OEM & Private Label
326-1644 Fuel Water Separator
The NAKATU 326-1644 is an aftermarket spin-on fuel water separator designed as a replacement for Caterpillar CAT 326-1644. It helps separate water and capture particulate contaminants from diesel fuel in compatible filtration systems. Published applications include selected CAT 320D, 323D, 325D and 330D excavators, D6T and D8T dozers, and 950H and 966H wheel loaders. Confirm the mounting interface, filter dimensions and equipment part number before ordering.
Specifications
- Model:
- NAKATU 326-1644 Fuel Water Separator
- Product Type:
- Fuel Water Separator Filter
- Replaces:
- Fleetguard FS20007; Donaldson P550900; Baldwin BF1399-SP; WIX 33606; HIFI-FILTER SN55437; Sakura SFC55170; FRAM PS10264; Hengst H523WKD539; Luber-Finer LFF6771SC
- Applicable engine number:
- CAT 320C, 320D, 323D, 325D, 329D, 330D excavators; D6R, D6T, D7R, D8T dozers; 950H, 966H, 972H, 980H loaders; 140M, 160M graders; C7, C9, C13 engines. Verify serial number.
- Key Specifications:
- Height: 186.0 mm Largest Outside Diameter: 108.3 mm
- OEM Part Numbers:
- Caterpillar 326-1644, 3261644
Product Overview
The NAKATU 326-1644 is an aftermarket spin-on fuel water separator designed as a replacement for Caterpillar CAT 326-1644. It helps separate water and capture particulate contaminants from diesel fuel in compatible filtration systems. The reference product is a CAT Advanced Efficiency fuel water separator used in selected construction machinery and diesel engines.
Key Features
- Spin-on fuel water separator design
- Helps separate water from diesel fuel
- Helps capture dirt and particulate contaminants
- Reference height: 186.0 mm
- Reference largest outside diameter: 108.3 mm
- Designed for compatible CAT diesel fuel filtration systems
- Confirm mounting interface, seals and water collection configuration before installation
- CAT reference performance claims do not establish equivalent NAKATU filtration efficiency
Applications
The CAT 326-1644 reference is listed for selected Caterpillar 320C, 320D, 323D, 325D, 329D and 330D excavators; D6R, D6T, D7R and D8T track-type tractors; 950H, 966H, 972H and 980H wheel loaders; and selected 140M and 160M motor graders.
CAT also lists applications involving C7, C9, C11, C13 and other diesel engine families. Exact compatibility depends on the machine serial number, engine arrangement and installed fuel filtration system.
Why Choose NAKATU?
NAKATU is an independent aftermarket filtration brand and supplier focused on replacement filters for heavy-duty trucks, construction machinery, agricultural 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 global 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, customized packaging and export-oriented procurement services, subject to confirmed technical specifications and order quantities.
NAKATU aims to support long-term international B2B cooperation through practical application guidance, flexible sourcing and responsive communication.
Quality & Supply Assurance
NAKATU supports product specification confirmation, dimensional verification and application matching before order placement.
Sample approval, inspection requirements, labeling, packaging specifications and shipment arrangements can be discussed according to customer needs.
For wholesale and long-term supply programs, customers should confirm approved samples, filtration requirements, mounting dimensions, sealing configuration and delivery terms before production or shipment.
Disclaimer
Caterpillar, CAT, Fleetguard, Donaldson, Baldwin, WIX and other third-party brand names and part numbers are used solely for compatibility identification.
NAKATU is an independent aftermarket filtration brand and supplier and is not affiliated with, authorized by, sponsored by or endorsed by these manufacturers.
Verify equipment serial numbers, original part numbers, filter mounting specifications and product dimensions before ordering.
