Description
Fleetguard FS43257 fuel/water separator filter-and-shell assembly for 2007.5–2009 Dodge Ram 2500, 3500, 4500, and 5500 trucks equipped with the 6.7L Cummins ISB diesel. The complete assembly replaces Fleetguard FS43252 and crosses to Cummins 5257769, Chrysler 68061633AA / 5183410AA, Donaldson P550907, Baldwin BF1392, and Wix 24723. The reusable canister shell stays in service; for routine element-only service, see the FS43258 cartridge kit.
Specifications
| Manufacturer | Fleetguard |
|---|---|
| Part Number | FS43257 |
| Part Type | Fuel/Water Separator (Filter-in-Shell Assembly) |
| Filter Media | StrataPore |
| Engine Compatibility | Cummins 6.7L ISB (2007.5–2009 Dodge Ram) |
| Replaces (Fleetguard) | FS43252 |
| Routine Service Element | FS43258 (cartridge-only) |
Cross References
This assembly replaces or is equivalent to the following part numbers:
- Cummins: 5257769
- Chrysler / Mopar: 68061633AA, 5183410AA
- Donaldson: P550907
- Baldwin: BF1392
- Wix: 24723
Applications
This fuel/water separator fits the following engines:
- Cummins 6.7L ISB I6 turbo-diesel (2007.5–2009)
Representative vehicles using this engine:
- Dodge Ram 2500 / 3500 (2007.5–2009)
- Dodge Ram 4500 / 5500 chassis-cab (2008–2009)
Verify your truck’s model year and Cummins engine serial number before ordering to confirm fitment.









