BMW 1 3 Series F20 F21 F30 Radiator Coolant Vent Pipe Hose Petrol 8507235

The BMW F20 F21 F30 Water Hose Pipe Conduit is an original cooling system component from the Conduits, Hoses, and Pipes group, designed for BMW cars with gasoline engines. Engineered as an OEM part, it ensures proper coolant flow and stable thermal operation of the powertrain. This is a practical solution for users seeking a proven, used component with factory geometry.

Specifications and technical data

• SKU: 8507235
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 8507235
• Substitutable numbers: 17128570061, 8570061, 17128507235, 8507235, 52107243558, 7243558
• Fuel type: Petrol
• Category: Hoses, Lines & Pipes

Purpose and Function in the Cooling System

The water conduit in BMW F20, F21, and F30 models is responsible for the controlled flow of coolant between cooling system components. Its correct shape and internal diameter ensure adequate circulation efficiency, which translates to stable operating temperature for the gasoline engine and reduced risk of overheating.

Thanks to its construction conforming to factory BMW standards, the conduit maintains compatibility with original connectors, clamps, and other system components. This facilitates installation and helps avoid leaks resulting from mismatched universal aftermarket parts.

Benefits of Using an Original BMW Conduit

Replacing a worn-out component with an original water conduit restores proper sealing and flow in the cooling system. Key benefits include:

• factory fit for the cooling system in specific BMW F-series models,
• maintenance of the correct conduit routing within the engine bay,
• reduced risk of rubbing against other components and resulting wear,
• consistency with gasoline engine operating parameters.

For workshops and individual users, this means predictable installation and the ability to maintain the cooling system in accordance with the manufacturer's specifications.

Condition, Verification, and Service Application

This part is from a dismantled vehicle and is offered as a used BMW cooling system conduit. This type of part is particularly useful when the existing conduit has cracked, delaminated, aged, or suffered mechanical damage during other service work in the engine bay.

Before installation, standard service procedures are recommended: checking connection tightness, ensuring correct conduit positioning relative to engine accessories, and bleeding the cooling system after filling with fresh coolant. This allows for full utilization of the part's potential and minimizes the risk of further system interventions.

Part Selection by Numbers and Compatibility

The conduit has a dedicated OEM part number and associated replacement numbers, which facilitates precise identification and selection for specific engine variants. In practice, this means you can verify compatibility with the number found on the old part or in the manufacturer's catalog, without relying solely on the general vehicle model description.

This solution allows workshops or users to reduce the risk of purchasing an incompatible part, which is particularly important for conduits with complex geometries used in modern BMW powertrains.

Expanding Service Work and Additional Materials

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 flexible fluid conduits, rigid guide pipes, or auxiliary cooling system sections, check the available parts in the BMW Conduits, Hoses, and Pipes category.

For more extensive vehicle work, it's also worth ensuring your vehicle's lighting is in good condition – the article: See More and Better – A Complete Guide to Selecting and Replacing Used LED and Xenon Headlights will help you choose used headlights and electrical accessories.