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Four Seasons
Thermostat HousingFour Seasons 85955 Engine Coolant Thermostat Housing
| Brand | Four Seasons 85955 |
|---|---|
| Bolt Hole Center To Bolt Hole Center | 2.72 |
| Description | Engine Coolant Components |
| Flange Thickness | 0.555 |
| Gasket Or Seal Included | Included |
| Inlet Port Diameter | 1.146 |
| Material | Aluminum |
| Meets / Exceeds OEM? | Yes |
| Mounting Hole Quantity | 4 |
| Outlet Port Diameter | 38.000 |
| Overall Height IN | 2.224 |
| Style | w/ Thermostat |
| Thermostat Included? | Included |
| Type | Integrated Thermostat Housing |
| Product line | Thermostat Housing |
| Fits | BMW · 80 vehicles |
Integrated thermostat housing. Combines the housing and thermostat in one aluminum assembly.
Aluminum construction. Lightweight material helps resist corrosion in cooling-system service.
Gasket included. Ready for a cleaner, more complete installation.
Cross-references Dorman - Conduct-Tite 85955, Gates 33934 and Genuine 11537509227 for the same application. See all 13.
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Not what you need? See all Engine Coolant Thermostat Housing options
Integrated Thermostat Housing for BMW Cooling Systems
Four Seasons 85955 is an integrated engine coolant thermostat housing built for BMW cooling system service. It combines the thermostat housing and thermostat in one aluminum assembly, with a gasket or seal included for a cleaner replacement on supported applications.
- Aluminum construction for corrosion resistance and heat management
- Integrated thermostat housing with thermostat included
- Gasket or seal included
- 4 mounting holes with 2.72 in. bolt hole center spacing
- Outlet port diameter: 38.000; inlet port diameter: 1.146
- Flange thickness: 0.555 in.; overall height: 2.224 in.
- Meets or exceeds OEM requirements
Product Details
This Four Seasons thermostat housing is part of the Thermostat Housing product line and is engineered as an OE-style engine coolant component for BMW applications. The aluminum body, integrated thermostat design, and included seal support a direct replacement approach for vehicles that use a combined thermostat and housing assembly. Part number 85955 is also cross-referenced to Gates 33934 for the same application.
Common Cooling Issues It Can Address
- Coolant leaks at the thermostat housing or sealing surface
- Temperature control problems caused by a worn thermostat assembly
- Cracked or warped plastic housing replacement needs
- Cooling system service on BMW 325i, 330i, X5, and related models
- Restoring proper coolant flow through the engine coolant circuit
Installation Notes and Fitment
Compatible With BMW 325Ci, 330Ci, X3, and X5 from 2001-2006; BMW 320i, 325i, 325xi, 330i, 330xi, 525i, 530i, and Z4 from 2001-2005; BMW Z3 from 1999-2002; BMW 323Ci, 323i, 323ti, 328Ci, 328i, and 528i from 2000; and BMW 323i, 323is, 323ti, 328i, and 328is from 1999. Notes vary by application and include thermostat-in-assembly references and New Body Style coverage on select 1999 BMW models. Verify port dimensions, mounting pattern, and engine coolant component layout before installation.
Quality Assurance
Four Seasons lists this part as meeting or exceeding OEM requirements. The integrated thermostat housing design and aluminum construction support consistent replacement quality for BMW cooling system maintenance.
