MSL Oil Thermostat

The next level of temperature control

The MSL Oil Thermostat is a highly recommended upgrade for N54, N55 and S55 engines, especially when they’re tuned. Instead of opening at 105℃, the MSL Oil Thermostat opens at 85℃ which results in an operational oil temperature 20℃ lower than OEM. The MSL Oil Thermostat allows the engine to reach operating temperature in the same time as a stock thermostat. Exact temperatures can differ slightly depending on engine type.

MSL Oil Thermostat N55

Lasting Quality

The MSL Oil Thermostat is beautifully designed and made out of a solid block of high-grage aluminium at our own facility.

The thermostat is an important part of the complete MSL Oil Cooler Kit for the E-series, but can also be combined with the standard oil cooler on F-series N55 and S55 engines.

Rock Solid Housing

CNC machined housing.

Essential For Tuners

Keeps your engine cool and safe.

20°C Lower Than Stock

Operating temperature 20°C lower than stock.

Quick Install

Takes only 30 minutes to install.

Real Thermostat

Equipped with a real thermostat, not an always open solution. *(for use in hot and cold climate)

Overview MSL Oil Thermostat
MSL Oil Cooler Kit

MSL Oil Cooler Kit

The E-series N54 and N55 engines are no strangers to oil cooling problems. That’s why we have included the MSL Oil Thermostat in the Oil Cooler Kit. Along with the higher capacity oil coolers, the improved thermostat ensures that E-series models equipped with N54 and N55 engines stay cool, even during heated conditions.

The MSL Oil Cooler Kits are available as single or twin cooler kits. The single cooler kit replaces the OEM cooler on the right side of the car. Like all of our products, the kit is plug and play and comes with the MSL Oil Thermostat, a Setrab 19 row oil cooler, a stainless MSL bracket and a Goodridge hose kit. The hose kit comes in several color combinations.

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