MAHLE TI 238 78 Integral Thermostat Engine Coolant Thermostat with Housing

The MAHLE TI 238 78 is an OE-grade integral engine coolant thermostat engineered to vehicle manufacturers' original equipment specifications. This all-in-one assembly integrates the thermostat, thermostat housing, and gasket or seal into a single, convenient unit — eliminating the need to source multiple components separately.

The trailing digits in the MAHLE Original part number system directly indicate the thermostat's opening temperature: the TI 238 78 begins to open at 78°C (172°F), allowing the engine to reach and maintain its optimal operating temperature efficiently. The integral design allows for direct flange-mounting to the engine block, simplifying installation and ensuring a leak-free fit.

Key Features:

• Designed to OE (original equipment) specifications — this is the OE part number for this application
• Integral design combines thermostat, thermostat housing, and seal/gasket in one assembly
• Opening temperature: 78°C (172°F)
• Flange-mounts directly to the engine block for straightforward installation
• Gasket or seal included
• All-new components — no remanufactured parts

Cross-Reference Part Numbers: Stant 48767, Motorad 554-170, Gates 34050, Honda 19301-RAA-A01, Honda 19301-RAA-A02, MAHLE TI23878

MAHLE Original thermostats are trusted by OEMs and professional technicians worldwide to deliver precise coolant temperature regulation, helping minimize engine wear and emissions while maximizing efficiency.