The 6659858A replace oil filter element is a high-quality replacement element designed for return line hydraulic filtration systems. This element is engineered to remove solid particles, metal wear debris, and contaminants from hydraulic fluids as they return to the reservoir, ensuring optimal system performance and extended equipment life.
Replace oil filter 6659858A features high-quality cellulose media with a nominal filtration rating and Viton seals for enhanced chemical resistance and high-temperature performance. The outside-in flow direction ensures efficient contaminant capture while maintaining low pressure drop.
This is the specification of the standard 6659858A replace oil filter element. If you need other part number, please contact us.
| Type | Replace Oil Filter Element |
| Part number | 6659858A |
| End caps | Nylon |
| Filter material | Fiberglass |
| Filtration rate | 1~50μm |
| Flow direction | Outside to Inside |
| Origin | Henan, China |
| Package | Neutral carton package |
Huahang Filter is a professional filtration manufacturer with over a decade of experience in designing and producing high-quality replacement filter cartridges. Since our founding in 2009, we have focused on delivering filtration solutions that balance performance, durability, and cost-effectiveness.
Precision Engineering for Guaranteed Compatibility: We meticulously replicate all critical dimensions, sealing profiles, and performance characteristics to ensure a perfect, leak-free installation in your filter housing, guaranteeing optimal system integrity from first use.
Rigorous Quality Assurance & Process Control: Our vertically integrated manufacturing and strict quality management systems ensure each filter offers verified particle capture efficiency, high dirt-holding capacity, and structural durability to withstand system pressure cycles and surges.
Advanced Filtration Media Technology: We utilize high-quality depth media (fiberglass, cellulose, or synthetic) engineered to provide consistent filtration performance, meeting the specific cleanliness requirements of your hydraulic system.
Global Supply Chain and Technical Expertise: With extensive experience serving international markets, we combine scalable production with deep application knowledge, ensuring reliable product availability and tailored support for your specific operating environment.
Value-Driven Solution Provider: As a focused manufacturer, we deliver OEM-level performance and protection at a competitive cost, offering excellent lifecycle value and supporting cost-effective, proactive maintenance strategies.
Q1: What is the flow direction through this filter?
A: The flow direction is outside-in. Hydraulic fluid enters from the outside of the element and passes through the cellulose media to the inner core, capturing contaminants on the outer layers.
Q2: What fluids is this element compatible with?
A: This element is compatible with HH, HL, HM, and HV hydraulic fluids, as well as lubricating oils and water-glycol emulsions.
Q3: Can this filter element be cleaned and reused?
A: Cellulose filter elements are typically designed as disposable and should not be cleaned or reused. Cleaning can damage the delicate fiber structure and destroy filtration efficiency.
Q4: How do I know when to replace this filter element?
A: Replace when the differential pressure indicator signals, when pressure drop reaches the manufacturer’s recommended maximum, or during scheduled maintenance intervals (typically every 2000-4000 operating hours).
At Huahang Filter, we offer robust customization services to meet your specific filtration requirements.
Custom Filtration Ratings: Available from 1μm to 25μm to match your exact particle removal requirements.
Custom Seal Materials: NBR, Viton, EPDM, or PTFE-encapsulated options available.
Custom End Caps: Alternative materials or configurations to fit unique housings.
Special Media Options: Wire mesh for cleanable applications or enhanced cellulose blends.
Custom Packaging: Bulk packaging or individual boxes with branding and instructions.
Contact Huahang Filter today to discuss your MOOG B645662V replacement filter element requirements and request a quote!
