Oxfil OF.8355, direct aftermarket replacement. This filter is an aftermarket oil filter designed as a direct replacement for filters used in equipment from Argo, Effer, Fai Filtri, Ferrari Gianni, and Oxfil. It features impregnated paper media with a 25 µm filtration rating, effectively capturing contaminants to protect engine components. With a total height of 304 mm, an outer diameter of 62.5 mm, and a smallest inner diameter of 28.6 mm, this filter includes a bypass valve that opens at 1.75 bar to ensure oil flow during cold starts or clogged conditions. Built to the original dimensions and ratings, it offers a reliable and cost-effective alternative for maintaining hydraulic and lubrication systems.
Technical properties & cross references
Specifications
| Filtration Media |
Impregnated Paper 25 µm |
| Media type |
Impregnated Paper |
| Filtration Rating |
25 µm |
| Total Height |
304 mm (11 31/32") |
| Bypass Valve Opening Pressure |
1.75 bar (25 PSI) |
| Smallest Inner Diameter |
28.6 mm (1 1/8") |
| Outer Diameter |
62.5 mm (2 15/32") |
| Stat. HS-Code |
84149000 |
| Country of Manufacture |
China |
Price beat guarantee
We check what other aftermarket sellers charge for this same part. Their prices on the date we checked:
| Seller |
Price |
Checked |
| Oxfil |
USD 21.30 |
16 Oct 2026 |
| FilterFinder Online |
USD 67.00 |
14 Oct 2026 |
| Hydrafil |
USD 100.95 |
14 Oct 2026 |
| Spare Part Mart |
USD 17.04 |
Today |
Our price of USD 17.04 is 20% to 83% less than these sellers.
Found this part cheaper somewhere else? Send us the listing and we will beat it by 5% under our Price Beat Guarantee. Every order is also covered by our 30 day money back guarantee.
Use cases & applications
High-Contaminant Environments
In dusty or debris-heavy job sites, the 25 µm impregnated paper media traps fine particles that can cause premature wear. This filter helps extend equipment life by maintaining clean oil circulation under harsh conditions.
Continuous-Duty Operations
For machinery running extended shifts, the 1.75 bar bypass valve ensures oil flow even if the filter loads up, preventing starvation. This reduces downtime for filter changes during critical work periods.
Cold-Start Protection
When starting equipment in cold weather, thick oil can restrict flow. The bypass valve opens to allow immediate lubrication, protecting engine bearings and reducing start-up wear.
Inventory Consolidation
Cross-referencing multiple brands like Argo and Effer, this single filter simplifies stock management. Operators servicing mixed fleets can reduce inventory complexity while ensuring proper fit.
Frequently asked questions
How do I confirm this filter fits my equipment?
Check your original filter's part number against the cross-reference brands: Argo, Effer, Fai Filtri, Ferrari Gianni, or Oxfil. If your filter matches one of these, this filter is a direct replacement.
What is the filtration rating and media type?
The filter uses impregnated paper media with a 25 µm filtration rating. This captures fine particulates while allowing adequate oil flow for most hydraulic and lubrication systems.
What are the key dimensions and thread details?
Total height is 304 mm, outer diameter is 62.5 mm, and smallest inner diameter is 28.6 mm. The thread specification is not provided, so measure your mounting thread or consult the original filter.
Is this filter a genuine OEM part?
No, it is an aftermarket replacement built to the original dimensions and ratings. It is not branded as genuine but offers equivalent performance at a lower cost.
How do I install this filter correctly?
Installation is similar to other spin-on filters: lubricate the gasket, tighten by hand until contact, then an additional 3/4 turn. Do not overtighten. Always follow your equipment manual.