Description
Premium aftermarket replacement fuel water separator from Fleetguard. The FS19591 is a spin-on element rated 98% efficient at 20 micron to SAE J1985, separating 96% of emulsified water and 100% of free water. It has a 1-14 UNF-2B thread and a drain provision at the base of the shell that accepts an OEM drain valve, water-in-fuel sensor or collection bowl.
Specifications
| Manufacturer | Fleetguard |
|---|---|
| Part Number | FS19591 |
| Part Type | Fuel Water Separator, Spin-On |
| Micron Rating | 20 micron |
| Efficiency | 98% total, SAE J1985 |
| Water Separation | 96% emulsified, 100% free water |
| Thread | 1-14 UNF-2B |
| Height | 8.50 in (215.9 mm) |
| Outside Diameter | 4.37 in (111 mm) |
| Drain | Yes — internally threaded base accepts drain valve, WIF sensor or bowl |
Cross References
This part replaces or is equivalent to the following part numbers:
- Donaldson: P551858
- Baldwin: BF1395-O
- Mann: WK1175X
- Caterpillar: 1335673
Applications
This fuel water separator fits diesel engines found in:
- Navistar and Isuzu commercial chassis
- New Holland, Massey Ferguson and Claas agricultural equipment
- Atlas Copco, Sennebogen and Wirtgen industrial equipment
Verify thread size and the drain configuration against the filter you are replacing before ordering. This element has the sensor port at the base — Fleetguard FS19934 is the drain-only variant without the sensor port and is a different part. Drain water from the separator at every service interval, and check the water-in-fuel sensor operation when the element is changed.
