The 9F850-58A050000A0 replace return oil filter element is a direct-fit replacement for the hydraulic return line filter on wheel loaders. This oil filter element sits in the hydraulic oil return line, cleaning the oil before it flows back into the tank. It removes metal wear particles, carbon deposits, and other contamination that would otherwise circulate through the system and accelerate pump, valve, and cylinder wear.
This return oil filter element uses a carbon steel punched support core, fiberglass pleated filter media, and standard filter dimensions matching the original model’s specifications. The combination gives you high dirt‑holding capacity and stable pressure drop – two factors that directly affect how often you change filters and how smoothly the equipment runs.
This is the specification of the standard 9F850-58A050000A0 replace oil filter element. If you need other part number, please contact us.
| Type | Replace Oil Filter Element |
| Part number | 9F850-58A050000A0 |
| End caps | Carbon steel |
| Filter material | Fiberglass |
| Filtration rate | Customized |
| 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.

The replacement hydraulic oil return filter element is suitable for a broad range of return line filtration applications across multiple industries:
Industrial Hydraulic Systems — Machine tools, injection molding machines, presses, plastic processing equipment, and automated production lines requiring reliable return line filtration to maintain ISO cleanliness targets.
Steel and Metallurgy — Hydraulic systems in steel mills, rolling mills, continuous casting lines, and material handling equipment, where the return line filter must withstand high particulate loading and extended shift cycles.
Power Generation — Turbine governor hydraulic systems, steam turbine control valves, boiler feed pump hydraulics, and coal-fired plant auxiliary hydraulic equipment.
Construction and Mining Equipment — Mobile hydraulic systems in excavators, loaders, bulldozers, haul trucks, and mining machinery. The CR222F10R is particularly well-suited for equipment operating in dusty or debris-laden environments.
Agricultural Machinery — Hydraulic systems in tractors, harvesters, and other agricultural equipment where return line filtration protects pumps and valves from wear.
Marine and Offshore — Steering gear hydraulics, winch and crane control systems, stabiliser controls, and deck machinery.
Q: This is a replacement, not an original Foton part. What’s the actual difference?
A: The difference is branding and price. The replacement element is manufactured to the same dimensional specifications, sealing interface, media type , and structural materials as the OEM filter element. The absence of the original logo does not affect fit or filtration performance.
Q: Can this oil filter element be cleaned and reused?
A: No. The fiberglass media is designed for single‑use disposal. Cleaning attempts (backwashing, blowing with compressed air, solvent washing) damage the delicate fiber structure and permanently reduce filtration efficiency. The filter should be replaced when the differential pressure reaches the recommended change‑out value.
Q: What fluid types is this element compatible with?
A: The element is compatible with mineral‑based hydraulic oils and most synthetic hydraulic fluids used in mobile equipment. The NBR sealing material is suitable for mineral oils and common additives. For phosphate esters or water‑glycol fluids, a seal material change is required – specify at order.
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!
