Atlas Copco 2901164300, direct aftermarket replacement. This separator is a high-quality aftermarket separator designed for use in compressed air systems. It features a collapse pressure of 5 bar and a flow direction of Out-In, ensuring efficient separation of oil and water from compressed air. The separator uses a gasket-type filtration media (GASK) and has dimensions of 220 mm total height, 168 mm outer diameter, and 108 mm smallest inner diameter, with a largest outer diameter of 300 mm. It is a direct replacement for separators from Atlas Copco, Fai Filtri, HiFi Filter, Mann-Filter, Noitech, Oxfil, Sotras, Sotras, and T.G. Filter (part 3170220). Built to the original dimensions and ratings, this aftermarket component offers reliable performance at a competitive price.
Technical properties & cross references
Specifications
| Collapse pressure |
5 bar (73 PSI) |
| Flow direction |
Out-In |
| Filtration Media |
Gasket (GASK) |
| Total Height |
220 mm (8 21/32") |
| Product Net Weight |
2.44 kg (5.38 lbs) |
| Smallest Inner Diameter |
108 mm (4 1/4") |
| Outer Diameter |
168 mm (6 5/8") |
| Largest Outer Diameter |
300 mm (11 13/16") |
| 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 |
| Oxfil |
USD 87.42 |
16 Oct 2026 |
| The Air Market |
USD 163.47 |
15 Oct 2026 |
| FilterFinder Online |
USD 172.00 |
15 Oct 2026 |
| Air Compressor Services |
USD 389.50 |
15 Oct 2026 |
| Compressor Parts Express |
USD 524.60 |
15 Oct 2026 |
| Spare Part Mart |
USD 69.94 |
Today |
Our price of USD 69.94 is 20% to 87% 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-Duty Industrial Applications
In manufacturing plants where compressors run 24/7, this separator ensures consistent oil and water removal, protecting downstream equipment from contamination and reducing unplanned downtime.
High-Humidity Environments
For operations in humid climates, this separator's robust construction and 5 bar collapse pressure handle high moisture loads effectively, extending the life of air dryers and filters.
Fleet Maintenance Consolidation
Facilities with multiple compressor brands can standardise on this separator, as it cross-references several OEM part numbers, simplifying inventory management and reducing stock holding costs.
Retrofit for Older Compressors
When upgrading legacy Atlas Copco GA 45, GA 30 PLUS, or GA 37 units (from serial number API 591000), this separator provides a drop-in replacement that restores original performance without modification.
Frequently asked questions
How can I confirm this separator fits my compressor?
Check your compressor's serial number and model. For Atlas Copco GA 45, GA 30 PLUS, and GA 37 units with serial number API 591000 or later, this separator is a direct fit. For other brands, compare the dimensions and cross-reference your original part number with the list provided.
What is the filtration rating of this separator?
This separator uses a gasket-type filtration media (GASK) designed for oil and water separation. The exact micron rating is not specified, but it matches the original dimensions and ratings for the listed cross-references.
What are the thread and mounting dimensions?
The separator has a smallest inner diameter of 108 mm, an outer diameter of 168 mm, and a largest outer diameter of 300 mm. Total height is 220 mm. Thread details are not provided; ensure your housing matches these dimensions.
Is this an OEM or genuine part?
No, this is an aftermarket replacement built to the original dimensions and ratings. It is not a genuine OEM part but offers equivalent performance at a lower cost.
How do I install this separator?
Installation is straightforward: remove the old separator, clean the housing, and insert the new one ensuring correct flow direction (Out-In). Tighten securely but do not overtighten. Always follow your compressor's service manual.