Atlas Copco Controller Part Numbers: Supersession & Cross-Reference
The number on your old controller is not always the number you buy today. Here is how Atlas Copco controller part numbers change, why, and how to find the correct current replacement.
Why controller part numbers change
A controller part number identifies a specific hardware + firmware configuration. Over a product's life Atlas Copco issues new numbers for several reasons:
- Hardware revision — a new mainboard or display revision replaces the old one (for example the move to PureLogic graphic electronics within the Mk5 family).
- Supersession — an older number is discontinued and formally replaced by a newer one that does the same job.
- Consolidation — one newer controller replaces several older ones (the current Xc4004, for instance, replaces a group of earlier portable controllers).
- Configuration / market — voltage, I/O options or region can carry a different suffix.
Verified interchange examples
These are cross-references we have seen confirmed in official and specialist listings. Always confirm against your machine serial before ordering.
| Part number | Interchange / supersession | Generation |
|---|---|---|
| 1900520016 | Interchangeable with 1900520017 | Elektronikon Mk5 Graphic |
| 1900520201 | Superseded by 1900520202 | Elektronikon Mk5S Swipe |
| Older portable controllers | Many consolidated into Xc4004 | Xc portable |
This list is deliberately short — we only publish interchanges we can stand behind. For any other number, ask us and we confirm the current equivalent rather than guess.
How to find your replacement number
- Read the part number from the controller label — see how to identify your controller.
- Note your compressor model and serial number.
- Send both to us — we confirm the current replacement, whether it's a straight swap, and whether it needs programming.
Frequently asked questions
Why is the part number on my old controller different from the one you sell?
Atlas Copco revises controllers over time — for hardware updates, a new mainboard (for example the move to PureLogic electronics), or a merged replacement that covers several older units. The older number is usually superseded by a newer one that does the same job. Send us the number printed on your unit and we map it to the current equivalent.
Are two controllers with different part numbers interchangeable?
Sometimes. Within one generation the hardware is often shared, so a superseded number and its replacement can be a straight swap once the correct program is loaded. But a physically similar unit with the wrong software will not run your machine. Always confirm by the compressor serial before ordering.
How do I find the current replacement for a discontinued controller?
Give us the old part number and your compressor model and serial. We check it against current Atlas Copco numbering and confirm the correct replacement — including whether it needs programming to match your machine.
Have an old or discontinued part number? Send it with your machine serial and we'll confirm the current replacement — get a quote.