Dorman 902-818 | Engine Coolant Thermostat Housing Assembly

Part Number
Integrated Thermostat Housing Assembly With Sensor

Fits: 96-98 BMW 740iL, 97-98 BMW 540i, 97-98 BMW 740i

Special Price $43.97 Regular Price $51.73
In stock
Only 10 left
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Estimated Ship Date: 1 Business Day or Less

This replacement engine coolant thermostat housing assembly is engineered to match the fit and durability of the stock housing assembly on specified vehicles. It is designed to withstand extreme temperature changes to extend service life.

BRAND: Dorman - OE Solutions


  • BMW 540i 1998-97, BMW 740i 1998-97, BMW 740iL 1998-96
  • Cost-effective and reliable - offers original manufacturer quality at lower cost than getting replacement at dealer
  • Durable construction - this part is specifically designed to withstand extreme temperature changes and resist cracking and leaking
  • Ideal replacement - this engine coolant thermostat housing assembly directly replaces the original water outlet on specified vehicle years, makes and models
  • Coolant, Thermostat, Housing, Assembly, Thermostats, Housings, Assemblies
  • Industry-leading design - professionally engineered by the aftermarket leader in replacement thermostat housing assemblies
  • Integrated Thermostat Housing Assembly With Sensor


Bleeder HoleNo
Bolt Hole Center To Bolt Hole Center2.74 in; 2.79; 2.76 in; 2.71 in
Flange Length3.31
Flange Thickness0.398
Flange Width3.31
Gasket Or Seal IncludedYes
Gasket TypeGasket
Grade TypeRegular
Inside Diameter1.36
Mounting Hardware IncludedNo
Mounting Hole Quantity4
Outlet Port Quantity1
Package Contents1 Thermostat Housing Assembly; 1 Sensor
Thermostat IncludedYes
Thermostat Opening Temperature221 Deg. F.

CoverIncludes Thermostat



  • BMW: 11531437526
  • Skyward Automotive Products LLC: SK902818
  • GATES: 34727
  • STANT: 49502
  • TECHSMART: Z63006
  • Beck/Arnley: 143-0891
  • CST: 47021
  • MOTORAD: 470-221
  • FOUR SEASONS: 85959


  • 1997-1998 BMW 740i - Position: Water Pump
  • 1997-1998 BMW 540i - Position: Water Pump
  • 1996-1998 BMW 740iL - Position: Water Pump
Customer Questions
Can I use Dorman parts to replace OEM parts?
Yes, Dorman parts can often be used as replacements for OEM parts, but it is important to carefully compare specifications and ensure compatibility.
How do I install Dorman shift linkage bushing?
To install a Dorman shift linkage bushing, first locate the old bushing and remove it if necessary. Apply lubricant to the Dorman bushing and slide it onto the shift linkage, tapping it into place with a soft tool until fully seated. Check the alignment and function of the shift linkage after installation.
Where is Dorman manufactured?
Dorman is a global automotive parts supplier with manufacturing facilities in the United States, Mexico, Canada, China, and India. Its headquarters and largest manufacturing facility are located in Colmar, Pennsylvania, USA.
When to replace the engine coolant thermostat?
The engine coolant thermostat should be replaced if it is not functioning properly or as a preventive maintenance measure after a certain mileage or time interval.
What is an engine coolant thermostat?
An engine coolant thermostat is a component that regulates the flow of coolant through the engine to maintain optimal operating temperature.
Will the engine coolant temperature sensor keep the car from starting?
In most cases, a malfunctioning engine coolant temperature sensor (ECT sensor) will not prevent the car from starting. The engine coolant temperature sensor (ECT sensor) is responsible for monitoring the temperature of the engine coolant and sending that information to the engine control unit (ECU). The ECU uses this information to make adjustments to the fuel mixture and ignition timing for optimal engine performance.
Does PartsHawk carry an engine coolant thermostat for Mazda 6?
Yes, PartsHawk carries an Engine Coolant thermostat for Mazda 6
Please, mind that only logged in users can submit questions

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