Turning Point Hub Kit #715

The Turning Point Hub Kit #715 is a direct-fit propeller hub system engineered for Yamaha 350 outboard motors. This kit replaces your factory hub with a modular design that isolates power transfer between engine and propeller, eliminating the shock loads that crack hubs and damage gearboxes during hard acceleration or impact. Built around inner splines that adapt to engine torque characteristics and an outer hub compatible with multiple Turning Point propeller models, the Kit #715 lets you swap props without replacing the entire assembly—a significant cost advantage for anglers who run different propeller pitches seasonally or for different water conditions.

The hub features corrosion-resistant brass spline construction, critical for saltwater and freshwater environments where galvanic corrosion degrades standard steel hubs. The engineered elastomer insert between inner and outer hubs absorbs peak torque spikes, reducing vibration and propeller chatter that can shake loose hardware and compromise control at cruising speeds. By decoupling rotational shock, the system protects both the propeller hub itself and the transmission bearing surfaces in your lower unit—failures that typically require expensive gearbox repairs. The design also supports emergency cavitation recovery without hub failure, meaning your propeller can break free under load without cracking the mounting interface.

This kit suits Yamaha 350 operators running 25–350 hp engines across both recreational fishing and serious offshore applications. Retrofit is straightforward for anyone with basic mechanical skills; the system uses standard propeller shaft dimensions for Yamaha applications. The lifetime warranty underscores manufacturer confidence in hub durability. For Yamaha 350 owners tired of replacing cracked or failed hubs every few seasons, or those switching between multiple propellers, the Kit #715 provides durability and compatibility at a fraction of the cost of repeated propeller and hub failures.