Joe Dart

Joe's Mexican Jazz bass with a Badass 2 Bridge

seafoam green Ernieball Musicman Stingray bass

Olympic White American Standard Fender Jazz Bass

in a few of vulfpeck's 2017 music videos it can be seen that he is playing a precision junior, identifiable by the one volume knob and very short scale.

Listed in his gear at the bottom

Joe doesn't seem to own a stingray bass. https://www.youtube.com/watch?v=d5K3UgrPdbQ A Music Man here in this video is also a Sterling 4 Classic. Stingray 4 basses have control plates.

In the video we can see Joe playing an electric bass in an upright position. When the camera pans over him, we can clearly see the SX logo on the bass, along with some additional writing along the headstock. I would tend to believe the writing says Vintage Series. It is also very clearly a natural finish, the body probably is made of ash.

Joe Dart uses the DB 751 in this live performance at Lockn'

Dart can be seen using this amp at 0:58

Listed in his gear at the bottom

Listed in his gear at the bottom

According to the article and also the Markbass website.

Listed in his gear at the bottom

Listed in his gear at the bottom

Listed in his gear at the bottom