Dorman 902-813 Engine Coolant Thermostat Housing Assembly - Engine Block

Brand Dorman 902-813
Position Engine Block
Bleeder Hole No
Bolt Hole Center To Bolt Hole Center 3.1 in; 3.2 in; 4 in; 3 in
Color Black
Flange Length 4.5
Flange Thickness 0.45
Flange Width 4.5
Gasket Or Seal Included Yes
Gasket Type Gasket
Grade Type Regular
Inside Diameter 0.8 in; 1.1 in
Material Plastic
Mounting Hardware Included No
Mounting Hole Quantity 4
Outlet Port Quantity 1
Package Contents 1 Thermostat Housing; 1 Thermostat; 1 Gasket
Thermostat Included Yes
Thermostat Opening Temperature 206 Deg. F.
Fits BMW · 83 vehicles

OE-style replacement. Matches stock housing fit and durability for a straightforward swap.

Plastic housing. Lightweight construction with a black finish for a clean, durable look.

Thermostat included. Comes with a gasket and thermostat for a more complete repair.

Cross-references AMS Automotive 4602, Beck/Arnley 143-0825 and Dorman - Conduct-Tite 85955 for the same application. See all 9.

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Dorman 902-813 Thermostat Housing Assembly

Dorman 902-813 is a replacement engine coolant thermostat housing assembly built for specified BMW applications. It matches the stock housing’s fit and durability requirements while using a plastic housing with a black finish and an included gasket and thermostat.

Compatible With BMW 323i, 325Ci, 325i, 328i, 525i, X3, X5, and other listed models, this thermostat housing assembly is engineered for engine block mounting and steady coolant temperature control. The thermostat opens at 206 degrees F to support proper engine warm-up and cooling system regulation.

Key Features

  • Replacement engine coolant thermostat housing assembly for specified BMW vehicles
  • Plastic housing with black finish
  • Thermostat included with 206 degrees F opening temperature
  • Gasket included for sealing at installation
  • Four mounting holes and one outlet port
  • Designed to handle repeated temperature swings for extended service life
  • Part number 902-813 for catalog and fitment lookup

Detailed Description

This Dorman thermostat housing assembly is built as a direct replacement for the original engine coolant thermostat housing used on select BMW 3 Series, 5 Series, X3, X5, Z3, and Z4 applications. It is designed around the original housing dimensions and mounting layout, including a 4.5-inch flange length and width, 0.45-inch flange thickness, and multiple bolt-hole center measurements for proper alignment. The included thermostat and gasket simplify service on the cooling system while maintaining the factory-style configuration.

Part number 902-813 cross-references Beck/Arnley 143-0825 and Gates 33934 for the same application. This part is commonly searched as a BMW thermostat housing assembly, BMW coolant thermostat housing, and Dorman 902-813 thermostat housing for engine block mounting.

Common Problems This Part Addresses

  • Coolant leaks at a cracked or warped thermostat housing
  • Engine running too cool or too hot from thermostat failure
  • Temperature fluctuation caused by worn housing sealing surfaces
  • Service issues from a damaged original plastic housing
  • Cooling system maintenance on BMW 325Ci, 330i, X3, and related models

Installation Notes and Tips

Fits 2001-2006 BMW 325Ci, Engine Block. Fits 2001-2006 BMW 325i, Engine Block. Fits 2001-2006 BMW 330Ci, Engine Block. Fits 2004-2006 BMW X3, Engine Block. Fits 2001-2006 BMW X5, Engine Block. Fits 2001-2005 BMW 320i, Engine Block. Fits 2001-2005 BMW 325xi, Engine Block. Fits 2001-2005 BMW 330i, Engine Block. Fits 2001-2005 BMW 330xi, Engine Block. Fits 2001-2005 BMW 525i, Engine Block. Fits 2001-2005 BMW 530i, Engine Block. Fits 2003-2005 BMW Z4, Engine Block. Fits 1999-2002 BMW Z3, Engine Block. Fits 1999-2001 BMW 323i, Engine Block. Fits 2000 BMW 323Ci, Engine Block. Fits 2000 BMW 328Ci, Engine Block. Fits 1999-2000 BMW 328i, Engine Block. Fits 1999-2000 BMW 528i, Engine Block.

