Description
The Fleetguard FF5488 is a spin-on fuel filter for Cummins ISC, QSC, ISL, and QSL series engines, replacing Cummins 3959612 and 5402706. 5-micron cellulose media, 98.7% TWA efficiency per SAE J1985, 7/8-14 UNF thread on a 2.83″ gasket. Common service filter on mid-bore Cummins industrial, marine, and on-highway applications.
Specifications
| Manufacturer | Fleetguard (Cummins Filtration) |
|---|---|
| Part Number | FF5488 |
| Part Type | Spin-On Fuel Filter |
| Length | 6.92″ |
| Largest OD | 3.68″ |
| Seam OD | 3.67″ |
| Thread Size | 7/8″-14 UNF-2B |
| Gasket OD | 2.83″ |
| Gasket ID | 2.46″ |
| Media | Cellulose |
| Micron Rating (SAE J1985) | 5 µm |
| Efficiency (TWA, SAE J1985) | 98.7% |
| Standpipe | None |
Cross References
This filter replaces or is equivalent to the following part numbers:
- Cummins: 3959612, 5402706
- Baldwin: BF7815
- Wix: 33697
- Donaldson: P550774
- Komatsu: 600-319-3750 (6003193750)
- Atlas Copco: 1094217800
- Hyster: 1644048
- Ford: BG6X-9155-AA
- Volkswagen: 2T2-127-177-B
- BMC Trucks: 9P920425
- Tata: 286307999901
- Tec-Fil: PSC76
Applications
This filter fits the following engines:
- Cummins ISC / QSC8.3 (8.3L mid-bore on-highway, industrial, marine)
- Cummins ISL / QSL9 (8.9L on-highway, industrial, marine)
- Cummins ISC and QSC8.3-powered industrial / construction packages
Representative vehicles using these engines:
- Freightliner M2 / Business Class trucks with ISC / ISL
- International / IC Bus chassis with ISC and ISL
- Kenworth and Peterbilt vocational chassis with ISC / ISL
- Cummins Onan and industrial generator packages with QSC / QSL
- Komatsu, Hyster, and Atlas Copco equipment running Cummins QSC / QSL
- Cummins-powered marine pleasure and commercial craft (QSC, QSL)
Verify thread spec, gasket diameters, and engine serial number before ordering. The FF5488 is a non-standpipe spin-on; do not substitute for the secondary filter on dual-stage systems that require a standpipe-style cartridge.









