Brand new 5 pin voltage regulator rectifier to fit:
Yamaha YZF R1 (1998-2001).
This unit is a direct replacement for the Yamaha YZF R1 4XV1, 4XV7, 5JJ1 and 5JJ8 engine models for the years shown above. Just plug in and off you go.
The unit replaces the original Yamaha genuine part no: 4JH-81960-01