Sullair 250034-129, direct aftermarket replacement. This separator is a high-performance aftermarket separator designed for rotary screw air compressors. With a body height of 420 mm and an outer diameter of 274 mm, this robust component weighs 12.1 kg and features a largest outer diameter of 605 mm. It serves as a direct replacement for separators from brands including Air Maze, Donaldson, Fleetguard, Sullair, and others. Built to the original dimensions and ratings, it ensures efficient separation of oil and air in your compressor system.
Technical properties & cross references
Specifications
| Body Height |
420 mm (16 9/16") |
| Total Height |
420 mm (16 9/16") |
| Product Net Weight |
12.1 kg (26.68 lbs) |
| Smallest Inner Diameter |
190 mm (7 15/32") |
| Outer Diameter |
274 mm (10 25/32") |
| Largest Outer Diameter |
605 mm (23 13/16") |
| Stat. HS-Code |
84149000 |
| Country of Manufacture |
China |
| Smallest Outer Diameter |
274 mm (10 25/32") |
| Largest Inner Diameter |
190 mm (7 15/32") |
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 249.94 |
16 Oct 2026 |
| Hydrafil |
USD 473.95 |
15 Oct 2026 |
| The Air Market |
USD 503.46 |
15 Oct 2026 |
| Air Compressor Services |
USD 560.00 |
15 Oct 2026 |
| FilterFinder Online |
USD 757.00 |
15 Oct 2026 |
| Compressor Parts Express |
USD 1,239.00 |
15 Oct 2026 |
| Spare Part Mart |
USD 199.95 |
Today |
Our price of USD 199.95 is 20% to 84% 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
Heavy-Duty Continuous Operation
In industrial settings where compressors run 24/7, such as manufacturing plants, this separator maintains high separation efficiency, reducing oil carryover and protecting downstream equipment.
High-Temperature Environments
For compressors operating in hot climates or near furnaces, this separator withstands elevated temperatures without degrading, ensuring consistent performance and longer service intervals.
Fleet Maintenance Simplification
Facilities with multiple Sullair models like the LS 25 S and TS 32 series can standardise on one separator part number, simplifying inventory management and reducing downtime.
Remote or Harsh Conditions
In mining or construction sites where dust and debris are prevalent, the separator's robust construction helps maintain oil purity, extending the life of the compressor.
Frequently asked questions
Will this separator fit my Sullair LS 25 S 200 HP compressor?
Yes, this separator is verified to fit the Sullair LS 25 S 200 HP, as well as other Sullair models such as TS 32 300/350 HP and VS 20.
What is the filtration rating of this separator?
The separator is designed for efficient oil-air separation in rotary screw compressors. Specific micron ratings are not provided, but it meets the original dimensions and ratings for the listed cross-reference brands.
What are the dimensions and does it have threads?
The separator has a body height of 420 mm, outer diameter of 274 mm, smallest inner diameter of 190 mm, and largest outer diameter of 605 mm. It does not have threads; it uses a gasket seal.
Is this an OEM or aftermarket part?
This is an aftermarket separator, not an OEM part. It is a direct replacement for separators from brands like Donaldson, Fleetguard, and Sullair, built to match their specifications.
How do I install this separator?
Installation is straightforward: remove the old separator, clean the mounting surface, place the new separator with the gasket in position, and tighten the retaining bolts to the manufacturer's torque specifications.