Fleetguard LF3349 Marine Oil Filter

Technische Daten

  • OEM Number: Cummins 3908615, 3903264, 3932217, 3977910
  • MPN: LF3349
  • Filter Media: Cellulose Media
  • Micron Rating: 25 Micron (Nominal)
  • Engine Family:
  • Filter Type: Oil Filter

Dimensions

Outer diameter93
Gasket outer diameter71
Inner diameter62
Thread1–16 UN

Cross References

Donaldson

  • P550388

MANN

  • W950/26

Other

  • BT7349
  • 51794

Compatible Engines

  • Keine kompatiblen Motoren eingetragen.

Application Notes

The LF3349 is used in Cummins marine diesel engines and generator sets, providing stable lube filtration for continuous heavy‑duty operation in large vessel applications.

Additional Notes

The LF3349 is engineered for heavy‑duty marine environments where engines operate for long periods under consistent load. Its robust construction supports extended service intervals when used with OEM‑approved lubricants. Suitable for Cummins marine propulsion engines and auxiliary generator sets, the filter maintains stable oil cleanliness even in high‑temperature, high‑soot operating conditions typical of large vessel diesel systems.

Fleetguard LF3349 Marine Oil Filter

Fleetguard LF3349 Marine Oil Filter is a high-performance spin-on lube filter specifically engineered for demanding marine diesel applications. In the maritime sector, engines operate under continuous heavy load, often for hundreds of hours without shutdown. This places extreme stress on the lubrication system, making reliable oil filtration essential. The Fleetguard LF3349 Marine Oil Filter is designed to maintain stable oil quality, protect engine components, and ensure long-term operational reliability in both propulsion engines and auxiliary generator sets.

Marine diesel engines, especially those used in commercial vessels, tugboats, offshore supply ships, and workboats, require filtration systems that can withstand harsh environmental conditions. High vibration, temperature fluctuations, salt-laden air, and long service intervals are typical challenges in marine engine rooms. The Fleetguard LF3349 Marine Oil Filter is built with a heavy-duty steel housing and corrosion-resistant components to ensure durability even in the most demanding maritime environments. Its robust construction prevents deformation, leakage, or pressure loss, ensuring consistent lubrication performance.

The LF3349 is widely used in Cummins marine diesel engines, particularly in the K-Series, N-Series, and QSK-Series. These engines are known for their reliability in marine propulsion and generator applications, and they rely on stable oil filtration to maintain performance. The LF3349’s advanced filter media captures soot, sludge, metal particles, and other contaminants that accumulate in the lubrication system during operation. By removing these impurities, the filter helps reduce wear on bearings, pistons, camshafts, and other critical engine components.

One of the key advantages of the Fleetguard LF3349 Marine Oil Filter is its spin-on design. Spin-on filters are preferred in marine environments because they allow for quick and easy replacement, minimizing downtime during scheduled maintenance. In engine rooms where space is limited and accessibility can be challenging, the ability to replace a filter without special tools is a major benefit. The LF3349’s reliable sealing system ensures a secure fit, preventing oil leaks and maintaining proper oil pressure throughout the engine’s operating cycle.

The filter’s internal bypass valve is engineered to maintain oil flow even under high contamination loads or during cold starts. This is particularly important in marine applications, where engines may be started after long idle periods or exposed to varying temperatures. Maintaining oil flow prevents lubrication starvation, which can cause severe engine damage. The LF3349 is designed to balance filtration efficiency with optimal flow characteristics, ensuring that the engine receives clean oil without restriction.

Another important aspect of the Fleetguard LF3349 Marine Oil Filter is its compatibility with multiple Cummins OEM part numbers. This makes it a direct replacement for several original filters used in marine engines, simplifying procurement and inventory management for ship operators, shipyards, and marine service companies. The LF3349 is trusted across the maritime industry for its consistent performance and long service life.

In addition to its mechanical and filtration capabilities, the LF3349 contributes to overall engine efficiency. Clean oil reduces friction, improves thermal stability, and helps maintain fuel efficiency. Over time, this can reduce operating costs and extend the lifespan of the engine. For vessels operating long routes or offshore missions, reliability is not optional — it is essential. The Fleetguard LF3349 Marine Oil Filter provides the level of protection required for continuous marine operation.

Whether used in propulsion engines driving the vessel or auxiliary generator sets powering onboard systems, the LF3349 ensures stable lubrication performance. Its proven track record in commercial marine fleets makes it a preferred choice for operators seeking dependable filtration solutions.

Overall, the Fleetguard LF3349 Marine Oil Filter is a robust, reliable, and efficient solution for marine diesel engines. Its durable construction, advanced filtration media, and compatibility with major Cummins marine platforms make it ideal for heavy-duty maritime applications. For ship operators who demand consistent performance and long-term engine protection, the LF3349 remains one of the most trusted filters in the marine industry.


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