BMW E39 E46 E60 E65 E53 E83 E36 Coolant Thermostat Housing 1437040

BMW E39 E46 E60 E65 E53 E83 E36 Coolant Thermostat 1437040 is an original part from the Thermostats and Housings category, designed for the engine cooling system in a wide range of BMW models. Its precise construction ensures stable operation of the cooling system, which translates to a safe operating temperature for the power unit and correct combustion characteristics. This is a solution for users looking for a proven, factory component with predictable operating parameters.

Specifications and technical data

• SKU: 1437040
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 1437040
• Substitutable numbers: 11531437040, 1437040, 11531436823, 1436823, 1436824
• Category: Thermostats & Housings

Application in BMW Models

The presented coolant thermostat is designed for popular BMW series: E39, E46, E60, E65, E53, E83, and E36. This includes classic sedans as well as touring and SUV versions, where maintaining a stable engine operating temperature under various load conditions is crucial.

Thanks to its compatibility with multiple vehicle generations, the part will be suitable for both daily driven cars and vehicles used more intensively, where the cooling system operates under higher thermal load.

Technical Characteristics and Function in the Cooling System

The thermostat is responsible for controlling the flow of coolant between the engine block and the radiator, maintaining the operating temperature within the optimal range. A properly functioning component:

• accelerates reaching operating temperature after startup,
• stabilizes temperature during city and highway driving,
• reduces the risk of overheating the power unit,
• supports maintaining correct combustion parameters and accessory operation.

As a part from the Thermostats and Housings group, the component works with other elements of the cooling system, such as the water pump, radiator, and hoses, creating a cohesive temperature regulation system.

Original Origin and Replacement Numbers

The product comes from the BMW line, which means it retains the factory geometry, mounting points, and thermostat opening characteristics. The part has a dedicated OEM number and assigned replacement numbers, which facilitates verification of compatibility with a specific engine version and vehicle year. This allows for precise selection of the thermostat for your model, minimizing the risk of installation problems.

Condition, Selection, and Installation

The offered thermostat is a used part, allowing for economical repair of the cooling system while maintaining the original manufacturer's specifications. Before installation, a standard check of the housing's seal and the condition of the connection sockets is recommended, as well as the use of a new gasket compatible with the specific engine.

When selecting, it is advisable to compare the markings with the currently installed component and to consult the OEM part number and reference numbers. If in doubt, it is a good idea to consult a mechanic or the store's technical department to confirm compatibility with your specific engine variant.

Why Choose This Coolant Thermostat

Replacing the thermostat with an original BMW component allows for maintaining the engine's factory heating and cooling characteristics, which is important for the durability of the power unit and driving comfort. This is particularly important in models used for many years, where a stable operating temperature reduces the risk of damage to seals, the cylinder head, or accessories.

If you also need other BMW Thermostats and Housings, check the available products in our catalog: BMW Thermostats and Housings.

When deciding whether to opt for a used or refurbished part, the following guide article may be helpful: Refurbished or Used Original – Which Part to Choose for Repairs?, in which we discuss the practical differences between these solutions using examples of popular BMW components.