These "Sheet / pressure switches" are GENUINE new Pioneer parts and fit CDJ800, CDJ800Mk2, CDJ1000Mk2, CDJ1000Mk3, DVJ-1000 & DVJ-X1.
Part number DSX1065 which also replaces DSX1060
The common fault this part cures is when you select "vinyl" mode and play stops as if you have already put your hand on the platter.
The usual cause of this fault is either liquid spillage or stacking players on top of each other which squashes the switch too much and it sticks.
All my stock is in the UK and available for immediate despatch and I am happy to combine postage cost for multiple parts orders - request a total before paying and I will send you a revised invoice.