Stainless Steel Propeller Titan 3 13.9X17 Left Hand

Function and Technical Context

This three-blade propeller in HR Titan stainless steel alloy, with a diameter of 13.9 inches and pitch 17, acts as the final element of the outboard propulsion system, converting engine torque into hydraulic thrust through counter-clockwise rotation. Its integration into the gearbox housing directly determines acceleration response, cruising speed, and the operating regime at which the engine functions; a pitch 17 is optimized for semi-rigid vessels and medium hulls seeking balance between top speed and thrust. Construction in HR Titan stainless steel significantly surpasses conventional aluminum propellers in structural rigidity, blade bending resistance under load, and impact tolerance with semi-submerged objects, reducing the risk of permanent deformation that would alter the dynamic balance of the assembly. A propeller outside specification—whether due to damage, leading edge wear, or incorrect pitch—causes crankshaft over-revving, chronic cavitation, loss of effective thrust, and elevated thermal load on the engine group, with the consequent risk of severe failure while underway. This reference is compatible with Suzuki and OMC Johnson/Evinrude outboard motors in the 90 to 140 HP power range, and directly replaces OMC references 0777029 and 5033955, as well as Suzuki 58200-92J50-000 and 99105-0070L-18P.

When to Replace This Component?

The clearest indicators that the propeller requires replacement are the appearance of anomalous vibration perceptible in the steering at different engine speeds, the engine's inability to reach the maximum RPM recommended by the manufacturer under normal load conditions, a visible loss of top speed or initial acceleration response, and excessive cavitation with intense bubbling in the wake astern. Blades with nicks, eroded leading edges, or any degree of curvature should be replaced immediately, as the resulting inertial imbalance accelerates wear on the shaft seal, lower bearing, and gearbox housing gasket, resulting in shop repairs costing significantly more than the propeller itself. It is recommended to perform a complete visual inspection at the beginning of each boating season and after any contact with bottom, rocks, or dense vegetation; preventatively replacing the propeller at the slightest sign of deformation is the most efficient measure to avoid a breakdown in waters distant from port.

Compatible Johnson/Evinrude Engines

Equivalent Manufacturer References