BMW 3 Series E90 E91 LCI E92 N57 Hose Cooling Lower Thermostat Radiator 7800100

BMW E90 E91 LCI E92 N57 Water Hose Pipe Tube is a cooling system component from the Hoses, Pipes & Tubes category, designed for use in BMW cars with an N57 engine. A used genuine part ensures proper coolant flow, stable engine operation, and compliance with the factory system design.

Specifications and technical data

• SKU: 7800100
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7800100
• Substitutable numbers: 17127800100, 7800100, EM
• Category: Hoses, Lines & Pipes

Purpose and Fitment for BMW with N57 Engine

The BMW Water Hose for E90, E91 LCI, and E92 models with the N57 unit is designed as a factory cooling system component. Its geometry and connection diameters are adapted to the standard spigots and mounts in the engine bay, which facilitates installation and reduces the risk of leaks.

Using a hose that complies with the manufacturer's design allows for maintaining proper coolant circulation, which is important for:

• stable operating temperature of the N57 engine,
• protection against overheating under load,
• maintaining correct operation of accessories cooperating with the cooling system.

Technical Characteristics of the Water Hose

This hose belongs to the group of elements such as Hoses, Pipes & Tubes, responsible for transporting coolant between individual system components. The hose's construction is adapted to the operating conditions in the engine bay, taking into account temperature changes and engine vibrations.

A properly shaped water pipe helps in:

• maintaining proper fluid flow without kinks or restrictions,
• maintaining clearance from other components,
• reducing stress at connection points with spigots.

Part Condition and Benefits of Choosing a Used Part

The offered BMW water hose is from the aftermarket and is designated as a used genuine part. This type of part allows for maintaining factory fitment while reducing costs compared to a new component.

Choosing a used water hose can be beneficial when:

• the existing part has suffered mechanical damage or shows signs of leakage,
• maintaining original geometry and compatibility with the cooling system is a priority,
• you are looking for an economical solution that is still compliant with BMW's design.

Why Choose a Genuine BMW Hose

A genuine BMW water hose for the E90, E91 LCI, and E92 series with the N57 engine ensures consistency with other cooling system components. This minimizes the risk of installation problems and the need for modifications, which often arise with aftermarket parts of different geometries.

The product is identified in our system by the SKU designation, and compliance with the factory system is confirmed by the OEM part number and available interchangeable numbers. The information that this is a BMW brand part facilitates selecting the hose for a specific vehicle configuration, and the condition parameter allows for an informed assessment of the offered part's characteristics.

Other BMW Hoses, Pipes & Tubes and Technical Materials

If you also need other elements from the Hoses, Pipes & Tubes category for this brand, check out the BMW hoses, pipes & tubes available in our store to complete the entire system according to manufacturer requirements.

For those interested in a broader context of premium car modifications and upgrades, we also recommend the article on sporty MINI versions – MINI John Cooper Works – what sets it apart and how to upgrade your MINI?, which shows how to consciously use used components when expanding a car.