BMW F40 116d 118d B37 Complete Fuel Tank Unit Pump Diesel 42L 9895425

BMW F40 116d 118d B37 Complete Fuel Tank Unit Pump Diesel 42L is an original fuel system component designed for diesel engines. This assembly integrates the fuel tank and fuel pump into a single housing, ensuring a stable fuel supply to the engine and the proper operation of the entire system. By maintaining the factory design, the BMW fuel system preserves the correct pressure and flow parameters, which translates into engine performance and operational safety.

Specifications and technical data

• SKU: 9895425
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 9895425
• Substitutable numbers: 9895425, 16119895425, 16117300466, 7300466
• Fuel type: Diesel
• Category: Fuel Tanks & Filler Necks

Purpose and function in the fuel system

The presented fuel tank unit with pump has been designed specifically for BMW F40 models with 116d and 118d engines, running on Diesel fuel. The component is responsible for drawing diesel from the tank, pre-pumping it, and transferring it to other fuel system components, including the high-pressure pump and injectors.

The factory design ensures:

• proper shaping of the working chamber, reducing the risk of air locks at low fuel levels,
• stable engine supply under various driving conditions (acceleration, braking, cornering),
• proper cooperation with the fuel system control electronics.

Benefits of using an original fuel tank unit

Using a complete, original fuel tank unit with pump in a BMW F40 allows for maintaining the performance parameters specified by the vehicle manufacturer. Factory geometry and connection diameters guarantee a correct fit to the existing fuel installation and minimize the risk of leaks. This is particularly important in modern diesel units, where the fuel system operates with high precision.

The main advantages of this solution include:

• maintaining compatibility with the factory engine control system,
• reducing the risk of starting problems and power drops resulting from insufficient fuel supply,
• easier diagnostics in the future thanks to the use of a component compliant with BMW service documentation.

Operational characteristics and installation

The BMW F40 116d 118d B37 Complete Fuel Tank Unit Pump Diesel 42L is intended for diesel fuel systems where stable low-pressure pump operation is required. The modular design facilitates replacement in workshop conditions – the entire unit is removed, which limits the number of connections and potential leak points.

The element comes from disassembly, which means it is a used part that retains the manufacturer's factory specifications. Replacing the complete module is particularly recommended in situations where there are problems with fuel supply, unstable pump operation, or when previous fuel system repairs have not yielded a lasting effect.

Selection by part numbers and fuel system compatibility

The selection of the appropriate fuel tank unit with pump for a BMW F40 should always be verified based on the OEM part number and interchangeable numbers, as well as vehicle data (model, engine version). This allows for confirming full compatibility with the specific fuel system configuration, which is crucial for the durability and reliability of the entire system.

To better understand the role of this component in the entire fuel supply system, it is worth reading the guide describing the diagnostics and operation of fuel components: Fuel system – injectors, pumps, and fuel tank: maintenance and regeneration. The article discusses, among other things, the principles of selecting parts by OEM numbers and typical symptoms of wear.

Expanding the BMW fuel system upgrade

If you are planning a comprehensive repair or upgrade of the fuel supply area in your BMW and need other elements from the same group, such as additional pump modules, tank chamber elements, or filler pipes, check the available parts in the BMW fuel tanks and filler pipes category.