BMW G20 G22 Water Hose Radiator Coolant Cooling Tube Pipe Line 8597301

BMW G20 G22 Water Hose Radiator Coolant Cooling Tube Pipe Line is an original cooling system component designed to work with coolant in modern BMW engines. Thanks to its factory geometry and precise fitment to the radiator and engine ports, it ensures stable coolant flow and helps maintain the proper operating temperature. This used OEM part is a sensible choice for maintenance when you want to ensure reliable fitment and maintain the factory parameters of the system.

Specifications and technical data

• SKU: 8597301
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 8597301
• Substitutable numbers: 8597301, 17128597301
• Category: Coolant Hoses

Purpose and function in the cooling system

This water hose is part of the coolant circulation circuit between the radiator and the engine in BMW G20 and G22 series models. It is responsible for:

• transporting pressurized coolant to and from the radiator,
• maintaining connection tightness in critical areas of the engine bay,
• stabilizing the engine temperature during city and highway driving.

By maintaining the original diameter and shape, the hose works with factory clamps and ports, which reduces the risk of leaks and facilitates installation.

Construction and fitment for BMW

The hose belongs to the Cooling system hoses and pipes group, meaning it has been designed to operate in high-temperature and variable-pressure environments. Characteristic features of this component include:

• a profile tailored for routing in the BMW G20 / G22 engine bay,
• ends prepared for compatibility with factory cooling system connectors,
• a design intended for use with coolant fluids used in modern BMW engines.

Its original BMW origin promotes the maintenance of proper hose rigidity, which limits "ballooning" under pressure and improves the stability of the entire system.

Condition of the part and benefits of choosing used OEM

The offered hose is a used part, sourced from disassembly. This type of OEM part is a good solution when you want to:

• maintain factory hose routing and original mounting points,
• avoid fitment issues associated with aftermarket replacements of different geometry,
• optimize repair costs while maintaining manufacturer quality.

Before installation, a standard inspection of tightness, the condition of the ports, and the surfaces interacting with the clamps is recommended to ensure the cooling system operates stably and without leaks after reassembly.

Operation and service tips

When replacing a cooling system hose, it is worth paying attention to several service aspects:

• checking the condition of other hoses and pipes in the cooling circuit,
• verifying clamps and ports for corrosion or damage,
• bleeding the system after refilling with fresh coolant.

If you want to better understand the impact of hoses and the radiator on engine durability, check out the article Engine cooling system – overheating, repair, and used radiators, which discusses typical symptoms of overheating and the importance of an efficient coolant circuit.

BMW cooling system expansion

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