This part fits 80 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
| Year | Make | Model | Body Type | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|---|
| 2006 | BMW | 325Ci | — | — | — | N/A | Thermostat included in Engine Coolant Thermostat/Water Outlet Assembly Kit.; Thermostat Housing |
| 2006 | BMW | 330Ci | Coupe | 3.0L | L6 | N/A | Thermostat included in Engine Coolant Thermostat/Water Outlet Assembly Kit.; Thermostat Housing |
| 2006 | BMW | 330Ci | Convertible | 3.0L | L6 | N/A | Thermostat included in Engine Coolant Thermostat/Water Outlet Assembly Kit.; Thermostat Housing |
| 2006 | BMW | X3 | — | 3.0L | L6 | N/A | Thermostat included in Engine Coolant Thermostat/Water Outlet Assembly Kit.; Thermostat Housing |
| 2006 | BMW | X5 | — | 3.0L | L6 | N/A | Thermostat included in Engine Coolant Thermostat/Water Outlet Assembly Kit.; Thermostat Housing |
| 2005 | BMW | 320i | — | — | — | N/A | Thermostat included in Engine Coolant Thermostat/Water Outlet Assembly Kit.; Thermostat Housing |
| 2005 | BMW | 325Ci | — | — | — | N/A | Thermostat included in Engine Coolant Thermostat/Water Outlet Assembly Kit.; Thermostat Housing |
| 2005 | BMW | 325i | — | — | — | N/A | Thermostat included in Engine Coolant Thermostat/Water Outlet Assembly Kit.; Thermostat Housing |
| 2005 | BMW | 325xi | — | — | — | N/A | Thermostat included in Engine Coolant Thermostat/Water Outlet Assembly Kit.; Thermostat Housing |
| 2005 | BMW | 330Ci | — | — | — | N/A | Thermostat included in Engine Coolant Thermostat/Water Outlet Assembly Kit.; Thermostat Housing |
| 2005 | BMW | 330i | — | — | — | N/A | Thermostat included in Engine Coolant Thermostat/Water Outlet Assembly Kit.; Thermostat Housing |
| 2005 | BMW | 330xi | — | — | — | N/A | Thermostat included in Engine Coolant Thermostat/Water Outlet Assembly Kit.; Thermostat Housing |
| 2005 | BMW | 525i | — | — | — | N/A | Thermostat included in Engine Coolant Thermostat/Water Outlet Assembly Kit.; Thermostat Housing |
| 2005 | BMW | 530i | — | — | — | N/A | Thermostat included in Engine Coolant Thermostat/Water Outlet Assembly Kit.; Thermostat Housing |
| 2005 | BMW | X3 | — | 3.0L | L6 | N/A | Thermostat included in Engine Coolant Thermostat/Water Outlet Assembly Kit.; Thermostat Housing |
| 2005 | BMW | X5 | — | 3.0L | L6 | N/A | Thermostat included in Engine Coolant Thermostat/Water Outlet Assembly Kit.; Thermostat Housing |
| 2005 | BMW | Z4 | — | — | — | N/A | Thermostat included in Engine Coolant Thermostat/Water Outlet Assembly Kit.; Thermostat Housing |
| 2004 | BMW | 320i | — | — | — | N/A | Thermostat included in Engine Coolant Thermostat/Water Outlet Assembly Kit.; Thermostat Housing |
| 2004 | BMW | 325Ci | — | — | — | N/A | Thermostat included in Engine Coolant Thermostat/Water Outlet Assembly Kit.; Thermostat Housing |
| 2004 | BMW | 325i | — | — | — | N/A | Thermostat included in Engine Coolant Thermostat/Water Outlet Assembly Kit.; Thermostat Housing |
| 2004 | BMW | 325xi | — | — | — | N/A | Thermostat included in Engine Coolant Thermostat/Water Outlet Assembly Kit.; Thermostat Housing |
| 2004 | BMW | 330Ci | — | — | — | N/A | Thermostat included in Engine Coolant Thermostat/Water Outlet Assembly Kit.; Thermostat Housing |
| 2004 | BMW | 330i | — | — | — | N/A | Thermostat included in Engine Coolant Thermostat/Water Outlet Assembly Kit.; Thermostat Housing |
| 2004 | BMW | 330xi | — | — | — | N/A | Thermostat included in Engine Coolant Thermostat/Water Outlet Assembly Kit.; Thermostat Housing |
| 2004 | BMW | 525i | — | — | — | N/A | Thermostat included in Engine Coolant Thermostat/Water Outlet Assembly Kit.; Thermostat Housing |
| 2004 | BMW | 530i | — | — | — | N/A | Thermostat included in Engine Coolant Thermostat/Water Outlet Assembly Kit.; Thermostat Housing |
