This regulator has 6 pins. 6 Pins and 5 Pins regulator can be replaced with each other.
Compatible with 6 Pins Regulator. One pin is useless.
Compatible with ZX6R ZX-6R ZX10R ZX-10R ZX600R ZX636 Z1000
Compatible with 99999-0377 21066-0028 21066-0731 21066-0730 21066-0716
Note: This item is a replacement part. Not OEM part. Please make sure the images are the same with what you want. If not, please do not purchase it even your model is in the described list!