BMW X3 Series E83 LCI Pipe Coolant Hose Radiator 3421988

BMW X3 Series E83 LCI Pipe Coolant Hose Radiator is an original cooling system component designed for the facelift version, ensuring stable coolant discharge within the engine. Thanks to the factory fitment for this specific X3 generation, installation is predictable, and the hose geometry remains consistent with the manufacturer's requirements. This is a practical solution for users looking for parts with a proven design that restores proper coolant circulation.

Specifications and technical data

• SKU: 3421988
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 3421988
• Substitutable numbers: 17123421988, 3421988
• Category: Caps

Purpose and function in the cooling system

BMW X3 Series E83 LCI Pipe Coolant Hose Radiator operates within the coolant circuit, connecting system components in a way that ensures proper flow of the working medium. The appropriately selected shape and diameter of the hose reduce the risk of kinking, flow restriction, and local overheating, which is important for the durability of the power unit. Using a dedicated hose instead of universal replacements helps maintain stable thermal conditions across various engine load ranges.

Construction and fitment for the BMW X3 E83 LCI

The component has been designed specifically for the engine bay geometry of the X3 E83 after the facelift, taking into account factory mounting points and hose routing. The appropriate wall stiffness of the hose reduces vibrations and minimizes the risk of rubbing against adjacent components, which is crucial during long-term operation. As a result, the hose maintains a stable position both at idle and during dynamic driving.

Benefits of using an original radiator hose

Using a component from the BMW range allows you to maintain compliance with the factory cooling system specifications, which translates into predictable operating temperatures. In practice, this means a lower risk of leaks at connections, better fitment with connectors, and easier inspection of the hose condition during maintenance. This solution is particularly beneficial when servicing vehicles used intensively or in varied temperature conditions.

Performance characteristics and installation

The radiator hose from this reference, as an item in the Covers category, can be used during standard cooling system maintenance, as well as for replacement after mechanical failure or wear and tear. The design of the hose facilitates installation in workshop conditions, allowing for correct positioning relative to the radiator, engine, and other components. With the proper selection of clamps and adherence to service procedures, a tight, stable connection can be achieved for a long period of use.

If you are planning a comprehensive repair or upgrade of the cooling system area in your BMW and need other elements from the same group, such as covers, overlays, or additional trims, check out the available parts in the BMW Covers category.

For drivers interested in a broader approach to vehicle modification and service, including the selection of used components with higher technical requirements, an article describing the practical aspects of installation and compatibility of Mini sports exhaust systems may be helpful – you can find it here: Second-hand Mini John Cooper Works Pro sports exhaust – a legal way to get a racy sound and +7 HP.