
FS19591 Fuel Water Separator NAKATU
The NAKATU FS19591 is an aftermarket spin-on fuel/water separator designed for compatible heavy-duty diesel engines. Its filtration structure helps separate water and capture particulate contaminants from diesel fuel, supporting cleaner fuel delivery and protection of engine fuel systems.
Specifications
- Model:
- FS19591 Fuel Water Separator NAKATU
- Product Type:
- Fuel water separator
- Replaces:
- Fleetguard FS19591; Baldwin BF1395-SP / BF1265 / BF1395-O; Donaldson P550748 / P551076 / P551858; WIX WF10006; FRAM PS9263; MANN WK1175X
- Applicable engine number:
- International HX520 / HX620 / 9400i; Cummins X15 / C12 / C13; Caterpillar 773E / 775D; selected Atlas Copco and New Holland equipment.
- Key Specifications:
- Height: 215.90 mm Largest Outside Diameter: 107.95 mm Gasket Inside Diameter: 80.00 mm Gasket Outside Diameter: 91.00 mm Thread Size: 1-14 UNF-2B Filter Type: Spin-On
- OEM Part Numbers:
- Caterpillar 1335673 / 1700061 / 5134490; Atlas Copco 2914823600 / 3222308994 / 3222309422; New Holland 87336446; Isuzu 898021936
- Designed for diesel fuel filtration and water separation.
- Helps separate emulsified and free water from diesel fuel.
- Helps capture particulate contaminants.
- Spin-on construction for convenient replacement.
- Supports water-in-fuel sensor and collection bowl configurations.



