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Four Seasons 86035 Engine Coolant Thermostat Housing - Lower
| Brand | Four Seasons 86035 |
|---|---|
| Position | Lower |
| Bolt Hole Center To Bolt Hole Center | 2.62 |
| Description | Engine Coolant Components |
| Flange Thickness | 0.23 |
| Gasket Or Seal Included | Not Included |
| Inlet Port Diameter | 0.98 |
| Material | Aluminum |
| Meets / Exceeds OEM? | Yes |
| Overall Height IN | 4.1 |
| Style | w/o Thermostat |
| Thermostat Included? | Not Included |
| Type | Thermostat Housing |
| Product line | Thermostat Housing |
| Fits | Toyota · 3 vehicles |
OE direct replacement. Meets or exceeds OEM requirements for dependable fit and function.
Aluminum construction. Helps resist corrosion while keeping the housing lightweight.
Thermostat housing. Engine coolant component built as a housing without a thermostat.
Cross-references Four Seasons 86035, 163230A020 and 163230A021 for the same application. See all 9.
Four Seasons 86035 Thermostat Housing
Four Seasons 86035 is an aluminum engine coolant thermostat housing for the lower cooling system position on select Toyota Sienna models. It is built to meet or exceed OEM requirements and is specified as a thermostat housing without the thermostat, making it a direct replacement for the housing assembly only.
The Four Seasons Thermostat Housing line focuses on cooling-system service parts that match original equipment fitment and function. For this application, the housing is engineered for the 2004-2006 Toyota Sienna, lower position, with the correct inlet port diameter and bolt-hole spacing for the listed vehicle fitment.
Key Features
- Brand: Four Seasons Thermostat Housing
- Part number: 86035
- Engine coolant thermostat housing, lower position
- Aluminum construction for cooling-system durability
- Thermostat not included
- Gasket or seal not included
- Meets or exceeds OEM specifications
- Fits 2004-2006 Toyota Sienna, lower
Detailed Description
Four Seasons 86035 thermostat housing is a direct-fit cooling component for the lower thermostat housing location on 2004-2006 Toyota Sienna models. The aluminum housing is designed with a 0.98 in inlet port diameter, 2.62 in bolt hole center-to-center spacing, 0.23 in flange thickness, and 4.1 in overall height to match the listed application. This part cross-references Dorman 9025860 for the same application.
Use this thermostat housing when servicing the engine coolant system on a Toyota Sienna and you need a replacement housing that matches OE-style dimensions and mounting points. The part number 86035 is also referenced in interchange listings for this application, helping confirm the correct lower thermostat housing selection for the vehicle.
What This Part Helps Fix
- Cracked or corroded thermostat housing
- Coolant leaks at the lower housing area
- Warped sealing surfaces on the original housing
- Improper thermostat housing fitment during cooling-system repair
- Cooling-system service needs on 2004-2006 Toyota Sienna, lower
Installation Notes and Tips
Install this housing with the correct thermostat and sealing components for the vehicle, since the thermostat and gasket or seal are not included. Verify the lower mounting location, inlet alignment, and bolt-hole spacing before installation. Clean the mating surfaces thoroughly and inspect adjacent coolant hoses and clamps while the cooling system is open.
Quality Assurance
Four Seasons 86035 is manufactured to meet or exceed OEM requirements for the listed application. Confirm fitment against the vehicle’s year, make, model, and lower-position cooling-system configuration before ordering.
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 2006 | Toyota | Sienna | Lower | Thermostat Housing |
| 2005 | Toyota | Sienna | Lower | Thermostat Housing |
| 2004 | Toyota | Sienna | Lower | Thermostat Housing |
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