I think so. This is similar to what mine looks like
Is the side marker just a reflector? That might be why no one has been able to provide an answer on the type of bulb used.
View attachment 204093
Nope. The side marker is not just a reflector. From FMVSS 108:
S5.5.7On each passenger car and motorcycle, and on each multipurpose passenger vehicle, truck, and bus of less than 80 inches overall width
a) When the parking lamps are activated, the taillamps, license plate lamps, and side marker lamps shall also be activated; and(b) When the headlamps are activated in a steady-burning state, the tail lamps, parking lamps, license plate lamps and side marker lamps shall also be activated.
So while the side marker needs to have an illumination source AND a reflector, there does not appear a requirement for a separate bulb, so the active illumination could come from the headlight bulb - but I doubt it.