Every Atlas Copco spare part carries a unique 10-digit part number — for example 1622507381. It is the single most reliable way to order the exact part your compressor needs, and the fastest way to tell a genuine part from a copy. This guide explains how the numbering works and how to make sure what you buy is the real thing.
Why the part number matters more than the description
“Air filter for GA55” can mean several different parts. The 10-digit number cannot — it points to one specific component, with one specification, that fits specific machines. When you source by number, there is no ambiguity: you and your supplier are talking about exactly the same part. That is why experienced buyers always quote the number rather than a description. If you already have it, you can search any part number to get a genuine-parts quote.
How to read an Atlas Copco part number
The number is a fixed 10-digit identifier (you will sometimes see it written in groups, like 1622 5073 81, but it is the same number). It is printed on the part’s label, on the packaging, and listed in your compressor’s parts list. When a part is superseded by a newer version, the number changes — so an up-to-date supplier can also tell you the current number if yours is old.
Five ways to check a part is genuine
- Match the exact number on the part, the box, and your quote — all three should agree.
- Check the packaging — genuine parts come in Atlas Copco branded packaging with clean printing and a part label.
- Look at build quality— correct materials, clean seams, proper markings. Copies often feel and look “almost right”.
- Ask about the source — buy from an authorized distributor who can confirm the supply chain.
- Be wary of prices that are too good — a price far below the market usually means a non-genuine part.
Why genuine parts are worth it
A genuine part is engineered to the same tolerances, materials and service life as the component your machine was built with. A non-genuine filter or separator that looks similar can flow differently, break down sooner, or shed material into the oil — and a small saving on a separator can cost you an airend. Genuine parts also keep your warranty and your air quality intact.