The HCG300FKN4Z Replace Pal Oil Filter Element is a direct, high-performance alternative for Pal hydraulic filter systems. This replacement filter element is designed to provide consistent, high-efficiency particulate removal in lube and hydraulic circuits ranging from industrial manufacturing to power generation. As part of the HCG300 Series and Versalon™ family, it combines robust construction with advanced filtration media to deliver reliable service in demanding applications.
The filters of HCG300 series are recognized for their robust construction and performance. This series typically shares common outer and inner diameters, so that an HCG300 filter will physically fit any housing designed for the HCG300 platform. Precision-engineered to match every critical dimension of the OEM original—outer diameter, length, seal configuration, and flow direction.
Below is the standard specification of the replace Pal oil filter element HCG300FKN4Z. Feel free to contact us for a quote.
| Type | Replace Pal Oil Filter Element |
| Part number | HCG300FKN4Z |
| Filter layer | Fiberglass |
| End caps | Nylon |
| Filtration rate | 1~50μm |
| Working temperature | -20~+110℃ |
| Sealing material | NBR |
| Package | Neutral carton package |
There are part of the models related to the replace Pal oil filter HC9600FKT4H. If you don’t find the models you need, please don’t hesitate to consult us for a quote.
| HC9600FCS13H | HC9600FKT4H | HC8300FRN26Z | HC8400FKP8H |
| HC9800FKT8H | HC9100FKN13H | HC8904FKT26H | HC8400FKP16H |
| HC9600FKZ8H | HC9100FKS13H | HC8900FKP8H | HC8400FKN8H |
| HC9600FKZ13H | HC9100FKS4H | HC8900FKP13H | HC8400FKN16H |
| HC9600FKZ16H | HC9100FKT8H | HC8900FKP16H | HC8400FKN26H |
| HC9600FKP4H | HC9100FKT13H | HC8900FKP26H | HC8400FKN39H |
| HC9600FKP13H | HC9021FDP4H | HC8900FKN8H | HC8400FKS16H |
| HC9600FKP16H | HC9021FDP8H | HC8900FKN13H | HC8400FKS26H |
| HC9600FKN4H | HC9021FDT4H | HC8900FKN16H | HC8400FKS39H |
| HC9600FKN8H | HC9021FDT8H | HC8900FKN26H | HC8400FKT8H |
| HC9600FKN16H | HC9020FKP4H | HC8900FKS8H | HC8400FKT26H |
| HC9600FKS13H | HC9020FKN8H | HC8900FKS26H | HC8314FKP16H |

Huahang Filter is not a trading company, but a true manufacturing enterprise rooted in production. From raw material warehousing to finished product delivery, every filter element is completed in our own workshop. We have served numerous industrial enterprises and encountered a variety of hydraulic filtration challenges. This experience has given us a deeper understanding of how to select the right products for our users.
Our workshop is equipped with automated folding machines, end cap forming machines, and precision testing equipment to ensure that every filter element has uniform folding, strong bonding, and accurate dimensions. We use high-quality imported glass fiber filter media to ensure stable filtration accuracy, high dirt-holding capacity, and long service life. Each filter element undergoes rigorous testing, and its quality meets or exceeds OEM standards without affecting normal use.

Q: What is the difference between the HCG300FKN4Z and other HCG300 filters like HCG300FKS4Z or HCG300FKT4Z?
A: The difference lies in the filtration rating and media configuration:
FKN code indicates 6-micron precision (β≥200) with both inner and outer metal protective mesh and an inner non-metallic protective layer—suitable for high-duty applications requiring fine, reliable filtration.
FKS code typically indicates a 12-micron rating; “S” represents 12μm.
FKT code typically indicates a 25-micron rating; “T” represents 25μm.
Thus, the FKN4Z is the finest of the three common HCG300 return-line elements and is preferred in systems with servo valves or when fluid must meet very high cleanliness targets (such as ISO 4406 standards below 16/13/10).
Q: What type of fluid can I use with this filter element?
A: The HC9800FCS4H is compatible with a wide range of industrial fluids. This includes petroleum-based hydraulic oils, water glycols, water-oil emulsions, phosphate ester fluids, and most synthetic lubricants . Always verify seal material compatibility with your specific fluid, especially with exotic synthetics.
Q: How often should I replace this hydraulic filter element?
A: Replacement intervals depend on your system’s operating conditions and the level of contamination in the environment. A good rule of thumb is to replace the element during scheduled maintenance or when a differential pressure indicator signals that the element is becoming clogged . Regular replacement ensures that your system maintains target cleanliness levels and protects sensitive components like servo valves and pumps.
Q: What fluids are compatible with this element?
A: The HCG300FKN4Z is compatible with petroleum-based hydraulic oils, water glycols, water-oil emulsions, synthetic hydraulic fluids, phosphate esters, and most lubricating oils. For extreme fluids or operating conditions, confirm seal compatibility before ordering.