Regulator / Rectifier (OEM) – Aprilia, Derbi, Piaggio, Vespa 50 cc 2T/4T, 100 cc 4T (Kokusan)

Description

OEM regulator/rectifier by Kokusan for Aprilia, Derbi, Piaggio, and Vespa scooters with 50 cc 2-stroke and 4-stroke engines, as well as 100 cc 4-stroke engines. Ensures stable voltage, protects the electrical system from overvoltage, and provides reliable engine operation in all conditions.

Features:

• Piaggio OEM code: 641788

• Compatible with Aprilia, Derbi, Piaggio, and Vespa models (50 cc 2T/4T, 100 cc 4T)

• Converts AC voltage from the alternator to a stable 12 V DC current

• Protects the battery, lights, and electronic components from damage

• Manufactured to OEM specifications with high thermal and mechanical resistance

• Direct replacement with no modifications required