The Triumph rad cowl, inner, mldg is for the left hand side and is number 3 shown in the diagram.
This item fits the following models: Triumph Street Triple RS 800262 > 965682, Street Triple R 806646 > 982751, Street Triple S & Street Triple S A2 Restricted License Version - 803572 > 968958 and Street Triple S 660cc AU/NZ - 803572 > 967906.