
FF5971NN Fuel Filter NAKATU
The NAKATU FF5971NN is an aftermarket spin-on diesel fuel filter designed for compatible Cummins X15 engine fuel systems. Its filtration structure helps capture fine particulate contaminants from diesel fuel, supporting cleaner fuel delivery and protection of sensitive fuel injection components in heavy-duty engines.
Specifications
- Model:
- FF5971NN Fuel Filter NAKATU
- Product Type:
- fuel filter
- Replaces:
- Fleetguard FF5971NN; Baldwin BF46248; Donaldson DBF5811; WIX WF10891; Luber-Finer LFF5686
- Applicable engine number:
- Cummins X15; Freightliner Cascadia / Coronado / 122SD; International LT / HX520 / HX620; Kenworth T680 / T800 / T880; Peterbilt 567 / 579 / 389.
- Key Specifications:
- Height: 292.10 mm Largest Outside Diameter: 120.30 mm Gasket Inside Diameter: 101.60 mm Gasket Outside Diameter: 120.30 mm Thread Size: M90 × 2-7H Filter Type: Spin-On
- OEM Part Numbers:
- Cummins 5575143 / 557 5143
- Designed for heavy-duty diesel fuel filtration.
- Fine-particle filtration structure.
- Helps capture abrasive contaminants in diesel fuel.
- Supports protection of fuel injection components.
- Spin-on construction for convenient replacement.



