FS1065 Fuel Water Separator
The NAKATU FS1065 is an aftermarket spin-on fuel-water separator, a replacement for the Fleetguard FS1065. It helps separate water from diesel fuel and captures particulate contaminants in compatible filtration systems. Published applications include selected Freightliner M2 106, 108SD, 114SD and MT45 trucks equipped with Cummins engines. Please confirm the installation interface, filter size, and equipment part number before ordering.
Specifications
- Model:
- NAKATU FS1065 Fuel Water Separator
- Product Type:
- Fuel Water Separator Filter
- Replaces:
- Donaldson P551103; Baldwin BF1378-SPS; WIX 33965; MANN WK 9017 X; Luber-Finer LFF1065; Hengst H375WK
- Applicable engine number:
- Freightliner M2 106, M2 112, 108SD, 114SD, MT45, MT55, B2; Cummins ISB 5.9, ISB 6.7, ISC 8.3, ISL9 engines. Verify vehicle year, engine configuration and original part number.
- Key Specifications:
- Thread Size: 1-14 UNS-2B Height: 248.67 mm (9.79 in) Gasket Inside Diameter: 62.54 mm (2.46 in) Largest Outside Diameter: 93.83 mm (3.69 in) Gasket Outside Diameter: 71.98 mm (2.83 in)
- OEM Part Numbers:
- Cummins 4934879, 3959404
Product Overview
The NAKATU FS1065 is an aftermarket spin-on fuel-water separator intended as a replacement for Fleetguard FS1065. It is designed for compatible diesel fuel filtration systems requiring the FS1065 reference specification.
The filter helps separate water from diesel fuel and capture particulate contaminants before they reach sensitive fuel injection components. Removing water and dirt from diesel fuel helps support the proper operation of compatible fuel systems.
Key Features
- Spin-on fuel-water separator configuration
- Helps separate water from diesel fuel
- Captures particulate contaminants in compatible fuel filtration systems
- Fleetguard reference thread size: 1-14 UNS-2B
- Fleetguard reference height: 248.67 mm
- Fleetguard reference largest outside diameter: 93.83 mm
- Fleetguard reference gasket inside diameter: 62.54 mm
- Fleetguard reference gasket outside diameter: 71.98 mm
- Original Fleetguard design includes a standpipe
The original Fleetguard FS1065 uses StrataPore filtration media and has published particle filtration and water separation performance specifications. These specifications apply to the original Fleetguard product only. NAKATU filtration media and performance must be confirmed independently.
Applications
Fleetguard lists FS1065 for selected Freightliner M2 106, M2 112, 108SD, 114SD, MT45, MT55 and B2 vehicles equipped with Cummins diesel engines.
Published engine applications include selected Cummins ISB 5.9, ISB 6.7, ISC 8.3 and ISL9 configurations.
The original Fleetguard catalog also identifies Cummins ISC07 as a reference application.
FS1065 may be suitable for compatible commercial vehicles and industrial diesel fuel systems where the original equipment specifies the FS1065 filter.
Exact compatibility depends on the vehicle model year, engine arrangement, equipment serial number, filter mounting head and original equipment part number.
Why Choose NAKATU?
NAKATU is an independent aftermarket filtration brand and supplier focused on replacement filters for heavy-duty trucks, construction machinery, mining equipment and industrial diesel engines.
Our product range includes fuel-water separators, diesel fuel filters, engine oil filters, air filters and hydraulic filters.
We support international importers, distributors, wholesalers and equipment parts suppliers with product selection, cross-reference assistance, wholesale quotations and bulk purchasing arrangements.
Cooperation options include OEM projects, private-label programs, product customization and customized packaging, subject to confirmed technical specifications and order quantities.
NAKATU aims to support long-term global B2B relationships through practical product guidance, responsive communication and flexible sourcing services.
Quality & Supply Assurance
Product specifications, dimensions and application requirements should be confirmed before order placement.
Sample approval, inspection arrangements, packaging requirements and shipment terms can be discussed according to customer needs.
For bulk orders, customers should verify the mounting thread, gasket dimensions, standpipe design, water separation performance, filtration efficiency and any required drain or sensor connections.
Customers should also confirm the technical requirements of the destination market. Fleetguard recommends FS1067 for European-market applications.
Disclaimer
Fleetguard, Cummins, Freightliner, Donaldson, Baldwin, WIX and other third-party brand names and part numbers are used solely for product identification and compatibility reference.
NAKATU is an independent aftermarket filtration brand and is not affiliated with, authorized by, sponsored by or endorsed by these manufacturers.
Original Fleetguard performance specifications do not establish equivalent NAKATU performance.
Always verify the original part number, equipment configuration, filter dimensions and technical requirements before ordering.
