BMW 1 3 er E90 E91 E92 E93 N47 Diesel Radiator Bottom Thermostat Hose 7797258

BMW 1 3 er E90 E91 E92 E93 N47 Diesel Radiator Bottom Thermostat Hose is an original cooling system component designed for BMW diesel engines. Thanks to its factory-fit design, it ensures stable coolant flow and proper integration with other system components. It is a practical solution for users who want to restore proper coolant circulation without modifying the vehicle's construction.

Specifications and technical data

• SKU: 7797258
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 17127797258
• Substitutable numbers: 17127797258, 7797258
• Fuel type: Diesel
• Category: Other Interior Parts & Accessories

Purpose and function in the cooling system

The presented water hose is designed for BMW E88, E90, and E91 series models with Diesel engines. Its task is to precisely guide coolant between system components, which helps maintain a stable operating temperature for the engine unit. A properly shaped water pipe reduces the risk of hose kinks, leaks, and flow drops that could lead to engine overheating.

Benefits of using an original hose

Using an original water hose in BMW E88, E90, and E91 models allows you to maintain factory flow parameters and routing geometry in the engine bay. In practice, this means:

• secure fit to cooling system connectors and mounts,
• maintaining proper positioning relative to other components,
• reduced risk of rubbing against body parts or engine accessories,
• easier installation without the need for modifications.

For daily drivers, it is important that the original water hose helps maintain predictable engine operating conditions, which promotes durability and thermal stability under various load conditions.

Characteristics of the used component

The offered BMW water hose comes from dismantling and is sold as a used part. This type of component is a reasonable choice for drivers looking for a compromise between repair costs and maintaining the manufacturer's original specifications. In practice, this allows for an economical replacement of a worn or damaged hose while maintaining factory manufacturing standards.

Selection and compatibility with Diesel engines

The water hose pipe has been prepared for BMW diesel-powered engines. Cooling systems in diesel engines operate under specific thermal loads, which is why the correct choice of hose is important for:

• maintaining proper pressure in the cooling system,
• ensuring continuous fluid flow across the entire RPM range,
• reducing the risk of localized overheating of engine components.

Before purchasing, it is worth comparing the shape and connection points with the currently installed element to ensure that the hose will work properly with your specific engine configuration.

Expanding the BMW cooling system

If you are planning a comprehensive repair or upgrade of the engine area in your BMW and need other elements from the same group, such as additional coolant hoses, connectors, or cooling system fittings, check out the available parts in the Other BMW category.

Expert support and selection of used parts

When choosing components from the secondary market, it is worth paying attention to their origin, visual condition, and compatibility with a specific engine version. For those who want to better prepare for purchasing dismantled components, a guide on common pitfalls when choosing used parts may be helpful – you can find more practical tips in the article Buying used car parts – the most common mistakes when choosing tuning parts.

Additionally, if you are interested in comparing technical solutions used in different brands and sports versions, you can read the analysis of engine, brake, and chassis designs in the article Audi RS vs other models – what is hidden under the hood and chassis?, which will allow you to better understand the importance of properly selected cooling system components in cars with varying performance levels.