Description
The Fleetguard FS20121 is a spin-on fuel/water separator built by Cummins Filtration for current Cummins B6.7 and L9 on-highway engines (2020+) and QSB6.7 / QSL9 Stage V industrial and off-highway engines. It uses Fleetguard’s StrataPore coalescing media to deliver 10-micron particulate filtration and high-efficiency water separation, protecting high-pressure common-rail injectors with service intervals up to 1,000 hours. Replaces Cummins 5444245, 5528103, and 5521648.
Specifications
| Manufacturer | Fleetguard (Cummins Filtration) |
|---|---|
| Part Number | FS20121 |
| Part Type | Spin-On Fuel/Water Separator |
| Engine Compatibility | Cummins B6.7, L9, QSB6.7, QSL9 (Stage V) |
| Filtration Media | StrataPore (coalescing) |
| Micron Rating | 10 micron |
| Height | 7.089 in (180 mm) |
| Outside Diameter | 3.819 in (97 mm) |
| Service Interval | Up to 1,000 hours |
| Fuel Compatibility | ULSD and biodiesel |
Cross References
This filter replaces or is equivalent to the following part numbers:
- Cummins: 5444245, 5528103, 5521648
- Terberg: T13017490
- HiFi-Filter: SN40847
- Sakura: SK48810
Applications
This spin-on fuel/water separator fits the following engines:
- Cummins B6.7 on-highway (2020+, EPA Stage V emissions)
- Cummins L9 on-highway (2020+, EPA Stage V emissions)
- Cummins QSB6.7 Stage V industrial / off-highway
- Cummins QSL9 Stage V industrial / off-highway
Representative platforms using these engines:
- Blue Bird Vision Bus (Cummins B6.7, 2020+)
- Freightliner S2C Bus Chassis (Cummins B6.7, 2020+)
- Autocar XSPOTTER (Cummins B6.7, 2020+)
- Medium-duty trucks and buses with Cummins B6.7 / L9 power
- Construction and material-handling equipment with Cummins QSB6.7 / QSL9 Stage V engines
Verify your engine serial number and fuel housing configuration before ordering to confirm fitment.