Before installation, verify the engine code and compare the housing shape, bolt pattern, and outlet orientation to the original part. Replace the gasket during service, inspect the mating surfaces for damage, and refill and bleed the cooling system according to BMW service procedures after installation.

Quality Assurance

Dorman designs this replacement housing to match the fit and durability of the original stock assembly and to withstand extreme temperature changes. The included thermostat and gasket support a complete cooling system repair on the listed BMW applications.

This part fits 83 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersPositionNotes
2006BMW325Ci2.5LL6Engine BlockEngine Coolant Thermostat Housing Assembly with included thermostat - fits various vehicle models
2006BMW325i2.5LL6Engine BlockEngine Coolant Thermostat Housing Assembly with included thermostat - fits various vehicle models
2006BMW330Ci3.0LL6Engine BlockEngine Coolant Thermostat Housing Assembly with included thermostat - fits various vehicle models
2006BMWX32.5LL6Engine BlockEngine Coolant Thermostat Housing Assembly with included thermostat - fits various vehicle models
2006BMWX33.0LL6Engine BlockEngine Coolant Thermostat Housing Assembly with included thermostat - fits various vehicle models
2006BMWX53.0LL6Engine BlockEngine Coolant Thermostat Housing Assembly with included thermostat - fits various vehicle models
2005BMW320i2.2LL6Engine BlockEngine Coolant Thermostat Housing Assembly with included thermostat - fits various vehicle models
2005BMW325Ci2.5LL6Engine BlockEngine Coolant Thermostat Housing Assembly with included thermostat - fits various vehicle models
2005BMW325i2.5LL6Engine BlockEngine Coolant Thermostat Housing Assembly with included thermostat - fits various vehicle models
2005BMW325xi2.5LL6Engine BlockEngine Coolant Thermostat Housing Assembly with included thermostat - fits various vehicle models
2005BMW330Ci3.0LL6Engine BlockEngine Coolant Thermostat Housing Assembly with included thermostat - fits various vehicle models
2005BMW330i3.0LL6Engine BlockEngine Coolant Thermostat Housing Assembly with included thermostat - fits various vehicle models
2005BMW330xi3.0LL6Engine BlockEngine Coolant Thermostat Housing Assembly with included thermostat - fits various vehicle models
2005BMW525i2.5LL6Engine BlockEngine Coolant Thermostat Housing Assembly with included thermostat - fits various vehicle models
2005BMW530i3.0LL6Engine BlockEngine Coolant Thermostat Housing Assembly with included thermostat - fits various vehicle models
2005BMWX32.5LL6Engine BlockEngine Coolant Thermostat Housing Assembly with included thermostat - fits various vehicle models
2005BMWX33.0LL6Engine BlockEngine Coolant Thermostat Housing Assembly with included thermostat - fits various vehicle models
2005BMWX53.0LL6Engine BlockEngine Coolant Thermostat Housing Assembly with included thermostat - fits various vehicle models
2005BMWZ42.5LL6Engine BlockEngine Coolant Thermostat Housing Assembly with included thermostat - fits various vehicle models
2005BMWZ43.0LL6Engine BlockEngine Coolant Thermostat Housing Assembly with included thermostat - fits various vehicle models
2004BMW320i2.2LL6Engine BlockEngine Coolant Thermostat Housing Assembly with included thermostat - fits various vehicle models
2004BMW325Ci2.5LL6Engine BlockEngine Coolant Thermostat Housing Assembly with included thermostat - fits various vehicle models
2004BMW325i2.5LL6Engine BlockEngine Coolant Thermostat Housing Assembly with included thermostat - fits various vehicle models
2004BMW325xi2.5LL6Engine BlockEngine Coolant Thermostat Housing Assembly with included thermostat - fits various vehicle models
2004BMW330Ci3.0LL6Engine BlockEngine Coolant Thermostat Housing Assembly with included thermostat - fits various vehicle models
