326-1643 FILTER ASS'Y is a Caterpillar fuel water separator designed to help remove water and contaminants from fuel before they reach secondary filters and precision fuel-system components. It is applicable to CAT 928H, 972K, and 928HZ wheel loaders as well as numerous other Caterpillar machines. Its filtration and water-separation function supports cleaner fuel, reliable engine operation, and longer service life of downstream fuel-system components.
| Parameter | Description |
| Part Number | 326-1643 |
| Product Name | Filter Assembly |
| Brand | Caterpillar |
| Product Type | Hydraulic Filter Assembly |
| Material | Metal housing with replaceable filter element |
| Strength & Performance | Provides stable hydraulic oil filtration |
| Surface Treatment / Protection | Anti-corrosion protective coating |
| Dimensions & Structure | OEM standard configuration |
| Function / Installation Position | Hydraulic system filtration unit |
| Operating Conditions | Wheel loader heavy-duty operation |
| Compatible Models | 928H, 972K, 928HZ |
| System | Hydraulic system |
| Weight | 1 kg |
| Packaging | Industrial carton packaging |
| Lead Time | 30–90 days |
| Shipping Method | Sea / Air / Land |
| Payment Method | USD / RMB / RUB |
| Warranty | 6 months |
The 326-1643 FILTER ASS’Y is listed for Caterpillar equipment including:
Caterpillar’s official parts listing also shows this filter assembly across a broad range of other CAT equipment, including wheel loaders, off-highway trucks, motor graders, excavators, dozers, and industrial engines. Always verify the machine serial number and equipment configuration before ordering.
The 326-1643 fuel water separator is suitable for demanding equipment applications such as:
It is particularly important for machinery working in dusty, humid, muddy, or high-load environments where fuel contamination can affect engine and fuel-system performance.
YLCM PARTS supplies construction and mining machinery components for customers worldwide, supporting equipment maintenance, repair, and fleet operations.
Our product range covers fuel filters, oil filters, hydraulic filters, air filters, water separators, engine components, hydraulic parts, transmission parts, and other construction machinery spare parts.
For CAT filter requirements, YLCM can also help identify the correct replacement according to the original part number, machine model, or serial number.
The 326-1643 FILTER ASS’Y is packed according to international export requirements to protect the filter and sealing components during transportation.
Available packaging solutions include:
YLCM provides flexible logistics solutions for international machinery parts orders:
Shipping arrangements can be selected according to destination, order quantity, delivery requirements, and cargo characteristics.
Looking for 326-1643 FILTER ASS’Y for CAT 928H, 972K or 928HZ?
Contact YLCM PARTS for the latest quotation, stock availability, lead time, packaging details, and shipping options. Send us your part number, machine model, serial number, and required quantity for professional compatibility verification and quotation support.
Q1: What is 326-1643 used for?
326-1643 is a Cat fuel water separator designed to remove water and contaminants from fuel and help protect downstream fuel system components.
Q2: Which CAT machines use 326-1643?
The part is listed for CAT 928H, 928HZ, and 972K, along with many other Caterpillar equipment models.
Q3: Why is a fuel water separator important?
Water and contaminants in fuel can negatively affect fuel-system components. A fuel water separator helps remove these contaminants before they reach sensitive components.
Q4: Is 326-1643 the same as a standard fuel filter?
326-1643 is specifically identified by Caterpillar as a Fuel Water Separator, with a primary focus on separating water and protecting the fuel system.
Q5: When should the 326-1643 filter assembly be replaced?
Replacement should follow the machine’s maintenance schedule and operating conditions. Earlier replacement may be required when contamination, water accumulation, or reduced fuel-system performance is observed.
Q6: Can YLCM supply other CAT filters?
Yes. YLCM supplies fuel filters, water separators, engine oil filters, hydraulic filters, air filters, and other Caterpillar replacement parts.
Q7: How can I confirm compatibility?
Provide the original part number together with the machine model and serial number. YLCM’s technical team can help verify the correct application before ordering.
