Heavy Duty Alternator

Internal Magnetic Switch Solenoid (IMSS)

Enhance Starter Reliability

IMSS (patent pending) is a one-wire design integrated inside the solenoid. Input current is capable of ECM control and protects it from voltage spikes.  IMSS withstands engine temperature up to 120°C/248°F. Because of its integration inside the solenoid, it is protected from corrosion caused by environmental factors and damage from vibration issues.

IMSS Simplifies Installation:

No additional wiring or mounting bracket required
Reduced customer wiring harness complexity
Removes connections points, reducing corrosion


 Conventional IMS Design                             IMSS Design