This laser is a perfect replacement if your console is skipping on videos or having trouble reading disks.
Wondering which laser you need for your model?
Phat SCPH-3000x uses a KHS-400C
Phat SCPH-5000x uses a KHS-400C
Slim SCPH-7000x uses a SPU3170
Slim SCPH-7500x uses a PVR-802W
Slim SCPH-7700x uses a PVR-802W
Slim SCPH-9000x uses a TDP-182W
You can find your PS2 model number by looking at the sticker on the bottom of your console: