Piston ring number

[taycoss]

Anyone able to help with Audi part number for piston rings on aan?

[Mikes2]

026 198 151 a

[taycoss]

Thanks, that number comes up as mahle 034 74 N0 but number i kept finding for mahle is 034 75 N0

[_ShurikeN]

All these numbers look correct to me.
I suspect Mahle distinguish 03474N0 and 03475N0 by oil scraper ring (stacked-type or box-type).

There is also Mahle 034 75 V0 having different metal alloy.