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BMW Thermostats

BMW thermostats are known to fail, but luckily they typically fail wide open - meaning that your car can still cool. We offer thermostats from various OE suppliers we trust along with upgraded motorsport specific thermostats where applicable to make sure your BMW stays cool on track.
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Mosselman S55 Billet Oil Thermostat - Silver - BMW F8X S55 3.0L
Mosselman S55 Billet Oil Thermostat - Silver - BMW F8X S55 3.0L ...
Mosselman Turbosystems - Corporate Logo
T#:4621129
Part#: OTS55.T85
In Stock
$ 459.00 USD
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$ 459.00 USD
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**** DOES NOT INCLUDE HARDWARE ****** The S55 engine is no stranger to oil cooling problems, that’s why we recommend installing the MSL Oil Thermostat. The standard oil thermostat will reach around 120 degrees Celsius with a normal driving style. The MSL Oil Thermostat will open at a lower temperature than the standard oil thermostat (at 85 degrees Celsius) and will keep the temperature stable between 95 and 105 degrees Celsius. Installing the MSL thermostat ensures a cooler oil temperature which will result in more stable performance, but above all this improves the reliability of the engine. It is recommended to install the thermostat, especially for cars that are tuned. The Thermostat is plug-and-play and made out of a solid block of high-grade aluminum at our own facility. It is equipped with a real thermostat, not an always open solution. The oil will still reach the operating temperature at the same time as a stock thermostat Features Include: 20°C/68F Lower Than Stock Rock Solid Housing - CNC machined housing. Real Thermostat - Equipped with a real thermostat, not an always open solution. For use in hot and cold climates Quick Installation - Takes only 30 minutes to install.
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N54 & E8x/E9x N55 Mosselman Billet Oil Thermostat
N54 & E8x/E9x N55 Mosselman Billet Oil Thermostat
For Gasket/Install kit see T#4799665
Mosselman Turbosystems - Corporate Logo
T#:4621131
Part#: OTN54.T85
In Stock
$ 379.99 USD
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$ 379.99 USD
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The N54 engine is no stranger to oil cooling problems, that’s why we recommend installing the MSL Oil Thermostat. The standard oil thermostat will reach around 120 degrees Celsius with a normal driving style. The MSL Oil Thermostat will open at a lower temperature than the standard oil thermostat (at 85 degrees Celsius) and will keep the temperature stable between 95 and 105 degrees Celsius. Installing the MSL thermostat ensures a cooler oil temperature which will result in more stable performance, but above all this improves the reliability of the engine. It is recommended to install the thermostat, especially for cars that are tuned.
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N55 Mosselman Billet Oil Thermostat
N55 Mosselman Billet Oil Thermostat
Mosselman Turbosystems - Corporate Logo
T#:4621130
Part#: OTN55.T85
In Stock
$ 399.99 USD
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$ 399.99 USD
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**** DOES NOT INCLUDE HARDWARE ****** Hardware - ES4772301 The N55 engine is no stranger to oil cooling problems, that�s why we recommend installing the MSL Oil Thermostat. The standard oil thermostat will reach around 120 degrees Celsius with a normal driving style. The MSL Oil Thermostat will open at a lower temperature than the standard oil thermostat (at 85 degrees Celsius) and will keep the temperature stable between 95 and 105 degrees Celsius. Installing the MSL thermostat ensures a cooler oil temperature which will result in more stable performance, but above all this improves the reliability of the engine. It is recommended to install the thermostat, especially for cars that are tuned. The Thermostat is plug-and-play and made out of a solid block of high-grade aluminum at our own facility. It is equipped with a real thermostat, not an always open solution. The oil will still reach the operating temperature at the same time as a stock thermostat Features Include: 20�C/68F Lower Than Stock Rock Solid Housing - CNC machined housing. Real Thermostat - Equipped with a real thermostat, not an always open solution. For use in hot and cold climates Quick Installation - Takes only 30 minutes to install.
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Mosselman Billet Oil Thermostat With Installation Kit
Mosselman Billet Oil Thermostat With Installation Kit
Mosselman Turbosystems - Corporate Logo
T#:27338734
Part#: OTN54.T85KT
In Stock
$ 434.99 USD
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$ 434.99 USD
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The N54 engine is no stranger to oil cooling problems, that’s why we recommend installing the MSL Oil Thermostat. The standard oil thermostat will reach around 120 degrees Celsius with a normal driving style. The MSL Oil Thermostat will open at a lower temperature than the standard oil thermostat (at 85 degrees Celsius) and will keep the temperature stable between 95 and 105 degrees Celsius. Installing the MSL thermostat ensures a cooler oil temperature which will result in more stable performance, but above all this improves the reliability of the engine. It is recommended to install the thermostat, especially for cars that are tuned.
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Febi Thermostat Housing - E34, E36, Z3
Febi Thermostat Housing - E34, E36, Z3
We Price Match - Give Us A Call or Chat!
Febi - Corporate Logo
T#:381790
Part#: 11531722531
In Stock
$ 53.42

This product was last offered at the strikethrough price on
09-04-2026

$ 32.99 USD
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$ 32.99 USD
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Replacement plastic thermostat housing
Water Temperature Sensor
Water Temperature Sensor
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Febi - Corporate Logo
T#:591533
Part#: 13628602086
Ships in 1-2 days
$ 33.99

