BMW 5 Series E39 Petrol Fuel Injection System Hose Pipe Line 1744100

BMW 5 Series E39 Petrol Fuel Injection System Hose Pipe Line is an original component from the Lines, hoses and pipes group, designed for use in the fuel supply system of petrol engines. This is a used BMW part that allows for maintaining the factory fuel flow characteristics and proper cooperation with other components of the fuel injection system.

Specifications and technical data

• SKU: 1744100
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 1744100
• Substitutable numbers: 13311744100, 1744100, EM
• Fuel type: Petrol
• Category: Hoses, Lines & Pipes

Application in the BMW 5 Series E39 fuel injection system

The presented hose is a component of the fuel supply system in the BMW 5 Series E39 model with a petrol engine. It is responsible for the stable routing of fuel between individual components of the injection system, while maintaining proper tightness and resistance to operating pressure. Thanks to its factory geometry and internal diameter, the hose works with stock connectors, which reduces the risk of leaks and incorrect fuel metering.

Construction and technical parameters

The fuel injection system hose has been designed by BMW as a component dedicated to working with petrol fuel. The material and construction are selected for chemical resistance to petrol and typical additives, as well as for thermal loads occurring in the engine compartment. The properly shaped line of the hose facilitates routing it through factory mounting points, which minimizes stress, vibrations, and the risk of abrasion against adjacent elements.

By maintaining the original specification, the hose ensures:

• correct fuel flow cross-section across the entire engine load range,
• compatibility with stock connectors and mounting brackets,
• resistance to typical operating temperatures in a petrol engine compartment.

Benefits of using an original BMW hose

Using an original injection hose in the BMW 5 Series E39 allows you to maintain the fuel system's operating parameters in accordance with the manufacturer's assumptions. This is particularly important in the context of stable injector operation, uniform cylinder fueling, and maintaining the correct air-fuel mixture composition. Original geometry and hose diameter limit the risk of fuel pressure drops, which translates into predictable engine response to load.

Choosing a used OEM component is a beneficial solution for users who want to maintain the factory specification of the fuel system while optimizing service costs. This type of hose will work well both in standard operation and with a more dynamic driving style, provided that the other components of the injection system are maintained in good technical condition.

Selection, installation, and compatibility

Before installing the fuel injection system hose in the BMW 5 Series E39, it is recommended to verify compatibility with the specific engine version and the vehicle's fuel system configuration. Manufacturer markings and reference numbers are helpful in this regard, allowing the hose to be matched to the existing installation without the need for modifications. A properly selected hose enables installation at factory mounting points, which shortens service time and reduces the risk of installation errors.

During installation, pay attention to:

• correct positioning of the hose relative to hot and moving elements,
• precise seating of connectors in the injection system sockets,
• leak testing after the first engine start.

System expansion and additional information

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 fuel lines, fuel return hoses, or supply pipes, check the available parts in the BMW Lines, hoses and pipes category.

For those considering fuel system modifications or broader vehicle tuning using aftermarket components, practical tips on selecting and safely using used subassemblies may be useful – you can find them in the article Tuning with used parts – how to gain performance without spending a fortune.