11531264668 Thermostat 80°C for BMW E12 E28 E30 E34 3 Series 5 Series | OEM Cooling Part

🌡️ BMW Classic Thermostat (80°C) – OEM 11531264668

Preserve the original driving character and cooling behavior of your classic BMW with the
COWIN OEM-Standard Thermostat. This unit (Ref: 11 53 1 264 668)
opens at 80°C and is engineered for BMW’s most iconic early platforms,
including the E12, E28, E30, and E34 chassis, covering both 3 Series and 5 Series models.

✅ Key Features & Benefits

• Classic BMW Specification: 80°C opening for authentic early-model cooling behavior.
• Wide E-Platform Fitment: Covers E12, E28, E30, and E34 generations.
• OEM Replacement: Direct fit for part number 11531264668.
• Durable Construction: Built to withstand high-mileage classic car use.

🚗 Vehicle Compatibility

⚙️ Technical Specifications

• Product: Thermostat
• Opening Temperature: 80 °C
• OEM Part Number: 11 53 1 264 668 / 11531264668
• Material: Reinforced Polymer / Metal Flange
• Quality: 100% Tested & Calibrated

🛠️ Installation Note

Classic BMW M10, M20, and M30 engines benefit from a complete cooling system refresh during thermostat replacement.
Always replace the housing gasket and inspect the expansion tank, hoses, and water pump for age-related wear.

🏭 Why Choose COWIN Auto Parts?

COWIN (Gaoyun) specializes in European classic and executive vehicle cooling systems.
Every thermostat is factory-tested for accurate opening temperature and long-term reliability.