BMW E65 E66 Fuel Expansion Tank Petrol Carbon Canister Fuel Tank 6752451

BMW E65 E66 Fuel Expansion Tank Petrol Carbon Canister Fuel Tank is a specialized fuel system component designed for BMW vehicles, engineered to ensure stable operation of the petrol supply system. This used component from the Fuel tanks and filler pipes category allows for a technical, cost-effective, and safe replacement of a damaged part without interfering with the vehicle's structure.

Specifications and technical data

• SKU: 6752451
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 16117204232
• Substitutable numbers: 16117204232, 7204232, 16137177200 16136752451 16134401346, 7177200, 6752451, 4401346, 6752860, 6752864, 718409, R1675245101, 7524510
• Fuel type: Petrol
• Category: Other Air & Fuel Delivery

Purpose and function in the fuel system

The presented fuel expansion tank is responsible for maintaining proper operating conditions for the petrol supply system in the BMW E65 series. Its task is to stabilize fuel flow, compensate for volume changes, and support the correct operation of other system components, such as the fuel pump or supply lines.

Thanks to its precisely designed construction, the tank helps reduce the risk of airlocks, pressure fluctuations, and unwanted disruptions in fuel delivery to the engine. This is particularly important in BMW-class vehicles, where precise fuel metering translates into engine performance and predictable vehicle behavior.

Construction and fitment for the BMW E65

The element has been designed as part of the Fuel tanks and filler pipes system, which means it is factory-fitted to the body geometry and existing mounts in the BMW E65. The appropriate shaping of the connection ports facilitates the correct attachment of fuel and vent lines, minimizing the risk of leaks after installation.

Its original BMW OE origin ensures compliance with the manufacturer's requirements regarding materials, resistance to petrol, and operating conditions in the chassis compartment. As a result, the tank can work with factory equipment without the need for modifications or the use of additional adapters.

Benefits of using a pre-owned OEM component

Choosing a used expansion tank for the BMW E65 is a solution that allows you to balance cost control with high-quality installation. An original aftermarket component:

• maintains factory mounting points and line routing,
• ensures compatibility with the petrol fuel system,
• reduces the risk of fitment issues typical of low-quality replacements.

For workshops and individual users, this means more efficient replacement, shorter vehicle downtime, and predictable fuel system behavior after repair.

Selection by part numbers and fuel system integration

The item has a dedicated OEM part number and associated interchangeable numbers, which facilitates precise identification and selection of the correct tank for a specific BMW E65 configuration. In practice, this helps avoid installing an incorrect variant and the associated problems with geometry, mounts, or connection diameters.

To better understand the role of this type of component in the entire supply system, it is worth checking out the guide on diagnostics and operation of the fuel system – it discusses injectors, pumps, and fuel tanks in detail, as well as selecting parts by VIN and OEM numbers: Fuel system – injectors, pumps, and fuel tank: maintenance and regeneration.

Application area and BMW fuel system expansion

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

Summary

BMW E65 E66 Fuel Expansion Tank Petrol Carbon Canister Fuel Tank is a technically matched, used OEM component that allows you to restore the proper operation of the petrol supply system without interfering with the vehicle's structure. Using an original component from the Fuel tanks and filler pipes category supports fuel pressure stability, improves operational safety, and represents a sensible choice for professional repair of BMW E65 series vehicles.