| 2004 | BMW | X3 | — | 3.0L | L6 | N/A | Thermostat included in Engine Coolant Thermostat/Water Outlet Assembly Kit.; Thermostat Housing |
| 2004 | BMW | X5 | — | 3.0L | L6 | N/A | Thermostat included in Engine Coolant Thermostat/Water Outlet Assembly Kit.; Thermostat Housing |
| 2004 | BMW | Z4 | — | — | — | N/A | Thermostat included in Engine Coolant Thermostat/Water Outlet Assembly Kit.; Thermostat Housing |
| 2003 | BMW | 320i | — | — | — | N/A | Thermostat included in Engine Coolant Thermostat/Water Outlet Assembly Kit.; Thermostat Housing |
| 2003 | BMW | 325Ci | — | — | — | N/A | Thermostat included in Engine Coolant Thermostat/Water Outlet Assembly Kit.; Thermostat Housing |
| 2003 | BMW | 325i | — | — | — | N/A | Thermostat included in Engine Coolant Thermostat/Water Outlet Assembly Kit.; Thermostat Housing |
| 2003 | BMW | 325xi | — | — | — | N/A | Thermostat included in Engine Coolant Thermostat/Water Outlet Assembly Kit.; Thermostat Housing |
| 2003 | BMW | 330Ci | — | — | — | N/A | Thermostat included in Engine Coolant Thermostat/Water Outlet Assembly Kit.; Thermostat Housing |
| 2003 | BMW | 330i | — | — | — | N/A | Thermostat included in Engine Coolant Thermostat/Water Outlet Assembly Kit.; Thermostat Housing |
| 2003 | BMW | 330xi | — | — | — | N/A | Thermostat included in Engine Coolant Thermostat/Water Outlet Assembly Kit.; Thermostat Housing |
| 2003 | BMW | 525i | — | — | — | N/A | Thermostat included in Engine Coolant Thermostat/Water Outlet Assembly Kit.; Thermostat Housing |
| 2003 | BMW | 530i | — | — | — | N/A | Thermostat included in Engine Coolant Thermostat/Water Outlet Assembly Kit.; Thermostat Housing |
| 2003 | BMW | X5 | — | 3.0L | L6 | N/A | Thermostat included in Engine Coolant Thermostat/Water Outlet Assembly Kit.; Thermostat Housing |
| 2003 | BMW | Z4 | — | — | — | N/A | Thermostat included in Engine Coolant Thermostat/Water Outlet Assembly Kit.; Thermostat Housing |
| 2002 | BMW | 320i | — | — | — | N/A | Thermostat included in Engine Coolant Thermostat/Water Outlet Assembly Kit.; Thermostat Housing |
| 2002 | BMW | 325Ci | — | — | — | N/A | Thermostat included in Engine Coolant Thermostat/Water Outlet Assembly Kit.; Thermostat Housing |
| 2002 | BMW | 325i | — | — | — | N/A | Thermostat included in Engine Coolant Thermostat/Water Outlet Assembly Kit.; Thermostat Housing |
| 2002 | BMW | 325xi | — | — | — | N/A | Thermostat included in Engine Coolant Thermostat/Water Outlet Assembly Kit.; Thermostat Housing |
| 2002 | BMW | 330Ci | — | — | — | N/A | Thermostat included in Engine Coolant Thermostat/Water Outlet Assembly Kit.; Thermostat Housing |
| 2002 | BMW | 330i | — | — | — | N/A | Thermostat included in Engine Coolant Thermostat/Water Outlet Assembly Kit.; Thermostat Housing |
| 2002 | BMW | 330xi | — | — | — | N/A | Thermostat included in Engine Coolant Thermostat/Water Outlet Assembly Kit.; Thermostat Housing |
| 2002 | BMW | 525i | — | — | — | N/A | Thermostat included in Engine Coolant Thermostat/Water Outlet Assembly Kit.; Thermostat Housing |
| 2002 | BMW | 530i | — | — | — | N/A | Thermostat included in Engine Coolant Thermostat/Water Outlet Assembly Kit.; Thermostat Housing |
| 2002 | BMW | X5 | — | 3.0L | L6 | N/A | Thermostat included in Engine Coolant Thermostat/Water Outlet Assembly Kit.; Thermostat Housing |
| 2002 | BMW | Z3 | — | 2.5L | L6 | N/A | Thermostat included in Engine Coolant Thermostat/Water Outlet Assembly Kit.; Thermostat Housing |
| 2002 | BMW | Z3 | — | 3.0L | L6 | N/A | Thermostat included in Engine Coolant Thermostat/Water Outlet Assembly Kit.; Thermostat Housing |
| 2001 | BMW | 320i | — | — | — | N/A | Thermostat included in Engine Coolant Thermostat/Water Outlet Assembly Kit.; Thermostat Housing |
