Atlas Copco Filter & Separator Part Numbers: How to Find Yours and Order the Right Replacement
If you run an Atlas Copco rotary screw compressor, you already know the filters aren’t the hard part to change. The hard part is finding the right part number and then finding someone who actually stocks it. Atlas Copco numbers show up in manuals, on labels, and on old invoices in a few different formats, and a search that doesn’t match the exact format can come back empty even when the part is sitting on the shelf.
This guide shows you where to find your Atlas Copco filter and separator part numbers, how to read them in any format, and how to order the matching KELTEC OEM equivalent from Compressor Filter Hub.
How Atlas Copco Part Numbers Are Written
Atlas Copco compressor parts use a 10-digit part number. The digits never change, but the way they’re printed does:
- Spaced — the way most Atlas Copco manuals and parts lists print it: 2901 9056 00
- Dashed — common on invoices and distributor sites: 2901-9056-00
- Plain — how it often gets typed into a search bar or a purchase order: 2901905600
All three are the same part. When you search our store, most of our product titles use the dashed format (2901-9056-00), so that’s the most reliable way to search. Or skip searching and use the direct links in the table below.
Where to Find the Part Number on Your Compressor
Before you order, find the number for the exact element in your machine. The best places to look:
- The old element itself. Most separators, oil filters, and air filters carry a label or printed number. Take a photo before you pull it.
- The parts list in your instruction manual. GA and GX manuals list the service parts for that specific model and serial range.
- Your last service kit or invoice. If a service tech or distributor did your last PM, the part numbers are on the paperwork.
- The data plate. Write down the model and serial number. If you can’t find a part number anywhere else, that’s what we need to help you look it up.
Atlas Copco has revised part numbers on some models over the years, so the number on your old element is the safest starting point. If the number on the element doesn’t match your manual, send us both.
Popular Atlas Copco Filters and Separators We Stock
These are some of the Atlas Copco part numbers our customers order most often. Each one links straight to the KELTEC OEM equivalent product page.
| Atlas Copco Part # | Also Written As | KELTEC Equivalent # | Part Type | Shop |
|---|---|---|---|---|
| 2901-9056-00 | 2901 9056 00 2901905600 |
KV80-059 | Air/oil separator | View 2901-9056-00 |
| 9095-7345-00 | 9095 7345 00 9095734500 |
KV140-009 | Air/oil separator | View 9095-7345-00 |
| 1625-8909-27 | 1625 8909 27 1625890927 |
KA295-026 | Air filter | View 1625-8909-27 |
| 1625-8909-22 | 1625 8909 22 1625890922 |
KL450-055 | Oil filter | View 1625-8909-22 |
| 1613-6105-00 | 1613 6105 00 1613610500 |
KL450-014 | Oil filter element | View 1613-6105-00 |
| 1625-7525-01 | 1625 7525 01 1625752501 |
KL535-011 | Oil filter element | View 1625-7525-01 |
| 2906-0119-00 | 2906 0119 00 2906011900 |
KIT-AC011900 | Kit | View 2906-0119-00 |
Looking for a different number? Our Atlas Copco collection lists more than 1,800 KELTEC OEM equivalent products. Browse the full Atlas Copco filters & separators collection.
Separator, Oil Filter, and Air Filter: Change Them Together
On an oil-injected rotary screw compressor, the air filter, oil filter, and air/oil separator all work as a system. A clogged intake filter loads up everything downstream, and a tired separator lets oil carry over into your air lines. Many shops replace all three at the same service so they’re on one schedule. That means one downtime window and one order.
Not sure when yours are due? Our guide on how often to replace intake, oil, and separator filters covers typical intervals, and our separator replacement walkthrough covers the swap itself.
Don’t forget the fluid. If you’re changing the oil at the same time, we carry a KELTEC equivalent listed for Atlas Copco Roto-Inject Fluid (5 gal pail), along with the rest of our compressor lube oil lineup.
Atlas Copco Line Filters (PD and QD Elements)
Downstream of the compressor, Atlas Copco line filters use element designations like PD and QD followed by a size number. PD elements are high-efficiency coalescing filters, and QD elements are activated carbon filters for oil vapor and odor. The number after the letters is the filter size, so match it exactly. For example:
- Atlas Copco PD75+ coalescing element (KELTEC KPPD75+)
- Atlas Copco QD75+ element (KELTEC KPQD75+)
We stock the full range of sizes. You’ll find them in the Atlas Copco collection and in our coalescing filters section.
Quick Checklist Before You Order
- Confirm the part number from the old element or the manual, not from memory.
- Strip spaces and dashes in your head. 2901 9056 00, 2901-9056-00, and 2901905600 are the same part.
- Note your compressor model and serial number in case we need to double-check.
- Order the air filter, oil filter, and separator together if they’re due at the same interval.
- Order before you’re down. Having the next set on the shelf beats waiting on an emergency shipment.
Frequently Asked Questions
Is “2901 9056 00” the same part as “2901-9056-00”?
Yes. Spaces, dashes, or no separators at all, the 10 digits are the part number.
What is a KELTEC OEM equivalent?
KELTEC Technolab manufactures replacement filters and separators built to match the fit, form, and function of the original part. Each product page lists the OEM part number it replaces and the matching KELTEC part number. For a deeper look, read OEM vs OEM equivalent filters.
I only know my compressor model. Can you find the part?
Send us your model, serial number, and a photo of the old element if you have one, and we’ll help you match it.
Get the Right Atlas Copco Part the First Time
Have your part number? Click it in the table above or browse our Atlas Copco filters & separators. Every order ships free.
Can’t find your number? Email info@compressorfilterhub.com or contact us with your compressor model, serial number, and the number off your old element (or a photo of it). We’ll match it and send you a link to order.