HiFi Filter SN 21586, direct aftermarket replacement. This aftermarket hydraulic filter is a direct replacement for popular brands including Airman, Fai Filtri, Fleetguard, HiFi Filter, Kubota, and Oxfil. With a total height of 70 mm, largest inner diameter of 11 mm, and largest outer diameter of 35 mm, it is built to the original dimensions and ratings. Ideal for Kubota equipment, this filter ensures reliable performance in hydraulic systems, offering a cost-effective alternative without compromising quality.
Technical properties & cross references
Specifications
| Total Height |
70 mm (2 3/4") |
| Largest Inner Diameter |
11 mm (7/16") |
| Largest Outer Diameter |
35 mm (1 3/8") |
| 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 |
| G&T Engine Parts |
USD 51.90 |
11 Oct 2026 |
| Spare Part Mart |
USD 9.65 |
Today |
Our price of USD 9.65 is approximately 81% less than this seller.
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
Dusty Construction Sites
In harsh, dusty environments, this hydraulic filter prevents contaminants from entering the system, extending component life and reducing downtime for maintenance.
Continuous-Duty Agricultural Operations
For tractors and harvesters running long hours, this filter maintains oil cleanliness, ensuring consistent hydraulic power and preventing premature wear.
Fleet Maintenance Consolidation
Standardising on this filter across multiple Kubota machines simplifies inventory management, reducing stock-keeping units and streamlining replacement schedules.
Cold-Weather Startups
Designed to handle cold oil viscosity, this filter allows efficient flow during startup, protecting pumps and valves from cavitation in low temperatures.
Frequently asked questions
How do I confirm this filter fits my machine?
Check your existing filter's dimensions: total height 70 mm, largest inner diameter 11 mm, and largest outer diameter 35 mm. Also verify the thread size and seal type. This filter is a direct replacement for Kubota equipment and cross-references Airman, Fai Filtri, Fleetguard, HiFi Filter, and Oxfil part numbers.
What is the filtration rating and media type?
The specific micron rating and media type are not provided in the verified specifications. For filtration performance details, consult your equipment manual or contact our support team.
What are the thread and seal dimensions?
The verified dimensions are total height 70 mm, largest inner diameter 11 mm, and largest outer diameter 35 mm. Thread size and seal type are not specified; measure your existing filter's thread and seal to ensure compatibility.
Is this filter genuine OEM or aftermarket?
This is an aftermarket filter, not genuine OEM. It is built to the original dimensions and ratings and serves as a direct replacement for brands like Kubota, Airman, and Fleetguard.
How do I install this filter?
Installation is straightforward: remove the old filter, clean the mounting surface, lubricate the new seal with clean oil, hand-tighten until the seal contacts the base, then tighten an additional 3/4 turn. Do not overtighten.