| 2001 | BMW | 325Ci | — | — | — | N/A | Thermostat included in Engine Coolant Thermostat/Water Outlet Assembly Kit.; Thermostat Housing |
| 2001 | BMW | 325i | — | — | — | N/A | Thermostat included in Engine Coolant Thermostat/Water Outlet Assembly Kit.; Thermostat Housing |
| 2001 | BMW | 325xi | — | — | — | N/A | Thermostat included in Engine Coolant Thermostat/Water Outlet Assembly Kit.; Thermostat Housing |
| 2001 | BMW | 330Ci | — | — | — | N/A | Thermostat included in Engine Coolant Thermostat/Water Outlet Assembly Kit.; Thermostat Housing |
| 2001 | BMW | 330i | — | — | — | N/A | Thermostat included in Engine Coolant Thermostat/Water Outlet Assembly Kit.; Thermostat Housing |
| 2001 | BMW | 330xi | — | — | — | N/A | Thermostat included in Engine Coolant Thermostat/Water Outlet Assembly Kit.; Thermostat Housing |
| 2001 | BMW | 525i | — | — | — | N/A | Thermostat included in Engine Coolant Thermostat/Water Outlet Assembly Kit.; Thermostat Housing |
| 2001 | BMW | 530i | — | — | — | N/A | Thermostat included in Engine Coolant Thermostat/Water Outlet Assembly Kit.; Thermostat Housing |
| 2001 | BMW | X5 | — | 3.0L | L6 | N/A | Thermostat included in Engine Coolant Thermostat/Water Outlet Assembly Kit.; Thermostat Housing |
| 2001 | BMW | Z3 | — | 2.5L | L6 | N/A | Thermostat included in Engine Coolant Thermostat/Water Outlet Assembly Kit.; Thermostat Housing |
| 2001 | BMW | Z3 | — | 3.0L | L6 | N/A | Thermostat included in Engine Coolant Thermostat/Water Outlet Assembly Kit.; Thermostat Housing |
| 2000 | BMW | 323Ci | — | — | — | N/A | Thermostat included in Engine Coolant Thermostat/Water Outlet Assembly Kit.; Thermostat Housing |
| 2000 | BMW | 323i | — | — | — | N/A | Thermostat included in Engine Coolant Thermostat/Water Outlet Assembly Kit.; Thermostat Housing |
| 2000 | BMW | 323ti | — | — | — | N/A | Thermostat included in Engine Coolant Thermostat/Water Outlet Assembly Kit.; Thermostat Housing |
| 2000 | BMW | 328Ci | — | — | — | N/A | Thermostat included in Engine Coolant Thermostat/Water Outlet Assembly Kit.; Thermostat Housing |
| 2000 | BMW | 328i | — | — | — | N/A | Thermostat included in Engine Coolant Thermostat/Water Outlet Assembly Kit.; Thermostat Housing |
| 2000 | BMW | 528i | — | — | — | N/A | Thermostat included in Engine Coolant Thermostat/Water Outlet Assembly Kit.; Thermostat Housing |
| 2000 | BMW | Z3 | — | 2.5L | L6 | N/A | Thermostat included in Engine Coolant Thermostat/Water Outlet Assembly Kit.; Thermostat Housing |
| 2000 | BMW | Z3 | — | 2.8L | L6 | N/A | Thermostat included in Engine Coolant Thermostat/Water Outlet Assembly Kit.; Thermostat Housing |
| 1999 | BMW | 323i | — | — | — | N/A | w/ Thermostat; New Body Style; Thermostat Housing |
| 1999 | BMW | 323is | — | — | — | N/A | w/ Thermostat; New Body Style; Thermostat Housing |
| 1999 | BMW | 323ti | — | — | — | N/A | w/ Thermostat; New Body Style; Thermostat Housing |
| 1999 | BMW | 328i | — | — | — | N/A | w/ Thermostat; New Body Style; Thermostat Housing |
| 1999 | BMW | 328is | — | — | — | N/A | w/ Thermostat; New Body Style; Thermostat Housing |
| 1999 | BMW | 528i | — | — | — | N/A | Thermostat included in Engine Coolant Thermostat/Water Outlet Assembly Kit.; Thermostat Housing |
| 1999 | BMW | Z3 | — | 2.5L | L6 | N/A | Thermostat included in Engine Coolant Thermostat/Water Outlet Assembly Kit.; Thermostat Housing |
| 1999 | BMW | Z3 | — | 2.8L | L6 | N/A | Thermostat included in Engine Coolant Thermostat/Water Outlet Assembly Kit.; Thermostat Housing |
| No rows match your filter. | |||||||
Directly replaces or cross-references 13 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Dorman - Conduct-Tite — 85955Gates — 33934Genuine — 11537509227Quality-Built — 146024671858157739028136052019115301398771153143682311531437040TM1397W98485