Direct from Specialist Manufacturers | 43,000+ Products Available | 30 day money back guarantee
SPM-SEP-3504 Air/Oil Separator Element, 355 x 285 mm, photo
SPM-SEP-3504 Air/Oil Separator Element, 355 x 285 mm, photo 1
SPM-SEP-3504 Air/Oil Separator Element, 355 x 285 mm, photo 2
SPM-SEP-3504 Air/Oil Separator Element, 355 x 285 mm, dimension drawing

SPM-SEP-3504 Air/Oil Separator Element, 355 x 285 mm

$112.98 USD
  • SKU: SPM-SEP-3504
  • Availability: in stock Many in stock Out of stock In-stock at manufacturer. Please add 5-10 days to shipping time
  • Weight: 5.75 kg (12.68 lb)
Keep a spare: buy 2 and the second one is 5% off ($107.33)
Electronic Timer Condensate Drain Valve for A...: $25.02 $23.77 with this part
Nitrile (NBR) O-Ring Assortment Kit, Metric, ...: $9.36 $8.90 with this part
Members earn 112 points on this order. Join today to earn 200 points off your first order.
Atlas Copco 2255300376 is an air/oil separator element, 355 mm (13.98 in) across, 190 mm inside and 285 mm (11.22 in) high. The same element is listed under 12 other numbers from Fai Filtri, HiFi Filter, Keltec, Mann-Filter / Mann & Hummell, Noitech and others, all in the cross reference table below.

The separator strips the fine oil mist out of the compressed air leaving the oil tank, so the oil stays in the compressor and the air going to the line is clean. Every element is checked against the part number before it ships, and every order is covered by our 30 day money back guarantee, worldwide delivery and price beat guarantee. Technical properties & cross references
Specifications
Part Type Air/Oil Separator Element
Replaces Atlas Copco 2255300376
Outside Diameter 355 mm (13.98 in)
Outer Diameter 355 mm (13.98 in)
Inside Diameter 190 mm (7 15/32")
Height 285 mm (11.22 in)
Media Glass fibre coalescing
Stat. HS-Code 842139
Country of Manufacture China
Cross references
Brand Code
Atlas Copco 2255300376
Fai Filtri DFF-275280-0U
HiFi Filter OT 5146
Keltec KV400030P
Mann-Filter / Mann & Hummell 4930255511
Noitech NS 022330
SF Filter SAO54050
Sotras DC 3290
Sotras DC3223
Spare Part Mart SPM-SEP-3504
Sullair 2250100-753
Sullair 2250100-755
T.G. Filter 3275280
United Air Filter S138D1339

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 141.22 19 Oct 2026
The Air Market USD 357.89 19 Oct 2026
FilterFinder Online USD 458.00 19 Oct 2026
Air Compressor Services USD 574.50 19 Oct 2026
Spare Part Mart USD 112.98 Today

Our price of USD 112.98 is 20% to 80% 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

Scheduled service
Change the separator at the hours in the compressor's service plan, usually together with the oil and the oil filter, and sooner if oil carry over or the separator pressure drop rises.

Breakdown spares
Keep one on the shelf so a loaded air/oil separator element does not stop the machine while parts are ordered.

Workshop and fleet stock
Workshops looking after several machines can stock this one element under any of its 13 part numbers.

Frequently asked questions

Is this a genuine Atlas Copco 2255300376?

No. It is an aftermarket air/oil separator element made to replace the Atlas Copco 2255300376. It is not made by or affiliated with Atlas Copco, and the part number is used only to show what it replaces.

Will it fit my machine?

It replaces the element numbered Atlas Copco 2255300376 and the other numbers in the cross reference table. Check the number on the old element or in the machine's parts list, or measure it: this one is 355 mm (13.98 in) across, 190 mm inside and 285 mm (11.22 in) high.

When should I change the element?

Change the separator at the hours in the compressor's service plan, usually together with the oil and the oil filter, and sooner if oil carry over or the separator pressure drop rises.

How do I fit it?

Stop the compressor and let all the pressure out of the oil tank. Remove the old element, clean the sealing faces, fit the new element with its new gaskets and tighten evenly. Run the compressor and check for leaks.

Do you ship to my country?

Yes, we ship worldwide. Shipping is calculated at checkout, and every order is covered by our 30 day money back guarantee and price beat guarantee.

Images and data are used as a guide and are deemed reliable to Spare Part Mart. Product may appear differently (e.g. colour) but will be as per the specs above. All cross references are deemed reliable to our knowledge. We encourage you to double check before ordering.

Related products

BACK TO TOP
Chat directly with MikeThe founder