacturer’s torque specifications. Verify that the thermostat is properly seated within the housing before final assembly. This part is compatible with Dodge Sprinter 2500 and Sprinter 3500 models, so confirm vehicle fitment prior to installation.

Quality Assurance and Warranty

This thermostat housing meets or exceeds OEM specifications, ensuring reliable performance and durability. Manufactured from corrosion-resistant aluminum, it is designed for long service life in demanding engine environments. The product includes a thermostat and gasket for a complete replacement solution. Warranty details are provided by Four Seasons and typically cover defects in materials and workmanship under normal use.

BrandFour Seasons
Part Number85964
PositionThermostat Housing
Bolt Hole Center To Bolt Hole Center2.788
DescriptionEngine Coolant Components
Flange Thickness0.476
Gasket Or Seal IncludedIncluded
Inlet Port Diameter1.267
MaterialAluminum
Meets / Exceeds OEM?Yes
Mounting Hole Quantity3
Outlet Port Diameter41.000
Overall Height IN3.053
Stylew/ Thermostat
Thermostat Included?Included
TypeIntegrated Thermostat Housing

This part fits 8 vehicles. Search below:

YearMakeModelPositionNotes
2006DodgeSprinter 2500N/AThermostat included in Engine Coolant Thermostat/Water Outlet Assembly Kit.; Thermostat Housing
2006DodgeSprinter 3500N/AThermostat included in Engine Coolant Thermostat/Water Outlet Assembly Kit.; Thermostat Housing
2005DodgeSprinter 2500N/AThermostat included in Engine Coolant Thermostat/Water Outlet Assembly Kit.; Thermostat Housing
2005DodgeSprinter 3500N/AThermostat included in Engine Coolant Thermostat/Water Outlet Assembly Kit.; Thermostat Housing
2004DodgeSprinter 2500N/AThermostat included in Engine Coolant Thermostat/Water Outlet Assembly Kit.; Thermostat Housing
2004DodgeSprinter 3500N/AThermostat included in Engine Coolant Thermostat/Water Outlet Assembly Kit.; Thermostat Housing
2003DodgeSprinter 2500N/AThermostat included in Engine Coolant Thermostat/Water Outlet Assembly Kit.; Thermostat Housing
2003DodgeSprinter 3500N/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:

34700492585011895080146AA5080146AB60520286112000215815782859649025147TH1187TH35087G1W98494

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