11531721002 Thermostat 88°C for BMW E30 E34 E36 3 Series 5 Series | OEM Cooling Part

🌡️ BMW Classic Thermostat (88°C) – OEM 11531721002

Maintain stable engine temperature and preserve the reliability of your classic BMW with the
COWIN OEM-Standard Thermostat. This unit (Ref: 11 53 1 721 002)
operates at a switch point of 88°C and is engineered for
BMW’s most iconic platforms, including the E30, E34, and E36 chassis.

✅ Key Features & Benefits

• Classic BMW Specification: 88°C switch point for original driving feel.
• Wide E-Class Fitment: Covers E30, E34, and E36 generations.
• OEM Replacement: Direct fit for part number 11531721002.
• Durable Construction: Built to withstand high-mileage classic car use.

🚗 Vehicle Compatibility

⚙️ Technical Specifications

• Product: Thermostat
• Switch Point: 88 °C
• OEM Part Number: 11 53 1 721 002 / 11531721002
• Material: Reinforced Polymer / Metal Flange
• Quality: 100% Tested & Calibrated

🛠️ Installation Note

Classic BMW models 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 switch point calibration and long-term reliability.