Mosselman MSL E-Series N54/N55 Oil Thermostat

Mosselman

$367.00 $386.70 Save $19.70

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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, depending on the car model. 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.

Note: The Oil Thermostat Installation kit prevents the Oil Thermostat from leaking and is highly recommended when installing the MSL Oil Thermostat. The kit includes 2 x O-ring for the oil hose and 1x rubber oil filter housing gasket. We advise to add it to your order. 

MSL OIL THERMOSTAT

The next level of temperature control

  • 20°C/68F Lower Than Stock
    Operating temperature 20°C/68F lower than stock.
     
  • Real Thermostat
    Equipped with a real thermostat, not an always open solution. (for use in hot and cold climates)
     
  • Rock Solid Housing
    Made out of a solid block of high-grade aluminum.
     
  • Quick Installation
    Takes only 30 minutes to install.

Vehicle fitment:

BMW 135i E82 N54  
BMW 135i E82 N55 This is an N55 engine, but it needs the N54 thermostat to make it fit into the car!
BMW 1M E82 N54  
BMW 335i E90 N54  
BMW 335i E90 N55 This is an N55 engine, but it needs the N54 thermostat to make it fit into the car!
BMW Z4 35i E89 N54  
BMW Z4 LCI 35i E89 N54  
BMW Z4 35is E89 N54