This product was last offered at the strikethrough price on
05-07-2026

$ 32.99 USD
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$ 32.99 USD
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Febi Thermostat - 88°C - E30, E34, E36, Z3
Febi Thermostat - 88°C - E30, E34, E36, Z3
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Febi - Corporate Logo
T#:382407
Part#: 11537511580
Ships on Jan 21, 2027
$ 32.99 USD
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$ 32.99 USD
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Includes sealing O-ring gasket
Febi Thermostat - 71°C - E10, E21, E30
Febi Thermostat - 71°C - E10, E21, E30
We Price Match - Give Us A Call or Chat!
Febi - Corporate Logo
T#:381782
Part#: 11531253249
Ships on Jan 21, 2027
$ 49.99 USD
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$ 49.99 USD
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Includes a complete housing
Febi Thermostat - 80C - E30, E32, E34
Febi Thermostat - 80C - E30, E32, E34
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Febi - Corporate Logo
T#:381785
Part#: 11531713040S1
Back Ordered
$ 35.99 USD
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$ 35.99 USD
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Includes sealing O-ring
Febi Thermostat O-Ring - E23, E24, E28, E30, E32, E34, E36, E39, Z3
Febi Thermostat O-Ring - E23, E24, E28, E30, E32, E34, E36, E39, Z3 ...
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Febi - Corporate Logo
T#:360569
Part#: N90136802
Ships on Nov 19, 2026
$ 1.59 USD
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$ 1.59 USD
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Ensure a proper seal when installing your new thermostat
Thermostat Housing W/ Cap
Thermostat Housing W/ Cap
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Febi - Corporate Logo
T#:591880
Part#: 11537829959
Ships in 1-2 days
$ 45.99 USD
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$ 45.99 USD
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N55 Mosselman Billet Oil Thermostat - Black
N55 Mosselman Billet Oil Thermostat - Black
Mosselman Turbosystems - Corporate Logo
T#:50101777
Part#: 30210057
Ships in 8 Business Days
$ 399.00 USD
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$ 399.00 USD
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The N55 engine is no stranger to oil cooling problems, that’s why we recommend installing the MSL Oil Thermostat. The standard oil thermostat will reach around 120 degrees Celsius with a normal driving style. The MSL Oil Thermostat will open at a lower temperature than the standard oil thermostat (at 85 degrees Celsius) and will keep the temperature stable between 95 and 105 degrees Celsius. Installing the MSL thermostat ensures a cooler oil temperature which will result in more stable performance, but above all this improves the reliability of the engine. It is recommended to install the thermostat, especially for cars that are tuned.
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Coolant Thermostat
Coolant Thermostat
Febi - Corporate Logo
T#:55857769
Part#: 11537598865
Special Order: No Guaranteed ETA
New Item
$ 68.99 USD
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$ 68.99 USD
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This replacement thermostat from Febi Bilstein ensures your cooling system regulates precisely at the proper factory temperature parameters.
Thermostat With Housing, Seal And Temp Sensor
Thermostat With Housing, Seal And Temp Sensor
Febi - Corporate Logo
T#:56291021
Part#: 11537647305
Special Order: No Guaranteed ETA
New Item
$ 132.99 USD
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$ 132.99 USD
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This Febi Bilstein Thermostat Assembly provides OE-level thermal precision to keep your cooling system operating exactly as it should.
Thermostat With Housing
Thermostat With Housing
Febi - Corporate Logo
T#:56001956
Part#: 11538635689
Special Order: No Guaranteed ETA
New Item
$ 126.99 USD
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$ 126.99 USD
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This Febi Bilstein thermostat assembly is the perfect solution for maintaining correct cooling system pressures and temperatures on the street or the track.
Thermostat With Housing & Gasket
Thermostat With Housing & Gasket
Febi - Corporate Logo
T#:56544033
Part#: 11537586885
Special Order: No Guaranteed ETA
New Item
$ 68.99 USD
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$ 68.99 USD
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This Febi Bilstein electronic coolant thermostat assembly delivers factory-level thermal control to keep coolant temperatures stable across varying engine loads.
BMW Thermostat
BMW Thermostat
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Febi - Corporate Logo
T#:16242199
Part#: 11537601158
Special Order: No Guaranteed ETA
$ 209.99 USD
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$ 209.99 USD
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Thermostat Housing With Sealing Ring
Thermostat Housing With Sealing Ring
Febi - Corporate Logo
T#:56616332
Part#: 1151860136X
Special Order: No Guaranteed ETA
New Item
$ 64.99 USD
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$ 64.99 USD
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Maintain consistent temperatures both on the street or pushing your vehicle on the track with this OEM-quality thermostat housing from Febi Bilstein.
Thermostat - E90 335d and X5 xDrive35d
Thermostat - E90 335d and X5 xDrive35d
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Febi - Corporate Logo
T#:2742
Part#: 11517805811
Special Order: No Guaranteed ETA
$ 47.99 USD
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$ 47.99 USD
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Don't take chances! Proper maintenance is required to keep your BMW performing at peak levels. The thermostat basically controls when your car will overheat. This thermostat fits BMW E90 335d and E70 X5 xDrive35d with the diesel engine.

Since the late 1800’s Febi has been fabricating replacement metal parts. This history is self evident in the quality and vast amount of applications they service. With more than 34,000 repair solutions for cars and commercial vehicles you can be sure Febi has you covered.

This item fits the following BMWs:
2009+ E90 BMW 335d
2009+ E70 BMW X5 xDrive35d
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