Overview
The OE: 13321720102 fuel filter supports clean and stable fuel delivery for BMW 3 Series diesel vehicles.
It removes fine contaminants from diesel fuel before fuel reaches the high-pressure injection system.
As a result, the engine maintains smooth operation and predictable performance during daily driving.
This fuel filter follows BMW factory specifications for durability and dimensional accuracy.
Compatibility
This fuel filter fits BMW 3 Series models equipped with M47 and selected early N47 diesel engines.
BMW applied these engines across multiple generations of the 3 Series platform.
Therefore, the filter suits vehicles operating in Europe, Asia, the Middle East, Africa, and Latin America.
Its outer dimensions and connection layout match original BMW requirements.
Moreover, technicians can install it directly without modification during scheduled service.
Material / Mechanical Design
The fuel filter features a sealed cylindrical metal housing designed for pressure stability.
In addition, the steel exterior resists corrosion during long-term exposure to diesel fuel.
The inline configuration supports secure hose connections and stable fuel routing.
At the same time, OE-grade sealing surfaces ensure reliable installation.
This construction aligns with BMW diesel fuel system standards.
Fuel Flow Stability & Engine Protection
Stable fuel delivery supports accurate injector operation.
Moreover, consistent filtration helps maintain smooth idling and balanced throttle response.
As a result, the engine delivers steady torque during city driving and highway cruising.
Clean fuel flow also reduces load on the high-pressure fuel pump.
Therefore, the filter supports long-term reliability for BMW diesel engines.
Interchangeable OE Numbers (Cross-Reference)
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13321709535
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13321439407
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13321270038
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WK 5001
Typical Vehicles
Production Range
