This part fits with part 93273 (Slope Curved 4 x 1 Double No Studs):
Lego mapping includes design ID 63970 for Metallic Silver version.
Click on a colored part below to see the Sets and MOCs that use part 62361 Mudguard 1 1/2 x 6 x 1 [Arch Extended] in that color. You can find an overview of all LEGO Colors here.
If a color is missing, it probably needs to be added to a Set Inventory.