Abstract: A standoff apparatus is provided for facilitating the mounting or retrofitting a vehicle accessory or, in a preferred embodiment, a single studded combination marker/turn signal lamp to a vehicle fender and its purpose to provide additional lighting to alert other motorist or pedestrian of the vehicles presence and the operator's intension. There is an upper standoff body, a common selective ring shim, a lower adaptor, a common washer and a shoulder nut provided to secure the lamp and mount assembly. Secondary securing hardware is also provided which include: a common socket head bolt, a second common selective shim, a common rubber laminated washer and a common locking nut.