4H0 820 911 C · Knurled wheel Audi genuine (OEM) part number 4H0 820 911 C, Knurled wheel. Fitted on (2)KN. WHEEL — pos (15) · GS1,GS3,GS4 (KAT696.BIN)KN. WHEEL — pos 15 (KAT771.BIN) Open the interactive exploded diagram →