Stainless Steel Boat Propellers
Stainless steel propellers are a popular choice for boaters looking for a rigid, precisely shaped blade that maintains its profile under load. CritPro carries Turning Point Express Mach3 and Mach4 propellers in a range of diameters, pitches, and rotation options. Compare the specifications carefully to choose a propeller that matches your engine, gearcase, and typical boat load.
Compare Mach3 and Mach4 Propellers
Turning Point Mach3 propellers use three-blade designs, while Mach4 models have four blades and different handling characteristics. The best choice depends on your engine's recommended wide-open-throttle RPM range, the weight you carry, and how the boat performs with its current propeller. Look at diameter, pitch, right-hand or left-hand rotation, and blade count before making a selection.
Choose the Correct Hub Kit
Many Turning Point Express stainless steel propellers use an interchangeable hub system, and the engine-specific installation hub is sold separately. Verify your engine and gearcase compatibility in Turning Point's fitment chart before ordering the propeller and hub together. For additional choices, browse our aluminum propellers or explore the full Hull Protection & Propellers category.