Marathon Alternators

Proven, Top-Performing Alternators For Gensets

Marathon Alternators offer powerful performance, reliable power generation and easy installation, with a wide selection for stand-by and continuous power.

These alternators are ruggedly constructed with either solid state or digital voltage regulators. They have unprecedented voltage regulation in the presence of harmonic voltage distortion to provide sufficient alternator power for your needs.

Marathon is a well-regarded company founded in 1913 out of Wausau, Wisconsin. Marathon Electric is part of the Regal Beloit family of companies. 

Regal Beloit Corporation is a leading manufacturer of electrical and mechanical motion control and power generation products serving markets throughout the world. Regal Beloit is headquartered in Beloit, Wisconsin, and has manufacturing, sales, and service facilities throughout North America and in Mexico, Europe and Asia.

General Power offers the largest stock Marathon Alternators, factory direct and 100% original. Sets from 20 to 3500 kW are available for worldwide shipping. We also carry one of the largest stocks of alternators and alternator parts in all of the United States. Our extensive on-hand inventory provides quick, easy, and expedited delivery to your location. Everything we have in stock is available to ship same day to any country in the world.

Contact us today for same day quotes on all our genuine Marathon Alternator products.