BMW 3 4 Series F80 M3 F82 M4 Water Cooling Radiator Coolant Hose Line 2284691

BMW 3 4 Series F80 M3 F82 M4 Water Cooling Radiator Coolant Hose Line is a component from the Lines, hoses and pipes group, designed for the cooling system in BMW M-series sports models. It is responsible for the stable flow of coolant, which has a direct impact on the safe operation of the engine and the car's repeatable performance. The used OEM component is a sensible choice for drivers looking for a technically matched solution at an attractive price.

Specifications and technical data

• SKU: 2284691
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 2284691
• Substitutable numbers: 17122284691, 2284691
• Category: Hoses, Lines & Pipes

Purpose and function in the cooling system

The water hose used in the BMW F80 M3 and F82 M4 operates in the coolant circuit, connecting individual system components and ensuring a stable flow of the working medium. A properly selected water hose reduces the risk of engine overheating, leaks, and drops in cooling efficiency during intensive use. For high-performance cars such as the M3 and M4, maintaining an efficient coolant circuit is crucial for the durability of the engine.

Advantages of using an original BMW hose

The original BMW water hose is designed for specific models, ensuring it maintains the correct geometry, diameter, and mounting points. This translates into:

• secure fitment to connectors and joints in the engine bay,
• stable routing of the hose without tension or twisting,
• reduced risk of leaks at the connections,
• preservation of the factory coolant flow concept.

As a result, installation is predictable, and the cooling system can operate under conditions close to factory specifications after the hose replacement. This is particularly important for cars that are frequently under load, e.g., during highway driving or occasional track days.

Used condition and installation aspects

The item is offered in used condition, which allows for an economical repair of the cooling system while maintaining the manufacturer's original specifications. Before installation, a standard visual inspection for any signs of wear is recommended, as well as verification of the sealing surfaces at the ends of the hose. A properly selected and correctly installed water hose helps maintain a stable engine operating temperature and reduces the risk of emergency vehicle downtime.

Part selection by numbers and integration with other components

The water hose for the BMW F80 M3 and F82 M4 should always be selected based on the manufacturer's catalog data, part numbers, and the configuration of the specific vehicle. This helps avoid issues with the length, diameter, or shape of the hose. Replacing one component of the cooling system is a good time to check other lines, hoses, and pipes, as well as the condition of connectors, clamps, and fittings, which reduces the risk of further service interventions in the near future.

If you are planning a comprehensive repair or upgrade of the cooling system area in your BMW and need other components from the same group, such as flexible water hoses, rigid coolant pipes, or connecting hose sections, check the available parts in the BMW lines, hoses and pipes category.

Additional technical support and knowledge

When working with the cooling system and other engine components, it is worth using reliable technical materials and checklists that help plan the scope of work and avoid common installation errors. Practical tips on component selection, verifying OEM numbers, and checking compatibility with a specific engine version can be found in the article BMW B58 code, or 340 HP from the secondary market – a checklist before buying a turbocharger and intercooler for the BMW 3 Series (G20), which provides useful supplementary knowledge also when planning other modifications and repairs in BMW cars.