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Mosselman MSL OIL THERMOSTAT for BMW N54 Engines (also N55 E-series)
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Mosselman MSL OIL THERMOSTAT for BMW N54 Engines (also N55 E-series)
No / No
CON5X DROPSHIP
11450 Cherokee Street
A-1
Northglenn CO 80234
United States
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Add Installation Kit
Add Titanium Bolts
Add Installation Kit
Add Titanium Bolts
Pre/special order
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
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20°C/68F Lower Than Stock
Operating temperature 20°C/68F lower than stock.
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Real Thermostat
Equipped with a real thermostat, not an always open solution. (for use in hot and cold climates)
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Rock Solid Housing
Made out of a solid block of high-grade aluminum.
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Quick Installation
Takes only 30 minutes to install.

ABOUT MOSSELMAN
Mosselman Turbo Systems is a Dutch manufacturer of high-quality performance parts designed specifically for use in BMW and Mini cars. If you own a BMW or a Mini, you can bet your bottom dollar we have the parts you need to make it go faster. Whether it’s intercoolers, turbochargers, downpipes, engine management systems or even full exhausts systems, Mosselman Turbo Systems has a wide selection of carefully made performance parts for your car.
Furthermore, Mosselman Turbo Systems has been in the tuning business for over 40 years and the vast majority of our products has been designed, tested and manufactured in-house. These are our products and we stand by them.
You can Download the Installation Manual here.
Compatability MSL Oil Thermostat N54 | Type | Engine | Note |
---|---|---|---|
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 |
The items installed or applied to vehicles are intended strictly foroff-road use onlyandtrack vehicles. These modifications may not comply with emissions, safety, or environmental regulations required for public road use underEnvironmental Regulatory Agency (ERA)laws. It is the sole responsibility of the vehicle owner or operator to ensure adherence to all applicable local, state, and federal regulations. Use on public roads may result in legal penalties or vehicle impoundment. Always verify compliance with local authorities before installation.
We get a large number of custom orders and requests everyday, so as a result it is not always possible for us to keep every item in stock at all times in our warehouse. If you require the item urgently please contact our sales team here to check the stock before you make your purchase.
If you're unsure whether a part will fit your vehicle, feel free tocontact us herewith your inquiry. Our helpful sales team will reach out to confirm if it's the right match for you.
We offer a flat-rate shipping fee across thecontinental United States. This excludes Alaska, Hawaii, and U.S. territories. For international orders, additional shipping costs will apply. Please contact us for a quote if you are outside the continental U.S.
Also, feel free to also contact us at ColoradoN5X@Gmail.Com for any other questions.
Not all items are covered by warranty. Items including warranty, will clearly state that there is warranty within the product description. Most of these items will be a standard 1-year warranty against manufacture defects. You, the customer, will be responsible for shipping and handling. We will fix/replace that item with a product that is in working condition if you meet the warranty criteria. Please note that you will be allowed ONLY 1 claim within the year for that product. ColoradoN5X is not responsible for any damage caused during the installation of our products.
PLEASE NOTE
- Orders with both in-stock and backorder or out-of-stock products will be dispatched once all products are available to ship together.
- Contact our sales team if you want your parts fitted to your vehicle at our London workshop.
- Shipping estimates are based on courier delivery times and don't include time to despatch from our warehouse.