2004BMW330i3.0LL6Engine BlockEngine Coolant Thermostat Housing Assembly with included thermostat - fits various vehicle models
2004BMW330xi3.0LL6Engine BlockEngine Coolant Thermostat Housing Assembly with included thermostat - fits various vehicle models
2004BMW525i2.5LL6Engine BlockEngine Coolant Thermostat Housing Assembly with included thermostat - fits various vehicle models
2004BMW530i3.0LL6Engine BlockEngine Coolant Thermostat Housing Assembly with included thermostat - fits various vehicle models
2004BMWX32.5LL6Engine BlockEngine Coolant Thermostat Housing Assembly with included thermostat - fits various vehicle models
2004BMWX33.0LL6Engine BlockEngine Coolant Thermostat Housing Assembly with included thermostat - fits various vehicle models
2004BMWX53.0LL6Engine BlockEngine Coolant Thermostat Housing Assembly with included thermostat - fits various vehicle models
2004BMWZ42.5LL6Engine BlockEngine Coolant Thermostat Housing Assembly with included thermostat - fits various vehicle models
2004BMWZ43.0LL6Engine BlockEngine Coolant Thermostat Housing Assembly with included thermostat - fits various vehicle models
2003BMW320i2.2LL6Engine BlockEngine Coolant Thermostat Housing Assembly with included thermostat - fits various vehicle models
2003BMW325Ci2.5LL6Engine BlockEngine Coolant Thermostat Housing Assembly with included thermostat - fits various vehicle models
2003BMW325i2.5LL6Engine BlockEngine Coolant Thermostat Housing Assembly with included thermostat - fits various vehicle models
2003BMW325xi2.5LL6Engine BlockEngine Coolant Thermostat Housing Assembly with included thermostat - fits various vehicle models
2003BMW330Ci3.0LL6Engine BlockEngine Coolant Thermostat Housing Assembly with included thermostat - fits various vehicle models
2003BMW330i3.0LL6Engine BlockEngine Coolant Thermostat Housing Assembly with included thermostat - fits various vehicle models
2003BMW330xi3.0LL6Engine BlockEngine Coolant Thermostat Housing Assembly with included thermostat - fits various vehicle models
2003BMW525i2.5LL6Engine BlockEngine Coolant Thermostat Housing Assembly with included thermostat - fits various vehicle models
2003BMW530i3.0LL6Engine BlockEngine Coolant Thermostat Housing Assembly with included thermostat - fits various vehicle models
2003BMWX53.0LL6Engine BlockEngine Coolant Thermostat Housing Assembly with included thermostat - fits various vehicle models
2003BMWZ42.5LL6Engine BlockEngine Coolant Thermostat Housing Assembly with included thermostat - fits various vehicle models
2003BMWZ43.0LL6Engine BlockEngine Coolant Thermostat Housing Assembly with included thermostat - fits various vehicle models
2002BMW320i2.2LL6Engine BlockEngine Coolant Thermostat Housing Assembly with included thermostat - fits various vehicle models
2002BMW325Ci2.5LL6Engine BlockEngine Coolant Thermostat Housing Assembly with included thermostat - fits various vehicle models
2002BMW325i2.5LL6Engine BlockEngine Coolant Thermostat Housing Assembly with included thermostat - fits various vehicle models
2002BMW325xi2.5LL6Engine BlockEngine Coolant Thermostat Housing Assembly with included thermostat - fits various vehicle models
2002BMW330Ci3.0LL6Engine BlockEngine Coolant Thermostat Housing Assembly with included thermostat - fits various vehicle models
2002BMW330i3.0LL6Engine BlockEngine Coolant Thermostat Housing Assembly with included thermostat - fits various vehicle models
2002BMW330xi3.0LL6Engine BlockEngine Coolant Thermostat Housing Assembly with included thermostat - fits various vehicle models
2002BMW525i2.5LL6Engine BlockEngine Coolant Thermostat Housing Assembly with included thermostat - fits various vehicle models
2002BMW530i3.0LL6Engine BlockEngine Coolant Thermostat Housing Assembly with included thermostat - fits various vehicle models
