For over 40 years, Calterm has remained committed to providing the best parts, prices and customer service in the automotive aftermarket industry. A large variety of terminals, wire, switches, tools, testers and more help auto mechanics get the job done right the first time.

Keeping Maritime Moving

Focusing on common issues that Maritime electrical installers face every day, Calterm has engineered significant improvements to it's electrical assemblies to save time, space and improve durability. The result is a robust product line with greater capacity and extended product life. Calterm products are built to withstand the harshest environment.

Recreational Vehicles

We offer RV electrical accessories for the "do-it-yourselfer" including RV electrical wire, connectors, cable ties, heat shrink products and battery switches designed to provide long lasting and reliable electrical connections.


Calterm minimizes expensive downtime by helping you maintain and repair of all your fleet vehicles and heavy equipment by providing quality parts for bumper-to-bumper preventative management, proper diagnostics and skilled repairs.

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