Karl Senner, LLC is the premier distributor, systems integrator, and service provider of high-performance marine propulsion equipment and electrical systems. As the exclusive sales and service representative for REINTJES Marine Gearboxes across North America, we also supply and support a full range of propulsion solutions—including azimuth propulsors, controllable pitch propellers, tunnel thrusters, advanced control systems, and integrated electrical packages.

Backed by decades of experience, we pair premium products with industry-leading service to help customers maximize vessel uptime, safety, and performance. Our long-standing reputation is built on delivering reliable solutions and responsive support throughout the full lifecycle of every vessel.

At Karl Senner, “Propelling Excellence” is more than a tagline—it’s a promise. It reflects our dedication to continuous improvement, operational reliability, and long-term partnerships. From equipment selection to lifetime support, we are committed to moving our customers forward with unmatched propulsion expertise.

Established 1972

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Designed to Maximize Your Uptime

Delivering solutions that enhance performance and reduce downtime.

Marine gearboxes for workboats, high speed vessels, government applications, and all drivelines from 250 to 30,000 kW. German quality, design and manufacturing, backed by industry-leading Karl Senner integration and support.

Azimuth Thrusters and Tunnel Thrusters for workboats ranging from 500kW (670hp) to 7,000kW (9,400hp) per driveline. Robust designs for the most demanding environments, backed by industry-leading Karl Senner integration and support.

Your Partner For Design, Construction, and Vessel Life

From initial concept to construction and throughout the lifespan of your vessel, we provide comprehensive support and expertise, ensuring optimal performance and longevity.

Frequently Asked Questions

Marine Propulsion Support

What does Karl Senner specialize in?

Karl Senner, LLC specializes in marine propulsion equipment, REINTJES marine gearboxes, Steerprop propulsors, spare parts, service support, propulsion integration, and electrical integration for commercial and government vessel applications.

Does Karl Senner support both new vessel projects and existing vessels?

Yes. Karl Senner supports customers from initial vessel design and construction through the full lifecycle of the vessel, including equipment selection, integration support, parts, maintenance, repairs, and long-term service.

What marine products does Karl Senner provide?

Karl Senner provides REINTJES marine gearboxes, Steerprop azimuth and tunnel thrusters, spare parts, complete unit stock, propulsion system support, and related electrical and control system integration solutions.

Does Karl Senner provide 24/7 support?

Yes. Karl Senner offers 24/7 parts and service support to help vessel operators reduce downtime and keep vessels underway. For emergencies, customers can call +1 (504) 469-4000.

Who should contact Karl Senner?

Vessel owners, shipyards, engineers, fleet managers, naval and government operators, commercial marine companies, and maintenance teams can contact Karl Senner for gearbox selection, propulsion support, parts, service, and integration needs.