Voith 4451841124, direct aftermarket replacement. This filter is an aftermarket oil filter designed as a direct replacement for filters from Airfil, Argo, Fai Filtri, Hydac, Krauss Maffei, Oxfil, and Voith. It utilises inorganic microfibre media with a 12 µm filtration rating, effectively capturing fine contaminants to protect hydraulic and lubrication systems. With a total height of 170 mm, an outer diameter of 78 mm, and a smallest inner diameter of 40.5 mm, this filter is built to the original dimensions and ratings for reliable performance. Ideal for use in equipment from Hydac and other compatible systems, it offers a cost-effective alternative without compromising on quality.
Technical properties & cross references
Specifications
| Filtration Media |
Inorganic Microfibers 12 µm |
| Media type |
Inorganic Microfibers |
| Filtration Rating |
12 µm |
| Total Height |
170 mm (6 11/16") |
| Smallest Inner Diameter |
40.5 mm (1 19/32") |
| Outer Diameter |
78 mm (3 1/16") |
| 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 |
| Cardinal Filters |
USD 47.23 |
14 Oct 2026 |
| Oxfil |
USD 52.68 |
16 Oct 2026 |
| FilterFinder Online |
USD 67.00 |
14 Oct 2026 |
| Hydrafil |
USD 119.95 |
14 Oct 2026 |
| Spare Part Mart |
USD 37.79 |
Today |
Our price of USD 37.79 is 20% to 68% 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
Continuous Hydraulic System Operation
In hydraulic systems running 24/7, the 12 µm inorganic microfibre media ensures consistent removal of wear particles, reducing unplanned downtime and extending component life.
High-Contaminant Environments
For mobile or industrial equipment exposed to dust and debris, this filter's robust construction and fine filtration rating help maintain oil cleanliness even under heavy load.
Fleet Maintenance Consolidation
With cross-references to multiple brands, this single filter simplifies inventory management for workshops servicing diverse machinery, reducing stock complexity and costs.
Aftermarket Upgrade from Standard Filters
Operators using lower-grade filters can switch to this 12 µm option for improved filtration efficiency, benefiting systems that require tighter contamination control.
Frequently asked questions
How do I confirm this filter fits my specific machine?
Check your current filter's part number against the cross-referenced brands: Airfil, Argo, Fai Filtri, Hydac, Krauss Maffei, Oxfil, and Voith. If your filter matches one of these, this filter is a direct replacement. For Hydac equipment, the filter is compatible, but no specific models are listed.
What is the filtration rating and media type?
The filter uses inorganic microfibre media with a 12 µm filtration rating. This media is designed to capture fine particles while maintaining low flow resistance.
What are the exact dimensions and thread?
Total height is 170 mm, outer diameter is 78 mm, and smallest inner diameter is 40.5 mm. Thread details are not specified; use the cross-reference list to confirm compatibility.
Is this an OEM or genuine filter?
No, this is an aftermarket replacement built to the original dimensions and ratings. It is not branded as genuine or OEM but is a direct substitute for the listed brands.
How often should I replace this filter?
Replacement intervals depend on operating conditions and manufacturer recommendations. Monitor system pressure and oil condition; typically, change during scheduled maintenance or when the filter becomes clogged.