Turning Point 13.25x17 RH Mach4 Stainless Steel Propeller

Four blades distinguish the Turning Point Express Mach4 EX1/EX2-1317-4 from the three-blade Mach3 models. This right-hand stainless steel propeller measures 13.25 inches in diameter with 17 inches of pitch. The extra blade surface is intended to emphasize hole-shot response and confident grip when compared with a similar three-blade design. It is a useful configuration to evaluate when handling under load matters as much as top-end speed.

The Mach4 series uses Turning Point’s TP17 stainless formulation and aggressively cupped blade geometry. A 17-inch pitch is a middle choice between lower-pitch acceleration-oriented sizes and higher-pitch alternatives, although actual results depend on the hull and engine. Its through-hub exhaust passages are designed for reduced restriction in the propeller housing. Match the pitch to the engine’s recommended operating range rather than relying on blade count alone.

The EX1/EX2 stainless housing is supplied without the engine-specific hub kit required for installation. Before ordering, verify right-hand rotation, available gearcase clearance, and the Turning Point hub specified for the drive. The proper hub system is essential for transmitting thrust and accommodating the shaft. Browse other stainless steel propellers in our boating department.

• Four-blade configuration geared toward loaded handling
• Cupped TP17 stainless blade construction
• Through-hub exhaust-flow design
• Requires separately selected engine-specific hub