Description
Fleetguard LF14009NN spin-on lube filter for Cummins ISL9 / L9 and other Cummins applications spec’d for premium-efficiency oil filtration. Combines 2-in-1 NanoNet® and StrataPore® media to deliver substantially higher particle-removal efficiency and contaminant-holding capacity than the LF9009 it supersedes — meaningful protection under cold-start and high-soot duty cycles. Replaces Cummins 5444774.
Specifications
| Manufacturer | Fleetguard (Cummins Filtration) |
|---|---|
| Part Number | LF14009NN |
| Part Type | Lube Filter (Spin-On, Combo) |
| Engine Compatibility | Cummins ISL9, L9 (also ISL, ISC, N14, QSL applications spec’d to LF9009/LF14009NN) |
| Filter Media | NanoNet + StrataPore |
| Filtration Rating | 30 micron, 98.7% efficiency |
| Thread Size | 2 1/4-12 UN |
| Overall Height | 11.81 in (300 mm) |
| Outer Diameter | 4.66 in (118.3 mm) |
| Gasket OD | 4.68 in (118.9 mm) |
| Weight | 3.3 lb (1.5 kg) |
| Supersedes | LF9009 |
Cross References
This part replaces or is equivalent to the following part numbers:
- Cummins: 5444774
- Fleetguard: LF9009 (superseded)
- Baldwin: B40142
- WIX: 51748XD
- Donaldson: DBL7300
Applications
This lube filter fits the following engines:
- Cummins ISL9 (2010-2016)
- Cummins L9 (2017-present)
- Other Cummins applications (ISL, ISC, N14, QSL) spec’d to the LF9009 / LF14009NN service callout
Representative vehicles using these engines:
- Freightliner M2 106, M2 112, Business Class with ISL9 / L9
- Kenworth T370, T440, T470, T880 with ISL9 / L9
- Peterbilt 337, 348, 365, 367 with ISL9 / L9
- Thomas Built, Blue Bird, IC school buses with ISL9 / L9
Verify your engine model and Fleetguard service-filter callout before ordering — LF9009 was superseded by LF14009NN.









