BMW F20 F30 F31 LCI Petrol Engine Water Coolant Pipe Hose 8634283

The BMW 1 3 Series F20 F30 F31 LCI Petrol Water Radiator Hose is an original cooling system component designed for BMW models with petrol engines. It ensures stable coolant flow between components, contributing to the safe operating temperature of the engine and reducing the risk of overheating.

Specifications and technical data

• SKU: 8634283
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 8634283
• Substitutable numbers: 17128634283, 8634283
• Fuel type: Petrol
• Category: Coolant Hoses

Application and Function in the Cooling System

This hose belongs to the Cooling System Hoses and Pipes group, responsible for transporting coolant between the radiator, engine, and other circulation elements. Its correct shape and diameter ensure proper fluid flow, minimizing pressure drops and the risk of localized overheating.

The component is dedicated to the LCI facelift versions of the 1 and 3 Series body styles, which allows for maintaining the original hose routing geometry, correct positioning relative to engine accessories, and compatibility with cooling system mounts and spigots.

Benefits of Using an Original BMW Hose

Using an original water hose in BMW petrol engines results in:

• maintaining the manufacturer's designed coolant flow rate,
• proper cooperation with cooling system spigots and connectors,
• stable engine operation within the working temperature range,
• reduced risk of leaks resulting from ill-fitting aftermarket parts.

By adhering to the factory specifications, the hose supports uniform heat dissipation from the engine, which is important for both engine durability and driving comfort in urban conditions and under higher loads.

Installation and Operational Characteristics

The hose is designed for operation in systems powered by petrol, taking into account the typical temperature and pressure ranges for these units. The hose's construction allows for installation in place of the original component without the need for modifications to other parts, which simplifies servicing and reduces vehicle downtime.

The appropriately selected hose material is adapted for contact with coolant and for operation in the engine bay, where variable thermal and mechanical loads occur. Proper hose routing minimizes the risk of rubbing against other components, contributing to longer, predictable service life.

Importance of a Functional Radiator Hose in BMW Petrol Engines

In BMW petrol engines, stable operating temperature is crucial for maintaining performance, smooth operation, and engine longevity. A leaking or degraded hose can lead to fluid loss, overheating, and serious engine damage. Replacing it with the correct part from the Cooling System Hoses and Pipes group restores proper system operating conditions.

To better understand the impact of the cooling system on engine durability and the symptoms of overheating, it is worth reading the guide article Engine Cooling System – Overheating, Repair, and Used Radiators, which discusses practical aspects of diagnostics and servicing.

Expanding the BMW Cooling System – Related Components

If you are planning a comprehensive repair or upgrade of the engine area in your BMW and need other parts from the same group, such as additional hoses, return pipes, or sections connecting the radiator to the engine, check the available parts in the BMW Cooling System Hoses and Pipes category.