ST1300-MOSFET Rectifier upgrade

Joined
Oct 20, 2025
Messages
74
Age
56
Location
Singapore
Bike
ST1300
Newer generation motorcycles are using MOSFET instead of the old style rectifier like the one found on the ST1300 which runs super hot and tends to break down overtime.

The modern bikes the MOSFET are placed in cooler location away from the alternator.

Anyone tried upgrading to MOSFET successfully?

The old traditional rectifier runs super hot, overtime will burn connectors and wears out faster and less stable voltage.

The never MOSFET type rectifier design runs cooler, better battery life, stable voltage with less stress on connectors.

Given than the alternator is sitting in between the V block where airflow and ventilation is not great, the alternator takes on a lot of heat stress.

Wondering if anybody has successfully upgraded to MOSFET transistors rectifier for ST1300.
 

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