Duramax Marine LLC

Booth #1901
17990 Great Lakes Parkway
Hiram , OH 44234
United States

A proven leader in trusted engineered solutions for the marine market. Our Johnson Cutless bearings, DuraCooler heat exchange systems, Johnson Stuffing Boxes and fendering systems can be found on vessels ranging from sailboats to nuclear submarines.

Products & Services


DuraBlue® Composite Rudder Bushing

DuraBlue is a pollution-free, self-lubricating rudder bushing designed to outperform traditional bushing materials. DuraBlue proprietary composite matrix is exceptionally wear resistant with extremely long wear life and high load capacity. DuraBlue has ultra-low friction and eliminates stick slip.Used for rudder stocks, pintles and steering gear bushings, it is an alternative to bronze, brass, nylon and other urethane based materials.DuraBlue is dimensionally stable and has a very low thermal coefficient of expansion in high and low temperature environments. Unlike polyurethane rudder bushings, DuraBlue experiences negligible swelling in water and remains stable in chemical solutions.Lightweight, tolerant to load edging and misalignments, Duramax DuraBlue Composite Rudder Bushings are easy to machine and install. Available in outside diameters 1" - 42" (2.5 - 107cm).

DuraCooler® SuprStak™

DuraCooler® SuprStak™ with TurboTunnel Design is and engineered, double-stacked, hull mounted cooler that “jets” turbulent seawater in a tunnel-like configuration between its top tubes and lower tube assemblies. Design innovations were made to optimize turbulence and greatly increase flow velocity of seawater over the cooler by using state of the art Computational Fluid Dynamic (CFD) modeling techniques. Tested and validated in a full scale water tunnel.DuraCooler® SuprStak™ is the high-performance answer to meet ever increasing cooling requirements using half the hull space. It is available in a one-piece braised or two-piece modular design for easier handling.

Boat Building Supplies

  • Sterntube Seals
  • Cooling Systems
  • Bearings
  • Boat Building Materials

Deck Machinery / Hardware / Equipment

  • Buoys / Floats / Fenders

Propulsion / Power

  • Rudders
  • Shaft Components
  • Propulsion
  • Heat Exchangers
  • Engines