The 90a Brushless ESC and KV3930 Brushless Motor and new and never used, but they were removed from a batch of vehicles that were being parted out.  The ESC has 2 sided tape stuck to the bottom and will most likely need to be removed and replaced with new sticky tape which is not included.  

The ESC Model number is Lansu LS-4090-D
The Motor is KV3930 with 540 size can

Battery connector is T-Plug Also known as Deans style Plug
ESC has power on/off switch

5mm Pinion Shaft