The only part number I found for this engine is
A 001 030 04 24 PISTON RING PARTS KIT
As of engine 980 12 061152
So for later engine.
Yours would be A 000 030 90 24, As of engine 980 12 042380, which is NLA.
You would have to check somehow if they fit.
These are part sets, 4 rings each, actually.