Part Number: 4F0863821G. Application Guide : A6 C6 2005-08 MODEL YEAR (4F) 4/6 CYLINDER WITH PR NUMBERS 1SB, 1SH, 1SD, 1SG AND 8 CYLINDER WITH PR NUMBERS T79+1SB,1SG,1SH1SD. A6 C6 2009-11 MODEL YEARS (4F) 4-6 CYLINDER WITH PR NUMBERS 1SH, 1SD, 1SB, 1SG.
