ZM is a company that produces solenoid switches and relays, which were its original product focus. It now offers over 800 models that are sold directly to over 35 countries. ZM products are recognized for their quality and reliability as suppliers to major automakers. Through technological advances in its solenoid switches, ZM has expanded its product lines to include starter motors, alternators, and other components. The catalog provides technical information, application charts, and equivalencies for ZM and original equipment solenoids and relays.