fender scn pickup

How can I tell if my guitar pickups are stock?
I recently bought a used Fender Stratocaster. I wonder if the pickups are stock. The pickup cover has the letters SCN on them but the actual pickup could be switched right? How can I tell if the pickups are stock?
I know that it’s a American Deluxe, but it still hums.
If you are experienced enough, some people can look at the solder job on the wiring, and tell if it “looks” factory or not.
Very few people that change pickups, can do as clean a solder job as the factory can.
Steinberger with Fender SCN pickup review