2002BMWX53.0LL6Engine BlockEngine Coolant Thermostat Housing Assembly with included thermostat - fits various vehicle models
2002BMWZ32.5LL6Engine BlockEngine Coolant Thermostat Housing Assembly with included thermostat - fits various vehicle models
2002BMWZ33.0LL6Engine BlockEngine Coolant Thermostat Housing Assembly with included thermostat - fits various vehicle models
2001BMW320i2.2LL6Engine BlockEngine Coolant Thermostat Housing Assembly with included thermostat - fits various vehicle models
2001BMW323i2.5LL6Engine BlockEngine Coolant Thermostat Housing Assembly with included thermostat - fits various vehicle models
2001BMW325Ci2.5LL6Engine BlockEngine Coolant Thermostat Housing Assembly with included thermostat - fits various vehicle models
2001BMW325i2.5LL6Engine BlockEngine Coolant Thermostat Housing Assembly with included thermostat - fits various vehicle models
2001BMW325xi2.5LL6Engine BlockEngine Coolant Thermostat Housing Assembly with included thermostat - fits various vehicle models
2001BMW330Ci3.0LL6Engine BlockEngine Coolant Thermostat Housing Assembly with included thermostat - fits various vehicle models
2001BMW330i3.0LL6Engine BlockEngine Coolant Thermostat Housing Assembly with included thermostat - fits various vehicle models
2001BMW330xi3.0LL6Engine BlockEngine Coolant Thermostat Housing Assembly with included thermostat - fits various vehicle models
2001BMW525i2.5LL6Engine BlockEngine Coolant Thermostat Housing Assembly with included thermostat - fits various vehicle models
2001BMW530i3.0LL6Engine BlockEngine Coolant Thermostat Housing Assembly with included thermostat - fits various vehicle models
2001BMWX53.0LL6Engine BlockEngine Coolant Thermostat Housing Assembly with included thermostat - fits various vehicle models
2001BMWZ32.5LL6Engine BlockEngine Coolant Thermostat Housing Assembly with included thermostat - fits various vehicle models
2001BMWZ33.0LL6Engine BlockEngine Coolant Thermostat Housing Assembly with included thermostat - fits various vehicle models
2000BMW323Ci2.5LL6Engine BlockEngine Coolant Thermostat Housing Assembly with included thermostat - fits various vehicle models
2000BMW323i2.5LL6Engine BlockEngine Coolant Thermostat Housing Assembly with included thermostat - fits various vehicle models
2000BMW328Ci2.8LL6Engine BlockEngine Coolant Thermostat Housing Assembly with included thermostat - fits various vehicle models
2000BMW328i2.8LL6Engine BlockEngine Coolant Thermostat Housing Assembly with included thermostat - fits various vehicle models
2000BMW528i2.8LL6Engine BlockEngine Coolant Thermostat Housing Assembly with included thermostat - fits various vehicle models
2000BMWZ32.5LL6Engine BlockEngine Coolant Thermostat Housing Assembly with included thermostat - fits various vehicle models
2000BMWZ32.8LL6Engine BlockEngine Coolant Thermostat Housing Assembly with included thermostat - fits various vehicle models
1999BMW323i2.5LL6Engine BlockEngine Coolant Thermostat Housing Assembly with included thermostat - fits various vehicle models
1999BMW328i2.8LL6Engine BlockEngine Coolant Thermostat Housing Assembly with included thermostat - fits various vehicle models
1999BMW528i2.8LL6Engine BlockEngine Coolant Thermostat Housing Assembly with included thermostat - fits various vehicle models
1999BMWZ32.5LL6Engine BlockEngine Coolant Thermostat Housing Assembly with included thermostat - fits various vehicle models
1999BMWZ32.8LL6Engine BlockEngine Coolant Thermostat Housing Assembly with included thermostat - fits various vehicle models
Directly replaces or cross-references 9 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
AMS Automotive — 4602Beck/Arnley — 143-0825Dorman - Conduct-Tite — 85955Gates — 33934Motorad — 467-185Quality-Built — 14602SKP — SK90281311530139877Z63001