[Efthreeoh]

This is the part you are looking for:

No. 05 Covering right 1 P/N: 51757166650 $7.90


Also, get new fasteners, No.19 and 20 circled. I recommend buying a few spares of both the deflector and fastneners since they are so inexpensive. The shipping cost is probably more than the parts, so it makes sense to have some spares for the next time it happens.