MAHLE Original TI 31 92 Engine Coolant Thermostat Housing Every MAHLE Original integral thermostat is designed to vehicle manufacturers' (OE) specifications - This integral thermostat is the OE part number for this application With all components combined into the integral thermostat, they are convenient and can be flange-mounted directly onto the engine block The last two or three digits of the MAHLE Original integral thermostat represent the opening temperature of the thermostat in degrees Celsius